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Construction of Synergistic Co and Cu Diatomic Sites for Enhanced Higher Alcohol Synthesis

CCS Chemistry 2023年第4期5卷 851-864页

作者： Gaofeng Chen Olga A.Syzgantseva Maria A.Syzgantseva Shuliang Yang Guihua Yan Li Peng Changyan Cao Wenxing Chen Zhiwei Wang Fengjuan Qin Tingzhou Lei Xianhai Zeng Lu Lin Weiguo Song Buxing Han College of Energy Xiamen UniversityXiamen 361102 Department of Chemistry Lomonosov Moscow State UniversityMoscow 119991 Fujian engineering and research center of clean and High-Valued Technologies for Biomass Xiamen Key Laboratory of Clean and High-Valued Utilization for BiomassXiamen 361102 College of Chemistry and Chemical engineering Xiamen UniversityXiamen 361005 Beijing National Laboratory for Molecular Science CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190 University of Chinese Academy of Sciences Beijing 100049 Energy&Catalysis center School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081 School of Environmental engineering Henan University of TechnologyZhengzhou 450001 Institute of Urban and Rural mining Changzhou UniversityChangzhou 213164

Higher alcohol synthesis(HAS)from syngas could efficiently alleviate the dependence on the traditional fossil ***,it is still challenging to construct high-performance HAS catalysts with satisfying selectivity,space–time yield(STY),and ***,we designed a diatomic catalyst by anchoring Co and Cu sites onto a hierarchical porous N-doped carbon matrix(Co/Cu–N–C).The Co/Cu–N–C is efficient for HAS and is among the best catalysts *** a COconversion of 81.7%,C2+OHselectivity could reach 58.5%with an outstanding C2+OH STY of 851.8 mg/g·*** found that the N4–Co1 and Cu1–N4 showed an excellent synergistic *** adsorption of CO occurred on the Co site,and the surrounding nitrogen sites served as a hydrogen reservoir for the CO reduction reactions to form ***,the Cu sites stabilized a CHOCu species to interact with CHxCo,facilitating a barrier-free formation of C2 species,which is responsible for the high selectivity of higher alcohols.

关键词： dual atomic catalyst synergistic effect heterogeneous catalysis carbonmaterial higher alcohol synthesis

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International experience of carbon neutrality and prospects of key technologies:Lessons for China

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Petroleum Science 2023年第2期20卷 893-909页

作者： Zheng-Meng Hou Ying Xiong Jia-Shun Luo Yan-Li Fang Muhammad Haris Qian-Jun Chen Ye Yue Lin Wu Qi-Chen Wang Liang-Chao Huang Yi-Lin Guo Ya-Chen Xie Institute of Subsurface Energy Systems Clausthal University of TechnologyClausthal-Zellerfeld38678Germany School of Earth and Space Sciences Peking UniversityBeijing100871China State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu610500SichuanChina Sino-German Energy research center Sichuan UniversityChengdu610065SichuanChina Department of Petroleum&Gas engineering University of Engineering&Technology54890LahorePakistan Yunnan Key Lab.of Sino-German Blue mining and utilization of Special Underground Space Kunming650093YunnanChina Sino-German research Institute of Carbon Neutralization and Green Development Zhengzhou UniversityZhengzhou450000HenanChina State Key Laboratory of Geomechanics and Geotechnical engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan430071HubeiChina

Carbon neutrality(or climate neutrality)has been a global consensus,and international experience exchange is *** the differences in the degree of social development,resource endowment and technological level,each country should build a carbon-neutral plan based on its national *** with other major developed countries(e.g.,Germany,the United States and Japan),China's carbon neutrality has much bigger challenges,including a heavy and time-pressured carbon reduction task and the current energy structure that is over-dependent on fossil *** we provide a comprehensive review of the status and prospects of the key technologies for low-carbon,near-zero carbon,and negative carbon *** innovations associated with coal,oil-gas and hydrogen industries and their future potential in reducing carbon emissions are particularly explained and *** on integrated analysis of international experience from the world's major developed countries,in-depth knowledge of the current and future technologies,and China's energy and ecological resources potential,five lessons for the implementation of China's carbon neutrality are proposed:(1)transformation of energy production pattern from a coal-dominated pattern to a diversified renewable energy pattern;(2)renewable power-to-X and large-scale underground energy storage;(3)integration of green hydrogen production,storage,transport and utilization;(4)construction of clean energy systems based on smart sector coupling(ENSYSCO);(5)improvement of ecosystem carbon sinks both in nationwide forest land and potential desert in Northwest *** paper provides an international perspective for a better understanding of the challenges and opportunities of carbon neutrality in China,and can serve as a theoretical foundation for medium-long term carbon neutral policy formulation.

关键词： International experience Carbon reduction technologies Carbon neutrality Energy transition Underground energy storage Carbon capture,utilization and storage(CCUS)

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Flour-derived borocarbonitride enriched with boron-oxygen species for the oxidative dehydrogenation of propane to olefins

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Science China Chemistry 2023年第8期66卷 2389-2399页

作者： Dong Li Jingying Bi Zean Xie Lian Kong Bing Liu Xiaoqiang Fan Xia Xiao Yuxin Miao Zhen Zhao State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China Institute of Catalysis for Energy and Environment College of Chemistry and Chemical EngineeringShenyang Normal UniversityShenyang110034China Department of Chemical engineering School of Chemical and Material EngineeringJiangnan UniversityWuxi214122China

The preparation of porous materials by the simple and low-cost methods is one of the hot topics in materials ***,the porous carbon-incorporated BN(P-CBN)was synthesized from the low-cost flour by a fermentation combined with freezedrying technology and ammonolysis.P-CBN-x samples not only maintain the pores of the fermented dough,but also produce abundant oxygen-containing boron species(B-OH,O-O and B-O).Due to the unique structural advantages,P-CBN-x catalysts exhibit remarkably better catalytic performance than bulk BN for the oxidative dehydrogenation of propane(ODHP)to produce ***,P-CBN-23 obtains high C_(3)H_(8 )conversion of 62.1%and olefin yield of 42.7%.In-situ DRIFTS experiments and DFT calculations demonstrate the B-OO-B species in P-CBN-x framework is the most active species for the C3H8activation and the B-O…O-B species can be readily regenerated by O_(2),thus promoting the conversion of propane to olefin.

关键词： flour fermentation carbon-incorporated boron nitrides oxidative dehydrogenation propane

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Molten Salts Strategy for the Synthesis of CoP Nanoparticles Entrapped,N,P co-Doped Mesoporous Carbons as Electrocatalysts for Hydrogen Evolution

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Chemical research in Chinese Universities 2022年第1期38卷 237-242页

作者： XU Jing MIAO Sijia TANG Duihai ZHANG Wenting ZHAO Zhen QIAO Zhen-An Institute of Catalysis for Energy and Environment College of Chemistry and Chemical EngineeringShenyang Normal UniversityShenyang 110034P.R.China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012P.R.China

Amolten salt process was developed to prepare CoP nanoparticles(NPs) embedded, N,P co-doped carbons with the combination of hand milling and high temperature carbonization. The characterization results implied that the as-prepared samples possessed mesoporous structures. Moreover, the mass ratios of the precursors affected the crystalline structures and the porosities of the final electrocatalysts. The as-prepared catalysts exhibited excellent electrocatalytic performances towards hydrogen evolution reaction(HER) under acidic and alkaline conditions. The as-prepared samples were designed as GxMyCoz, where x, y and z meant the amounts of glucose, melamine and CoCl2, respectively. The optimum sample of G6.0M2.0Co5.0 showed the best HER property with a low onset overpotential and a small Tafel slope, as well as excellent electrocatalytic stability.

关键词： CoP nanoparticle Mesopore N P co-doped carbon Hydrogen evolution reaction Molten salt

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