Synergistic Phase and Disorder Engineering in 1T-MoSe2 Nanosheets for Enhanced Hydrogen-Evolution Reaction

Advanced Materials
Ying YinSong Jin

Abstract

MoSe2 is a promising earth-abundant electrocatalyst for the hydrogen-evolution reaction (HER), even though it has received much less attention among the layered dichalcogenide (MX2 ) materials than MoS2 so far. Here, a novel hydrothermal-synthesis strategy is presented to achieve simultaneous and synergistic modulation of crystal phase and disorder in partially crystallized 1T-MoSe2 nanosheets to dramatically enhance their HER catalytic activity. Careful structural characterization and defect characterization using positron annihilation lifetime spectroscopy correlated with electrochemical measurements show that the formation of the 1T phase under a large excess of the NaBH4 reductant during synthesis can effectively improve the intrinsic activity and conductivity, and the disordered structure from a lower reaction temperature can provide abundant unsaturated defects as active sites. Such synergistic effects lead to superior HER catalytic activity with an overpotential of 152 mV versus reversible hydrogen electrode (RHE) for the electrocatalytic current density of j = -10 mA cm-2 , and a Tafel slope of 52 mV dec-1 . This work paves a new pathway for improving the catalytic activity of MoSe2 and generally MX2 -based electrocatal...Continue Reading

References

Jul 15, 1996·Physical Review. B, Condensed Matter·M AlataloR M Nieminen
Aug 18, 2004·Science·John A Turner
Oct 18, 2006·Proceedings of the National Academy of Sciences of the United States of America·Nathan S Lewis, Daniel G Nocera
Mar 17, 2011·Physical Review Letters·Yu LiuXiaolong Chen
Apr 23, 2011·Journal of the American Chemical Society·Yanguang LiHongjie Dai
Dec 5, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Anna IvanovskayaEric McFarland
Jun 15, 2013·Journal of the American Chemical Society·Eric J PopczunRaymond E Schaak
Jun 19, 2013·Chemical Reviews·Sophie CarencoClément Sanchez
Jun 25, 2013·Journal of the American Chemical Society·Mark A LukowskiSong Jin
Aug 29, 2013·Chemical Communications : Chem Comm·Wei-Fu ChenEtsuko Fujita
Nov 20, 2013·Proceedings of the National Academy of Sciences of the United States of America·Haotian WangYi Cui
Nov 21, 2013·Nano Letters·Damien VoiryManish Chhowalla
May 21, 2014·Advanced Materials·Phan Thi Kim LoanChang-Hsiao Chen
May 29, 2014·Physical Chemistry Chemical Physics : PCCP·Charlie TsaiJens K Nørskov
Jun 6, 2014·Journal of the American Chemical Society·Matthew S FaberSong Jin
Jul 30, 2014·Accounts of Chemical Research·Carlos G Morales-Guio, Xile Hu
Aug 5, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Suresh Kannan BalasingamYongseok Jun
Sep 15, 2015·Nature Materials·Miguel Cabán-AcevedoSong Jin

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Citations

Jul 20, 2017·ACS Applied Materials & Interfaces·Xinyi ChiaMartin Pumera
Jan 3, 2019·Angewandte Chemie·Wenzhuo WuQun Xu
May 18, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Bo LinZhanhu Guo
Jan 21, 2020·Advanced Materials·Nasir UddinZongyou Yin
Jun 27, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Daomeng LiuLingjie Meng
Mar 25, 2019·Nature Communications·Jianqi ZhuGuangyu Zhang
Feb 14, 2019·Nature Communications·Maria S SokolikovaCecilia Mattevi
Feb 12, 2020·Advanced Science·Zegao WangMingdong Dong
Nov 19, 2020·Nanotoxicology·Kaiwen LiXiangang Hu
Jul 6, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Weifeng JiangFangna Dai

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