Nanostructured materials have received tremendous interest due to their unique mechanical/electrical properties and overall behavior contributed by the complex synergy of bulk and interfacial properties for efficient ...Nanostructured materials have received tremendous interest due to their unique mechanical/electrical properties and overall behavior contributed by the complex synergy of bulk and interfacial properties for efficient and effective energy conversion and storage. The booming development of nanotechnology affords emerging but effective tools in designing advanced energy material. We reviewed the significant progress and dominated nanostructured energy materials in electrochemical energy conversion and storage devices, including lithium ion batteries, lithium-sulfur batteries, lithium-oxygen batteries, lithium metal batteries, and supercapacitors. The use of nanostructured electrocatalyst for effective electrocatalysis in oxygen reduction and oxygen evolution reactions for fuel cells and metal-air batteries was also included. The challenges in the undesirable side reactions between electrolytes and electrode due to high electrode/electrolyte contact area, low volumetric energy density of electrode owing to low tap density, and uniform production of complex energy materials in working devices should be overcome to fully demonstrate the advanced energy nanostructures for electrochemical energy conversion and storage. The energy chemistry at the interfaces of nanostructured electrode/electrolyte is highly expected to guide the rational design and full demonstration of energy materials in a working device. (C) 2016 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.展开更多
With the development of modern society,the requirement for energy has become increasingly important on a global scale.Therefore,the exploration of novel materials for renewable energy technologies is urgently needed.T...With the development of modern society,the requirement for energy has become increasingly important on a global scale.Therefore,the exploration of novel materials for renewable energy technologies is urgently needed.Traditional methods are difficult to meet the requirements for materials science due to long experimental period and high cost.Nowadays,machine learning(ML)is rising as a new research paradigm to revolutionize materials discovery.In this review,we briefly introduce the basic procedure of ML and common algorithms in materials science,and particularly focus on latest progress in applying ML to property prediction and materials development for energyrelated fields,including catalysis,batteries,solar cells,and gas capture.Moreover,contributions of ML to experiments are involved as well.We highly expect that this review could lead the way forward in the future development of ML in materials science.展开更多
Nanocarbon materials play a critical role in the development of new or improved technologies and devices for sustainable production and use of renewable energy. This perspective paper defines some of the trends and ou...Nanocarbon materials play a critical role in the development of new or improved technologies and devices for sustainable production and use of renewable energy. This perspective paper defines some of the trends and outlooks in this exciting area, with the effort of evidencing some of the possibilities offered from the growing level of knowledge, as testified from the exponentially rising number of publications, and putting bases for a more rational design of these nanomaterials. The basic members of the new carbon family are fullerene, graphene, and carbon nanotube. Derived from them are carbon quantum dots, nanohorn, nanofiber, nano ribbon, nanocapsulate, nanocage and other nanomorphologies. Second generation nanocarbons are those which have been modified by surface functionalization or doping with heteroatoms to create specific tailored properties. The third generation of nanocarbons is the nanoarchitectured supramolecular hybrids or composites of the first and second genera- tion nanocarbons, or with organic or inorganic species. The advantages of the new carbon materials, relating to the field of sustainable energy, are discussed, evidencing the unique properties that they offer for developing next generation solar devices and energy storage solutions.展开更多
Research on two-dimensional(2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since ...Research on two-dimensional(2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications. In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief backgroundintroduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials(PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.展开更多
To address the worldwide energy challenges,advanced energy storage and conversion systems with high comprehensive performances,as the promising technologies,are inevitably required on a timely basis.The performance of...To address the worldwide energy challenges,advanced energy storage and conversion systems with high comprehensive performances,as the promising technologies,are inevitably required on a timely basis.The performance of these energy systems is intimately dependent on the properties of their electrodes.In addition to the electrode materials selection and their compositional optimization,materials fabrication with the designed nanostructure also provides significant benefits for their performances.In the past decade,considerable efforts have been made to promote the search for multidimensional nanostructures containing both onedimensional(1D)and two-dimensional(2D)nanostructures in synergy,namely,1D-2D synergized nanostructures.By developing the freestanding electrodes with such unique nanoarchitectures,the structural features and electroactivities of each component can be manifested,where the synergistic properties among them can be simultaneously obtained for further enhanced properties,such as the increased number of active sites,fast electronic/ionic transport,and so forth.This review overviews the state-of-the-art on the 1D-2D synergized nanostructures,which can be broadly divided into three groups,namely,core/shell,cactus-like,and sandwich-like nanostructures.For each category,we introduce them from the aspects of structural features,fabrication methodologies to their successful applications in different types of energy storage/conversion devices,including rechargeable batteries,supercapacitors,water splitting,and so forth.Finally,the main challenges faced by and perspectives on the 1D-2D synergized nanostructures are discussed.展开更多
Metal-organic frameworks(MOFs)are of quite a significance in the field of inorganic-organic hybrid crystals.Especially,MOFs have attracted increasing attention in recent years due to their large specific surface area,...Metal-organic frameworks(MOFs)are of quite a significance in the field of inorganic-organic hybrid crystals.Especially,MOFs have attracted increasing attention in recent years due to their large specific surface area,desirable electrical conductivity,controllable porosity,tunable geometric structure,and excellent thermal/chemical stability.Some recent studies have shown that carbon materials prepared by MOFs as precursors can retain the privileged structure of MOFs,such as large specific surface area and porous structure and,in contrast,realize in situ doping with heteroatoms(eg,N,S,P,and B).Moreover,by selecting appropriate MOF precursors,the composition and morphology of the carbon products can be easily adjusted.These remarkable structural advantages enable the great potential of MOF-derived carbon as high-performance energy materials,which to date have been applied in the fields of energy storage and conversion systems.In this review,we summarize the latest advances in MOF-derived carbon materials for energy storage applications.We first introduce the compositions,structures,and synthesis methods of MOF-derived carbon materials,and then discuss their applications and potentials in energy storage systems,including rechargeable lithium/sodium-ion batteries,lithium-sulfur batteries,supercapacitors,and so forth,in detail.Finally,we put forward our own perspectives on the future development of MOF-derived carbon materials.展开更多
The ever-increasing environmental/energy crisis as well as the rapid upgrading of mobile devices had stimulated intensive research attention on promising alternative energy storage and conversion devices.Among these d...The ever-increasing environmental/energy crisis as well as the rapid upgrading of mobile devices had stimulated intensive research attention on promising alternative energy storage and conversion devices.Among these devices,alkali metal ion batteries,such as lithium-ion batteries(LIBs) had attracted increasing research attention due to its several advantages including,environmental friendliness,high power density,long cycle life and excellent reversibility.It had been widely used in consumer electronics,electric vehicles,and large power grids et ac.Silicon-based(silicon and their oxides,carbides) anodes had been widely studied.Its several advantages including low cost,high theoretical capacity,natural abundance,and environmental friendliness,which shows great potential as anodes of LIBs.In this review,we summarized the recently progress in the synthetic method of silicon matrix composites.The empirical method for prelithiation of silicon-based materials were also provided.Further,we also reviewed some novel characterization methods.Finally,the new design,preparation methods and properties of these nano materials were reviewed and compared.We hoped that this review can provide a general overview of recent progress and we briefly highlighted the current challenges and prospects,and will clarify the future trend of silicon anode LIBs research.展开更多
Graphene attracts more and more scientists and researchers owing to its superior electronic,thermal,and mechanical properties.For material scientists,graphene is a kind of versatile building blocks,and considerable pr...Graphene attracts more and more scientists and researchers owing to its superior electronic,thermal,and mechanical properties.For material scientists,graphene is a kind of versatile building blocks,and considerable progress has been made in recent years.Graphene-based hybrid materials have been prepared by incorporating inorganic species and/or cross-linking of organic species through covalent and/or noncovalent interactions.The graphene-based hybrid materials show improved or excellent performance in various fields.In this review,we summarize the synthesis of graphene and graphene-based hybrid materials,and their applications in energy storage and conversion.展开更多
设计了应用于改善电网电能质量场景下飞轮储能系统的双层结构能量管理系统,其中能量管理系统的上层——决策管理层利用模糊算法,考虑飞轮储能系统状态和平抑风电功率波动需求来确定飞轮储能装置的充放电功率参考值,下层——调度控制层...设计了应用于改善电网电能质量场景下飞轮储能系统的双层结构能量管理系统,其中能量管理系统的上层——决策管理层利用模糊算法,考虑飞轮储能系统状态和平抑风电功率波动需求来确定飞轮储能装置的充放电功率参考值,下层——调度控制层通过双环控制背靠背双PWM变流器实现飞轮储能与电网间的功率交换。在Matlab/Simulink下仿真分析飞轮储能的运行状态和比较风电场采用飞轮储能调节有功功率前后的公共连接点(point of common coupling,PCC)处电压波动,仿真结果验证了飞轮储能系统能量管理系统的有效性,可提高储能装置的利用效率,改善电能质量。展开更多
基金supported by the National Key Research and Development Program (no.2016YFA0202500)National Basic Research Program of China (2015CB932500)the Natural Scientific Foundation of China (nos.21306102 and 21422604)
文摘Nanostructured materials have received tremendous interest due to their unique mechanical/electrical properties and overall behavior contributed by the complex synergy of bulk and interfacial properties for efficient and effective energy conversion and storage. The booming development of nanotechnology affords emerging but effective tools in designing advanced energy material. We reviewed the significant progress and dominated nanostructured energy materials in electrochemical energy conversion and storage devices, including lithium ion batteries, lithium-sulfur batteries, lithium-oxygen batteries, lithium metal batteries, and supercapacitors. The use of nanostructured electrocatalyst for effective electrocatalysis in oxygen reduction and oxygen evolution reactions for fuel cells and metal-air batteries was also included. The challenges in the undesirable side reactions between electrolytes and electrode due to high electrode/electrolyte contact area, low volumetric energy density of electrode owing to low tap density, and uniform production of complex energy materials in working devices should be overcome to fully demonstrate the advanced energy nanostructures for electrochemical energy conversion and storage. The energy chemistry at the interfaces of nanostructured electrode/electrolyte is highly expected to guide the rational design and full demonstration of energy materials in a working device. (C) 2016 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
基金National Natural Science Foundation of China,Grant/Award Number:21933006China Postdoctral Science Foundation,Grant/Award Number:2019M660055+1 种基金This work was supported by NSFC(21933006)China Postdoctral Science Foundation(2019M660055)in China.
文摘With the development of modern society,the requirement for energy has become increasingly important on a global scale.Therefore,the exploration of novel materials for renewable energy technologies is urgently needed.Traditional methods are difficult to meet the requirements for materials science due to long experimental period and high cost.Nowadays,machine learning(ML)is rising as a new research paradigm to revolutionize materials discovery.In this review,we briefly introduce the basic procedure of ML and common algorithms in materials science,and particularly focus on latest progress in applying ML to property prediction and materials development for energyrelated fields,including catalysis,batteries,solar cells,and gas capture.Moreover,contributions of ML to experiments are involved as well.We highly expect that this review could lead the way forward in the future development of ML in materials science.
基金the financial support by MOST (2011CBA00504)NSFC (21133010, 50921004, 212111074) of China
文摘Nanocarbon materials play a critical role in the development of new or improved technologies and devices for sustainable production and use of renewable energy. This perspective paper defines some of the trends and outlooks in this exciting area, with the effort of evidencing some of the possibilities offered from the growing level of knowledge, as testified from the exponentially rising number of publications, and putting bases for a more rational design of these nanomaterials. The basic members of the new carbon family are fullerene, graphene, and carbon nanotube. Derived from them are carbon quantum dots, nanohorn, nanofiber, nano ribbon, nanocapsulate, nanocage and other nanomorphologies. Second generation nanocarbons are those which have been modified by surface functionalization or doping with heteroatoms to create specific tailored properties. The third generation of nanocarbons is the nanoarchitectured supramolecular hybrids or composites of the first and second genera- tion nanocarbons, or with organic or inorganic species. The advantages of the new carbon materials, relating to the field of sustainable energy, are discussed, evidencing the unique properties that they offer for developing next generation solar devices and energy storage solutions.
文摘Research on two-dimensional(2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications. In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief backgroundintroduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials(PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.
基金National University of Singapore,Grant/Award Number:MOE2016-T2-2-138the Centre for Advanced 2D Materials。
文摘To address the worldwide energy challenges,advanced energy storage and conversion systems with high comprehensive performances,as the promising technologies,are inevitably required on a timely basis.The performance of these energy systems is intimately dependent on the properties of their electrodes.In addition to the electrode materials selection and their compositional optimization,materials fabrication with the designed nanostructure also provides significant benefits for their performances.In the past decade,considerable efforts have been made to promote the search for multidimensional nanostructures containing both onedimensional(1D)and two-dimensional(2D)nanostructures in synergy,namely,1D-2D synergized nanostructures.By developing the freestanding electrodes with such unique nanoarchitectures,the structural features and electroactivities of each component can be manifested,where the synergistic properties among them can be simultaneously obtained for further enhanced properties,such as the increased number of active sites,fast electronic/ionic transport,and so forth.This review overviews the state-of-the-art on the 1D-2D synergized nanostructures,which can be broadly divided into three groups,namely,core/shell,cactus-like,and sandwich-like nanostructures.For each category,we introduce them from the aspects of structural features,fabrication methodologies to their successful applications in different types of energy storage/conversion devices,including rechargeable batteries,supercapacitors,water splitting,and so forth.Finally,the main challenges faced by and perspectives on the 1D-2D synergized nanostructures are discussed.
基金This study acknowledges the supports by the Shenzhen Science and Technology Innovation Commission under Grant JCYJ20180507181806316the City University of Hong Kong under project Fundamental Investigation of Phase Transformative Materials for Energy Application(Project No.9610399)the Shenzhen Research Institute,City University of Hong Kong.
文摘Metal-organic frameworks(MOFs)are of quite a significance in the field of inorganic-organic hybrid crystals.Especially,MOFs have attracted increasing attention in recent years due to their large specific surface area,desirable electrical conductivity,controllable porosity,tunable geometric structure,and excellent thermal/chemical stability.Some recent studies have shown that carbon materials prepared by MOFs as precursors can retain the privileged structure of MOFs,such as large specific surface area and porous structure and,in contrast,realize in situ doping with heteroatoms(eg,N,S,P,and B).Moreover,by selecting appropriate MOF precursors,the composition and morphology of the carbon products can be easily adjusted.These remarkable structural advantages enable the great potential of MOF-derived carbon as high-performance energy materials,which to date have been applied in the fields of energy storage and conversion systems.In this review,we summarize the latest advances in MOF-derived carbon materials for energy storage applications.We first introduce the compositions,structures,and synthesis methods of MOF-derived carbon materials,and then discuss their applications and potentials in energy storage systems,including rechargeable lithium/sodium-ion batteries,lithium-sulfur batteries,supercapacitors,and so forth,in detail.Finally,we put forward our own perspectives on the future development of MOF-derived carbon materials.
基金financially supported by the International Science & Technology Cooperation Program of China under 2019YFE0100200the NSAF (Grant No. U1930113)+2 种基金the Beijing Natural Science Foundation (Grant No. L182022)the 13th Five-Year Plan of Advance Research and Sharing Techniques by the Equipment Department (41421040202)the SAST (2018-114).
文摘The ever-increasing environmental/energy crisis as well as the rapid upgrading of mobile devices had stimulated intensive research attention on promising alternative energy storage and conversion devices.Among these devices,alkali metal ion batteries,such as lithium-ion batteries(LIBs) had attracted increasing research attention due to its several advantages including,environmental friendliness,high power density,long cycle life and excellent reversibility.It had been widely used in consumer electronics,electric vehicles,and large power grids et ac.Silicon-based(silicon and their oxides,carbides) anodes had been widely studied.Its several advantages including low cost,high theoretical capacity,natural abundance,and environmental friendliness,which shows great potential as anodes of LIBs.In this review,we summarized the recently progress in the synthetic method of silicon matrix composites.The empirical method for prelithiation of silicon-based materials were also provided.Further,we also reviewed some novel characterization methods.Finally,the new design,preparation methods and properties of these nano materials were reviewed and compared.We hoped that this review can provide a general overview of recent progress and we briefly highlighted the current challenges and prospects,and will clarify the future trend of silicon anode LIBs research.
基金supported by the National Natural Science Foundation of China(91023001)the Knowledge Innovation Program of Chinese Academy of Sciences(KJCX2-YW-H21)
文摘Graphene attracts more and more scientists and researchers owing to its superior electronic,thermal,and mechanical properties.For material scientists,graphene is a kind of versatile building blocks,and considerable progress has been made in recent years.Graphene-based hybrid materials have been prepared by incorporating inorganic species and/or cross-linking of organic species through covalent and/or noncovalent interactions.The graphene-based hybrid materials show improved or excellent performance in various fields.In this review,we summarize the synthesis of graphene and graphene-based hybrid materials,and their applications in energy storage and conversion.
文摘设计了应用于改善电网电能质量场景下飞轮储能系统的双层结构能量管理系统,其中能量管理系统的上层——决策管理层利用模糊算法,考虑飞轮储能系统状态和平抑风电功率波动需求来确定飞轮储能装置的充放电功率参考值,下层——调度控制层通过双环控制背靠背双PWM变流器实现飞轮储能与电网间的功率交换。在Matlab/Simulink下仿真分析飞轮储能的运行状态和比较风电场采用飞轮储能调节有功功率前后的公共连接点(point of common coupling,PCC)处电压波动,仿真结果验证了飞轮储能系统能量管理系统的有效性,可提高储能装置的利用效率,改善电能质量。
