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Wang Guishuo Luo Ran Yang Chengsheng Song Jimin Xiong Chuanye Tian Hao Zhao Zhi-Jian Mu Rentao Gong Jinlong 《中国科学:化学(英文版)》2019,62(12):1710-1719
Science China Chemistry - Metal oxide-promoted Rh-based catalysts have been widely used for CO2 hydrogenation, especially for the ethanol synthesis. However, this reaction usually suffers low CO2... 相似文献
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Hydroxyl‐Mediated Non‐oxidative Propane Dehydrogenation over VOx/γ‐Al2O3 Catalysts with Improved Stability
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Dr. Zhi‐Jian Zhao Tengfang Wu Chuanye Xiong Guodong Sun Dr. Rentao Mu Dr. Liang Zeng Prof. Dr. Jinlong Gong 《Angewandte Chemie (International ed. in English)》2018,57(23):6791-6795
Supported vanadium oxides are one of the most promising alternative catalysts for propane dehydrogenation (PDH) and efforts have been made to improve its catalytic performance. However, unlike Pt‐based catalysts, the nature of the active site and surface structure of the supported vanadium catalysts under reductive reaction conditions still remain elusive. This paper describes the surface structure and the important role of surface‐bound hydroxyl groups on VOx / γ‐Al2O3 catalysts under reaction conditions employing in situ DRIFTS experiments and DFT calculations. It is shown that hydroxyl groups on the VOx /Al2O3 catalyst (V?OH) are produced under H2 pre‐reduction, and the catalytic performance for PDH is closely connected to the concentration of V?OH species on the catalyst. The hydroxyl groups are found to improve the catalyst that leads to better stability by suppressing the coke deposition. 相似文献
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Regularized dual gradient distributed method for constrained convex optimization over unbalanced directed graphs 总被引:1,自引:0,他引:1
Numerical Algorithms - This paper investigates a distributed optimization problem over a cooperative multi-agent time–varying network, where each agent has its own decision variables that... 相似文献
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