Well defined BiOI nanolamellas and BiSI nanorods have been synthesized by a solventless method. The phase identity, morphology, growth orientation, and conversion from lamella to rod have been investigated. Several ex...Well defined BiOI nanolamellas and BiSI nanorods have been synthesized by a solventless method. The phase identity, morphology, growth orientation, and conversion from lamella to rod have been investigated. Several experimental facts suggest that the growth orientations of BiOI nanolamellas and BiSI nanorods are guided by their corresponding crystal structure motifs. The optical band gaps of BiOI and BiSI are measured to be 1.97 and 1.61 eV, and the visible light photocatalytic activity of BiOI lamellas is primarily measured.展开更多
Solventless mechanochemical synthesis by manual grinding was applied to grow organic proton conducting salts,imidazole-succinic acid(C_(3)H_(4)N_(2)-HOOC(CH_(2))_(2)COOH)and imidazole-glutaric acid(C_(3)H_(4)N_(2)-HOO...Solventless mechanochemical synthesis by manual grinding was applied to grow organic proton conducting salts,imidazole-succinic acid(C_(3)H_(4)N_(2)-HOOC(CH_(2))_(2)COOH)and imidazole-glutaric acid(C_(3)H_(4)N_(2)-HOOC(CH_(2))_(3)COOH).This synthesis method induces crystallization and provides the phase-pure compounds.The compounds exhibit different electric conducting behavior and activation energies Ea compared with the reported single crystals obtained from the solution method.The difference in conducting property can be related to intrinsic defects and structural disorder introduced by mechanochemical grinding,indicating that the mechanochemical method bears strong capability for tuning conductivities.Moreover,complete deuteration of the organic salts is achieved by the method.The mechanochemical synthesis of organic salts also holds high potential for the actual industrialized large-scale production.展开更多
基金Financially supported by the National Natural Science Foundation of China (20773130, 20803080)973 Program (2009CB939801)the "Key Project from Fujian Institute" (SZD07004)
文摘Well defined BiOI nanolamellas and BiSI nanorods have been synthesized by a solventless method. The phase identity, morphology, growth orientation, and conversion from lamella to rod have been investigated. Several experimental facts suggest that the growth orientations of BiOI nanolamellas and BiSI nanorods are guided by their corresponding crystal structure motifs. The optical band gaps of BiOI and BiSI are measured to be 1.97 and 1.61 eV, and the visible light photocatalytic activity of BiOI lamellas is primarily measured.
基金support of the National Natural Science Foundation of China(No.12005243,22205239,U1930102 and 11805034)Guangdong Basic and Applied Basic Research Foundation(No.2022B1515120014 and 2022A1515110210)+1 种基金China Postdoctoral Science Foundation(No.2022M721906 and 2022M721909)The neutron diffraction experiments were carried out under the fast-track proposal at Australian Nuclear Science and Technology Organisation(ANSTO)and the general user program(No.P1622061700003)at China Spallation Neutron Source(CSNS).
文摘Solventless mechanochemical synthesis by manual grinding was applied to grow organic proton conducting salts,imidazole-succinic acid(C_(3)H_(4)N_(2)-HOOC(CH_(2))_(2)COOH)and imidazole-glutaric acid(C_(3)H_(4)N_(2)-HOOC(CH_(2))_(3)COOH).This synthesis method induces crystallization and provides the phase-pure compounds.The compounds exhibit different electric conducting behavior and activation energies Ea compared with the reported single crystals obtained from the solution method.The difference in conducting property can be related to intrinsic defects and structural disorder introduced by mechanochemical grinding,indicating that the mechanochemical method bears strong capability for tuning conductivities.Moreover,complete deuteration of the organic salts is achieved by the method.The mechanochemical synthesis of organic salts also holds high potential for the actual industrialized large-scale production.
