Coupled Biphase (1T-2H)-MoSe2 on Mold Spore Carbon for Advanced Hydrogen Evolution Reaction

doi:10.1002/smll.201901796

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	Coupled Biphase (1T-2H)-MoSe2 on Mold Spore Carbon for Advanced Hydrogen Evolution Reaction
	Deng, SJ ; Ai, CZ ; Luo, M ; Liu, B ; Zhang, Y ; Li, YH ; Lin, SW ; Pan, GX ; Xiong, QQ ; Liu, Q
刊名	SMALL
	2019
卷号	15 期号:30 页码:-
关键词	GENERALIZED GRADIENT APPROXIMATION ELECTROCATALYST SPECTROSCOPY PHASE
ISSN号	1613-6810
DOI	10.1002/smll.201901796
文献子类	期刊论文
英文摘要	Performance breakthrough of MoSe2-based hydrogen evolution reaction (HER) electrocatalysts largely relies on sophisticated phase modulation and judicious innovation on conductive matrix/support. In this work the controllable synthesis of phosphate ion (PO43-) intercalation induced-MoSe2 (P-MoSe2) nanosheets on N-doped mold spore carbon (N-MSC) forming P-MoSe2/N-MSC composite electrocatalysts is realized. Impressively, a novel conductive N-MSC matrix is constructed by a facile mold fermentation method. Furthermore, the phase of MoSe2 can be modulated by a simple phosphorization strategy to realize the conversion from 2H-MoSe2 to 1T-MoSe2 to produce biphase-coexisted (1T-2H)-MoSe2 by PO43- intercalation (namely, P-MoSe2), confirmed by synchrotron radiation technology and spherical aberration-corrected TEM (SACTEM). Notably, higher conductivity, lower bandgap and adsorption energy of H+ are verified for the P-MoSe2/N-MSC with the help of density functional theory (DFT) calculation. Benefiting from these unique advantages, the P-MoSe2/N-MSC composites show superior HER performance with a low Tafel slope (approximate to 51 mV dec(-1)) and overpotential (approximate to 126 mV at 10 mA cm(-1)) and excellent electrochemical stability, better than 2H-MoSe2/N-MSC and MoSe2/carbon nanosphere (MoSe2/CNS) counterparts. This work demonstrates a new kind of carbon material via biological cultivation, and simultaneously unravels the phase transformation mechanism of MoSe2 by PO43- intercalation.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32014]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Hainan Univ, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Hainan, Peoples R China; 2.Zhejiang Univ, State Key Lab Silicon Mat, Key Lab Adv Mat & Applicat Batteries Zhejiang Pr, Hangzhou 310027, Zhejiang, Peoples R China; 3.Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201210, Peoples R China; 5.Huzhou Univ, Dept Chem Mat, Huzhou 313000, Peoples R China; 6.Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China; 7.City Univ Hong Kong, Dept Phys, Kowloon, Hong Kong 999077, Peoples R China
推荐引用方式 GB/T 7714	Deng, SJ,Ai, CZ,Luo, M,et al. Coupled Biphase (1T-2H)-MoSe2 on Mold Spore Carbon for Advanced Hydrogen Evolution Reaction[J]. SMALL,2019,15(30):-.
APA	Deng, SJ.,Ai, CZ.,Luo, M.,Liu, B.,Zhang, Y.,...&Tu, JP.(2019).Coupled Biphase (1T-2H)-MoSe2 on Mold Spore Carbon for Advanced Hydrogen Evolution Reaction.SMALL,15(30),-.
MLA	Deng, SJ,et al."Coupled Biphase (1T-2H)-MoSe2 on Mold Spore Carbon for Advanced Hydrogen Evolution Reaction".SMALL 15.30(2019):-.