2023年2月17日,Hand[1]在Science上发表了“Hidden hydrogen:Does Earth hold vast stores of a renewable,carbonfree fuel?”一文,对地球上是否存在巨量的天然氢(H_(2))进行了探讨,引发了全球能源界和科技界对这一可再生零碳能源的热...2023年2月17日,Hand[1]在Science上发表了“Hidden hydrogen:Does Earth hold vast stores of a renewable,carbonfree fuel?”一文,对地球上是否存在巨量的天然氢(H_(2))进行了探讨,引发了全球能源界和科技界对这一可再生零碳能源的热议,“寻找天然氢源的热潮”也入选了Science“2023年度十大科学突破”.H2燃烧产物只有水,不释放CO_(2),因而被认为是最环保的绿色能源.天然H2作为能源转型背景下不可忽视的新能源之一[2],除了在未来一次能源需求中扮演重要角色外,甚至还可能成为气候问题的“解药”[1],同时其在原始有机质分子[3]和地球早期生命形成[4,5]中可能扮演了重要角色,因而得到了国际社会越来越多的关注.展开更多
In order to assess the dynamics of molecular conversion,scientists simulated the low-temperature synthesis of polycyclic aromatic hydrocarbons(PAHs)in Titan’s atmosphere[1],and noticed the transformation(hydrogenatio...In order to assess the dynamics of molecular conversion,scientists simulated the low-temperature synthesis of polycyclic aromatic hydrocarbons(PAHs)in Titan’s atmosphere[1],and noticed the transformation(hydrogenation,oxygenation,and hydroxylation to complex molecules)of PAHs under interstellar medium conditions.Geological hydrothermal systems have also drawn attention as potential key sites for various organic synthesis and transformation reactions[2,3].Thus the formation of abiotic CH4[4],which has proven to be an important component of deep hydrothermal fluids that are generated outside the temperature regime envisaged for thermogenic gases,have long been reported in a range of global hydrothermal sites,including mid-ocean ridges,continental rifts,pre-orogenic and subduction zones,back-arcs,hot springs,and volcanically-active areas.These transformation processes have been suggested to occur at the water–mineral interface.There is compelling evidence for the generation of C-H chain molecules from inorganic chemicals via abiotic reactions(e.g.,Fischer-Tropsch synthesis of CH4)in laboratory and field studies[5,6].However,a huge gap remains in the understanding of carbon and hydrogen evolution and heterocyclization from C-H chain molecules to complex heterocyclic materials and then possible hydrophobic or hydrophilic macromolecules,and the corresponding reaction mechanism(s).The occurrence of abundant and complex heterocyclic molecules formed through abiotic processes is rare in natural regions associated with deep fluid movement and activity。展开更多
文摘2023年2月17日,Hand[1]在Science上发表了“Hidden hydrogen:Does Earth hold vast stores of a renewable,carbonfree fuel?”一文,对地球上是否存在巨量的天然氢(H_(2))进行了探讨,引发了全球能源界和科技界对这一可再生零碳能源的热议,“寻找天然氢源的热潮”也入选了Science“2023年度十大科学突破”.H2燃烧产物只有水,不释放CO_(2),因而被认为是最环保的绿色能源.天然H2作为能源转型背景下不可忽视的新能源之一[2],除了在未来一次能源需求中扮演重要角色外,甚至还可能成为气候问题的“解药”[1],同时其在原始有机质分子[3]和地球早期生命形成[4,5]中可能扮演了重要角色,因而得到了国际社会越来越多的关注.
基金supported by the National Natural Science Foundation of China(41625009 and U20B6001)Research support to Qi Fu from United States National Science Foundation CAREER program(OCE-1652481)+1 种基金American Chemical Society Petroleum Research Fund(54474-DNI2)the support from the Tencent Foundation through the XPLORER PRIZE,China。
文摘In order to assess the dynamics of molecular conversion,scientists simulated the low-temperature synthesis of polycyclic aromatic hydrocarbons(PAHs)in Titan’s atmosphere[1],and noticed the transformation(hydrogenation,oxygenation,and hydroxylation to complex molecules)of PAHs under interstellar medium conditions.Geological hydrothermal systems have also drawn attention as potential key sites for various organic synthesis and transformation reactions[2,3].Thus the formation of abiotic CH4[4],which has proven to be an important component of deep hydrothermal fluids that are generated outside the temperature regime envisaged for thermogenic gases,have long been reported in a range of global hydrothermal sites,including mid-ocean ridges,continental rifts,pre-orogenic and subduction zones,back-arcs,hot springs,and volcanically-active areas.These transformation processes have been suggested to occur at the water–mineral interface.There is compelling evidence for the generation of C-H chain molecules from inorganic chemicals via abiotic reactions(e.g.,Fischer-Tropsch synthesis of CH4)in laboratory and field studies[5,6].However,a huge gap remains in the understanding of carbon and hydrogen evolution and heterocyclization from C-H chain molecules to complex heterocyclic materials and then possible hydrophobic or hydrophilic macromolecules,and the corresponding reaction mechanism(s).The occurrence of abundant and complex heterocyclic molecules formed through abiotic processes is rare in natural regions associated with deep fluid movement and activity。
