The master and students of Xi'an Jianjian published academic results in the top international journals and authoritative journals, respectively

Author:Xi'an University of Architect Time:2022.08.30

Recently, Dr. Liu Hu, a young teacher Liu Hu of the New Materials and Structure of Shaanxi Province and Disaster and Mergence, and the School of Chemistry and Chemical Engineering of Xi'an University of Architecture and Technology, at the top international academic journal "Advanced Functional Materials" (Advanced Functional Materials, TOP Journal of the Chinese Academy of Sciences, IF: 19.924) Published the latest research results entitled "ASYMMETRIC Coordination of Single-Achieves Efficient Dehydrogenation Catalysis". The first and communication authors are Liu Hu, a young teacher of the School of Chemistry and Chemical Engineering of our school, and Xi'an University of Architecture and Technology is the first unit of the paper. "Advanced Functional Materials" is a top academic journal in the field of materials science and technology, and has an important international influence.

This study focused on scientific problems in hydrogen-making technology. Due to the high energy density of hydrogen (1.77 kWh · L-1), non-toxic and pollution, and low cost, it is regarded as a best fossil energy substitute, which can effectively reduce fossils The pollution produced by fuel uses the "carbon neutral" strategic goal proposed by the Chinese government. Based on this, this study synthesizes the graphite carbon of the nano -wire network structure to anchor the single atomic cobalt position. Adjust the supporting characteristics of the single atomic cobalt position, optimize its electronic structure, reduce the energy barrier in the reaction process, and realize the high -efficiency dehydrogenation effect of the single atomic position of the beymmetric coordination.

The author proposes a new catalyst synthesis strategy to realize the asymmetry of the single atomic cobalt position, and obtains asymmetric cobalt monopoly sites as a new type of methampite hydrogenation catalyst. The efficient methampity is 20 times that of the dehydrogenation activity of the commercial PD/C and PT/C. Professor Huang Bolong of Hong Kong Polytechnic University and Professor Ma Zhenhui of Beijing University of Technology with a strong support and help for the theoretical calculation and catalyst structure representation of the work. This study can provide new theories and methods for the study of metal materials reasonably. Related catalytic research provides strong reference.

Recently, the "New Energy Materials" team in our school's "New Energy Materials" team's authoritative English journal "Chemical Engineering Journal" (Journal abbreviated Chem English, the latest influence is 16.744) online published entitled "Construction Double-SHELL structured N-C-in-Co/N-C electrocatalysts with nanorod- and rhombic dodecahedron-shaped hollow morphologies to boost electrocatalytic activity for hydrogen evolution and triiodide reduction reaction(构建纳米棒和菱形十二面体中空双壳结构碳基电催化剂以提升析氢Research papers for iodine restoration). Professor Yunsning is the only communication author of the paper, the first author is the doctoral student of our school, and the University of Xi'an University of Architecture and Technology is the first completion unit of the paper.

The paper proposes a strategy of MOF derivative nitrogen doped carbon catalyst that builds a hollow dual -shell structure. First control the appearance of the Zn-MOF through the cationic surfactant, and then use the diamond-shaped duodang body and the stick Zn-MOF as the template to grow CO-MOF on its surface. The catalyst N-C-IN-CO/N-C (RD-H-C and NR-H-C) of the diamond-shaped duodang and nano-rod. Among them, nano-rod NR-H-C shows good hydrogen analysis (HER) and iodine reduction (IRR) electrocatalytic activity and electrochemical stability. As an alkaline medium HER electrode, at 10 MA CM-2, its excessive potential is 123 MV, and the TAFEL slope is 51 MV DEC-1. When NR-H-C is used as an electrode, the solar cell obtains 8.51%photoelectric energy conversion efficiency.

Through a reasonable MOF-IN-MOF front-drive design, this work has obtained a hollow dual-shell structural electrical catalyst, which shows the enhanced HER and IRR catalytic properties, and achieves significant improvement of catalytic activity and stability. This work not only provides structural engineering design strategies for the construction of non -valuable metal electrical catalysts, but also opens up a new way for multi -functional applications of multi -component MOFS derivative carbon -based catalysts in the field of energy storage and conversion.

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