结构化学/Journal Chinese Journal of Structural ChemistryCSCD北大核心CSTPCDSCI
查看更多>>本刊是中国科学院主管，中国化学会、中国科学院福建物质结构研究所主办的学术性期刊。2006年改为纯英文版“Chinese Journal of Structural Chiemistry”。主要报道晶体学，量子化学，药物、材料和催化剂等领域物质性能与结构关系的文章。报道的内容涉及有机化学、无机化学、合成化学、结构化学、材料科学、药物化学、晶体学、理论化学等学科中的微观物质结构与性能关系的研究成果或阶段性成果。与此同时本刊也报道用谱学等物理方法解析物质结构、阐述物质结构与性能关系的论文。《结构化学》是中国自然科学核心期刊，中国科技论文引文数据库来源及统计源期刊。
查看更多>>摘要：Developing efficient bifunctional catalysts for urea oxidation reaction(UOR)/hydrogen evolution reaction(HER)is important for energy-saving hydrogen production.Herein,a catalyst with crystalline-amorphous hetero-structure supported by NiCo alloy on nickel foam(NiCoO-MoOx/NC)is reported for the first time.Through simple molybdenum salt etching,2D NiCo alloy nanosheets are transformed into a unique 3D cycad-leaf-like structure with a super-hydrophilic surface.Simultaneously,the synergistic effect between crystalline NiCoO and amor-phous MoOx improves the UOR and HER activity,merely requiring 1.28 V and-45 mV potentials to reach±10 mA cm-2,respectively.Particularly,the UOR kinetics of NiCoO-MoOx/NC is enhanced significantly compared to that of NiCoO/NC.The electronic structure of NiCoO is modified by MoOx,enabling the rapid generation of NiOOH and CoOOH active species,which would accelerate the synergistic electrocatalytic oxidation of urea molecules.This work inspires the design of highly active and stable bifunctional catalysts for urea assisted H2 production.
查看更多>>摘要：The sp2 carbon-conjugated covalent organic frameworks(COFs)with fully π-conjugated lattice and high chemical stability are promising heterogeneous photocatalysts.Herein,we report the design and synthesis of a novel palladium(Pd)porphyrin-based sp2 carbon-conjugated COF(PdPor-sp2c-COF)with an eclipsed AA stacking 2D structure.Interestingly,PdPor-sp2c-COF showed high crystallinity,good chemical stability,and a broad absorp-tion of visible light.Moreover,compared to our previously reported metal-free Por-sp2c-COF,PdPor-sp2c-COF displays an improved photocatalytic performance in the selective aerobic oxidation of sulfides under green light irradiation.The systematic mechanistic studies testified that the enhanced photocatalytic activity can be ascribed to promoting energy transfer pathway over PdPor-sp2c-COF.Our study clearly demonstrates that it is favorable to promote the energy transfer pathway in sp2 carbon-conjugated COFs by using metalloporphyrin-based molecular building blocks.This work will inspire us to design and synthesize novel photocatalysts based on COFs for the selective aerobic oxidation.
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