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Bimetallic Ru-ni/TiO2 catalysts for hydrogenation of n-ethylcarbazole:Role of TiO2 crystal structure

Journal of Energy Chemistry 2020年第1期29卷 188-195,I0007页

作者： Hongen Yu Xue Yang Yong Wu Yanru Guo Shuan Li Wei Lin Xingguo Li Jie Zheng Beijing national Laboratory for Molecular Sciences(BnLMS) College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Sinopec Research Institute of Petroleum Processing Beijing 100083China

Hydrogenation of n-ethylcarbazole(nEC),the hydrogen lean form of a liquid organic hydrogen carrier,on TiO2 supported Ru-ni bimetallic catalysts is *** structure of TiO2 plays a critical role on the hydrogenation activity and selectivity towards fully hydrogenated ***/anatase catalyst exhibits higher selectivity but lower reactivity compared to Ru/rutile *** addition significantly promotes the performance of Ru/anatase catalyst while causes severe performance deterioration of Ru/rutile *** P25,a mixture of anatase and rutile phases in approximate ratio A/R1/4,is found to be the best TiO2 support for nEC ***/P25 catalyst outperforms both Ru/rutile and Ru/anatase and its activity can be further slightly improved by ni *** unexpected synergism between the two different TiO2 phases for Ru based nEC hydrogenation catalysts is related to metal-support interaction and Ru-ni interaction.

关键词： Liquid organic hydrogen carriers n-ethylcarbazole Hydrogenation Ru-ni

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nonstoichiometric Yttrium Hydride–Promoted Reversible Hydrogen Storage in a Liquid Organic Hydrogen Carrier

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CCS Chemistry 2021年第3期3卷 974-984页

作者： Yong Wu Yanru Guo Hongen Yu Xiaojing Jiang Yuxuan Zhang Yue Qi Kai Fu Lei Xie Guoling Li Jie Zheng Xingguo Li Beijing national Laboratory for Molecular Science(BnLMS) College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871 Sunan Institute for Molecular Engineering Peking UniversityNanjing 215500 College of Materials Science and Engineering Qingdao UniversityQingdao 266071

n-ethylcarbazole(nEC)is one of the most promising liquid organic hydrogen carriers(LOHCs),but its application is limited by sluggish kinetics due to lack of high-efficiency,low-cost *** work reports a cobalt(Co)-based catalyst promoted by nonstoichiometric yttrium hydride(YH_(3−x))to achieve high-efficiency,reversible hydrogen storage in nEC,with>5.5 wt%reversible hydrogen storage capacity could be achieved below 473 K,and with good *** YH_(3−x)-promoted Co-based catalyst is the first non-noble metal catalyst with high activity for nEC hydrogenation and 12H-nEC dehydrogenation reactions.A mechanistic study suggests that YH_(3−x)facilitates the reversible hydrogen transfer both in the hydrogenation and the dehydrogenation *** nonstoichiometric YH_(3−x)contained both lattice H and H vacancies with tunable H chemical potential serve as the H donor and H acceptor for reversible hydrogen *** results support the practical application of LOHCs and inspire new approaches for the utilization of conventional metal hydrides to promote versatile H transfer reactions.

关键词： hydrogen storage liquid organic hydrogen carriers n-ethylcarbazole rare-earth hydrides hydrogen transfer

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Colour tuning: Synthesis of 8-Hydroxyquinoline Derivatives

Colour tuning: Synthesis of 8-Hydroxyquinoline Derivatives

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中国化学会第九届全国应用化学年会

作者： Wang, Ting-Ting Xie,Yan Jing, Hui-Lian Yuan, Guo-Zan Ou -Yang, Xin-Hua Zhou, Ya-Dong Zeng, He-Ping (Institute of Functional Molecular, Faculty of Chemistry, South China University of Technology, Guangzhou 510641 China)

＜正＞An new light-emitting material, 2-（n-ethylcarbazolevinylene）-8- hydroxyquinoline （EHQ） was synthesized by Perkin addition. Photoluminescence light property indicated that the compound can be used as a kind of blue-green organic small molecules light-emitting materials. According to the synthesis way, many multilight-emitting materials can be gained.

关键词： 8-hydroxyquinaldine n-ethylcarbazole 2- (n-ethylcarbazolevinylene)-8-hydroxyquinoline Photoluminescence light

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