Phase-Controlled Synthesis of 2H/3R-MoSe2 Nanosheets on P-Doped Carbon for Synergistic Hydrogen Evolution

Chen, Lunfeng1; Feng, Hanghang1; Zhang, Rui1; Wang, Suhang1; Zhang, Xueyan1; Wei, Zhijie1; Zhu, Yuanmin2; Gu, Meng2; Zhao, Chenyang1

2020-07-24

10.1021/acsanm.0c00988

ACS Applied Nano Materials   影响因子和分区

2574-0970

The nanoscale structure of catalysts has a profound influence on their physicochemical properties. However, the controlled synthesis of desired highly active microstructures is still challenging. In this work, through the introduction of phytic acid (PA), MoSe2 nanosheets with 2H/3R heterophases are successfully synthesized on a P-doped carbon substrate. Plenty of defects are introduced into the basal plane of MoSe2 with largely expanded interlayer spacings, which increase the number of active sites and enhance the electronic/ionic transport and mass transfer. Benefiting from these structure merits, the obtained heterostructure exhibits superior HER activity and durability. A low overpotential of 164 mV is observed at a current density of 10 mA cm(-2) with a Tafel slope of 44 mV dec(-1). The HER performance is well maintained even after 10 h tests, showing superior electrochemical robustness. This controlled synthesis 2H/3R heterophased MoSe2 can be extended to other transitional metal chalcogenides (TMDs) for diverse applications.

molybdenum selenide MOSE2 NANOSHEETS 2H/3R phase EFFICIENT ELECTROCATALYSTS phosphorous doped carbon HYBRID hydrogen evolution reaction 2H density functional theory PERFORMANCE STORAGE WS2 1T

SCI ; EI

英语

其他

National Natural Science Foundation of China[51904191][21704066] ; Foundation for Distinguished Young Talents in Higher Education of Guangdong[2016KQNCX147] ; Natural Science Foundation of Guangdong province[2018A030310499]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000555518200035

AMER CHEMICAL SOC

20203809209042

Carbon ; Molybdenum compounds ; Inorganic compounds ; Mass transfer ; Selenium compounds ; Phosphorus ; Physicochemical properties

Mass Transfer:641.3 ; Physical Chemistry:801.4 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Probability Theory:922.1 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4

Web of Science

1.Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518071, Peoples R China;
2.Southern Univ Sci & Technol China, Dept Mat Sci & Engn, Shenzhen 518071, Peoples R China

Chen, Lunfeng,Feng, Hanghang,Zhang, Rui,et al. Phase-Controlled Synthesis of 2H/3R-MoSe2 Nanosheets on P-Doped Carbon for Synergistic Hydrogen Evolution[J]. ACS Applied Nano Materials,2020,3(7):6516-6523.

Chen, Lunfeng.,Feng, Hanghang.,Zhang, Rui.,Wang, Suhang.,Zhang, Xueyan.,...&Zhao, Chenyang.(2020).Phase-Controlled Synthesis of 2H/3R-MoSe2 Nanosheets on P-Doped Carbon for Synergistic Hydrogen Evolution.ACS Applied Nano Materials,3(7),6516-6523.

Chen, Lunfeng,et al."Phase-Controlled Synthesis of 2H/3R-MoSe2 Nanosheets on P-Doped Carbon for Synergistic Hydrogen Evolution".ACS Applied Nano Materials 3.7(2020):6516-6523.