Active basal plane catalytic activity and conductivity in Zn doped MoS2 nanosheets for efficient hydrogen evolution

2018 ◽  
Vol 260 ◽  
pp. 24-30 ◽  
Author(s):  
Peitao Liu ◽  
Jingyi Zhu ◽  
Jingyan Zhang ◽  
Kun Tao ◽  
Daqiang Gao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Basal Plane ◽  
Mos2 Nanosheets

Hydrazine-assisted formation of ultrathin MoS2 nanosheets for enhancing their co-catalytic activity in photocatalytic hydrogen evolution

2017 ◽  
Vol 5 (15) ◽  
pp. 6981-6991 ◽  
Author(s):  
D. Amaranatha Reddy ◽  
Hanbit Park ◽  
Sangyeob Hong ◽  
D. Praveen Kumar ◽  
Tae Kyu Kim
Keyword(s):  
Electrical Conductivity ◽  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Active Sites ◽  
Mos2 Nanosheets ◽  
Photocatalytic Hydrogen Evolution ◽  
Ultrathin Mos2 Nanosheets

This work demonstrates a simple and effective approach using hydrazine to modulate the active sites and electrical conductivity of MoS2 with the aid of ultrasonication.

Dual-Functional N Dopants in Edges and Basal Plane of MoS2 Nanosheets Toward Efficient and Durable Hydrogen Evolution

2016 ◽  
Vol 7 (7) ◽  
pp. 1602086 ◽  
Author(s):  
Wen Xiao ◽  
Peitao Liu ◽  
Jingyan Zhang ◽  
Wendong Song ◽  
Yuan Ping Feng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Basal Plane ◽  
Mos2 Nanosheets ◽  
Dual Functional

Transition metal doping activated basal-plane catalytic activity of two-dimensional 1T’-ReS2 for hydrogen evolution reaction: a first-principles calculation study

Nanoscale ◽  
2019 ◽  
Vol 11 (21) ◽  
pp. 10402-10409 ◽  
Author(s):  
Jing Pan ◽  
Rui Wang ◽  
Xiaoyong Xu ◽  
Jingguo Hu ◽  
Liang Ma
Keyword(s):  
Catalytic Activity ◽  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
First Principles ◽  
Basal Plane ◽  
First Principles Calculation ◽  
Transition Metal Doping ◽  
Two Dimensional ◽  
Cr Doping

Non-noble transition metals Mo and Cr doping greatly enhances the basal-plane catalytic activity of two-dimensional 1T′-ReS2 for hydrogen evolution reaction as comparable with those of Pt-doping.

scholarly journals Basal-Plane Catalytic Activity of Layered Metallic Transition Metal Ditellurides for the Hydrogen Evolution Reaction

2020 ◽  
Vol 10 (9) ◽  
pp. 3087 ◽  
Author(s):  
Hagyeong Kwon ◽  
Dongyeon Bae ◽  
Hyeyoung Jun ◽  
Byungdo Ji ◽  
Dongyeun Won ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Basal Plane ◽  
Transition Metal Dichalcogenides ◽  
Charge Transfer Resistance ◽  
Transfer Resistance ◽  
Metal Dichalcogenides ◽  
Turn Over Frequency

We report the electrochemical hydrogen evolution reaction (HER) of two-dimensional metallic transition metal dichalcogenides (TMDs). TMTe2 (TM: Mo, W, and V) single crystals were synthesized and characterized by optical microscopy, X-ray diffraction, and electrochemical measurements. We found that TMTe2 acts as a HER-active catalyst due to the inherent catalytic activity of its basal planes. Among the three metallic TMTe2, VTe2 shows the best HER performance with an overpotential of 441 mV and a Tafel slope of 70 mV/dec. It is 668 mV and 137 mV/dec for MoTe2 and 692 mV and 169 mV/dec for WTe2. Even though VTe2 has the lowest values in the exchange current density, the active site density, and turn-over-frequency (TOF) among the three TMTe2, the lowest charge transfer resistance (RCT) of VTe2 seems to be critical to achieving the best HER performance. First-principles calculations revealed that the basal-plane-active HER performance of metallic TMDs can be further enhanced with some Te vacancies. Our study paves the way to further study of the inherent catalytic activity of metallic 2D materials for active hydrogen production.

scholarly journals Electrochemical maps and movies of the hydrogen evolution reaction on natural crystals of molybdenite (MoS2): basal vs. edge plane activity

2017 ◽  
Vol 8 (9) ◽  
pp. 6583-6593 ◽  
Author(s):  
Cameron L. Bentley ◽  
Minkyung Kang ◽  
Faduma M. Maddar ◽  
Fengwang Li ◽  
Marc Walker ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Basal Plane ◽  
Spatially Resolved ◽  
Voltammetric Measurements

In this work, we report the first spatially-resolved voltammetric measurements of the hydrogen evolution reaction on natural crystals of molybdenite, unequivocally demonstrating enhanced catalytic activity on the edge plane relative to the basal plane.

Intercalated complexes of 1T′-MoS2 nanosheets with alkylated phenylenediamines as excellent catalysts for electrochemical hydrogen evolution

2019 ◽  
Vol 7 (5) ◽  
pp. 2334-2343 ◽  
Author(s):  
In Hye Kwak ◽  
Ik Seon Kwon ◽  
Hafiz Ghulam Abbas ◽  
Jaemin Seo ◽  
Gabin Jung ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
First Principles ◽  
Two Dimensional ◽  
First Principles Calculations ◽  
Mos2 Nanosheets

Two-dimensional 1T′ phase MoS2 that was intercalated with a series of alkylated p-phenylenediamines exhibits excellent catalytic activity toward hydrogen evolution reaction, supported by first-principles calculations.

Tuning the catalytic activity of heterogeneous two-dimensional transition metal dichalcogenides for hydrogen evolution

2018 ◽  
Vol 6 (41) ◽  
pp. 20005-20014 ◽  
Author(s):  
Seung Hyo Noh ◽  
Jeemin Hwang ◽  
Joonhee Kang ◽  
Min Ho Seo ◽  
Daehyeon Choi ◽  
...  
Keyword(s):  
Big Data ◽  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Basal Plane ◽  
Active Sites ◽  
Catalytic Properties ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Metal Dichalcogenides

This study establishes big data for the catalytic properties of two-dimensional metal-dichalcogenides (2D-TMDs) toward the hydrogen evolution reaction (HER). In addition to conventionally known active sites of edges, it proposes that terrace sites (or the basal plane) can be substantially activated for the HER.

scholarly journals Modulation of Hydrogen Evolution Catalytic Activity of Basal Plane in Monolayer Platinum and Palladium Dichalcogenides

ACS Omega ◽  
2018 ◽  
Vol 3 (8) ◽  
pp. 10058-10065 ◽  
Author(s):  
Haihua Huang ◽  
Xiaofeng Fan ◽  
David J. Singh ◽  
Weitao Zheng
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Basal Plane
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