Surface curvature-confined strategy to ultrasmall nickel-molybdenum sulfide nanoflakes for highly efficient deep hydrodesulfurization

作     者：Xin Kang Jiancong Liu Chungui Tian Dongxu Wang Yaorui Li Hongyan Zhang Xusheng Cheng Aiping Wu Honggang Fu Xin Kang;Jiancong Liu;Chungui Tian;Dongxu Wang;Yaorui Li;Hongyan Zhang;Xusheng Cheng;Aiping Wu;Honggang Fu

作者机构：Key Laboratory of Functional Inorganic Material ChemistryMinistry of Education of the People’s Republic of ChinaHeilongjiang UniversityHarbin150080China College of Nuclear Science and TechnologyHarbin Engineering University145 Nantong StreetHarbin150001China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2020年第13卷第3期

页      面：882-890页

核心收录：

学科分类：0808[工学-电气工程] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 070304[理学-物理化学(含∶化学物理)] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：This work was supported by the National Key R&D Program of China(No.2018YFE0201704) the National Natural Science Foundation of China(Nos.21631004,21801069,21571054,and 21901064) the Fundamental Research Funds for Central Universities(Nos.3072019CFJ1502 and RCYJTD201801) the University Program for Young Scholars with Creative Talents in Heilongjiang Province(No.UNPYSCT-2018013) Heilongjiang Provincial Postdoctoral Science Foundation(No.LBH-Z18232)and the Heilongjiang University Excellent Youth Foundation. 

主　　题：size-controlled synthesis ultrasmall two-dimensional(2D)catalysts zeolites surface curvature hydrodesulfurization 

摘      要：Size-controlled synthesis of two-dimensional(2D)catalysts with low stacking numbers and small nanoflake lengths is crucial for promoting the catalytic performance in diverse heterogeneous catalysis.Herein,we report a facile and general“surface curvature-confined synthesisstrategy to modulate the slab lengths and stacking numbers of 2D transition metal sulfides by controlling the strain induced by different surface curvature of supports.An efficient NiMo sulfide with shorter slab length(average 3.71 nm),less stacking number(1–2 layers)and more edge active sites is synthesized onto ZSM-5 zeolites with the average size of 100 nm,which shows superior kHDS value of dibenzothiophene(14.05×10^−7 mol/(g·s)),enhanced stability up to 80 h,and high direct desulfurization selectivity(95%).This design concept is also proved to be generally applicable to modulate the slab lengths and stacking numbers of other 2D catalysts such as MoS2 and WS2 nanoflakes,which shows great potentials for developing more ultrasmall 2D catalysts with controlled sizes and excellent catalytic activities.