P-doped CdS integrated with multiphasic MoSe2 nanosheets accomplishing prominent photocatalytic activity for hydrogen evolution

2021 ◽  
Author(s):  
Xuanxuan Yang ◽  
Hong Yang ◽  
Tiantian Zhang ◽  
Yongbing Lou ◽  
Jinxi Chen
Keyword(s):  
Photocatalytic Activity ◽  
Transition Metal ◽  
Hydrogen Evolution ◽  
Low Cost ◽  
Cds Nanorods

Rational modulation of low-cost and versatile Cd-based photocatalysts coupled with transition metal diselenides is favorable to reinforcing the performance of hydrogen evolution. Herein, the P-doped CdS nanorods (denoted as PCS)...

scholarly journals Comprehensive Evaluation of Transition Metal Doped Ni3N to Construct High-Efficiency Hydrogen Evolution Catalyst

2021 ◽  
Author(s):  
Meng Wang ◽  
Zepeng Lv ◽  
Xuewei Lv ◽  
Qian Li ◽  
Jie Dang
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Density Functional ◽  
Rational Design ◽  
Dft Calculation ◽  
High Efficiency ◽  
Comprehensive Evaluation ◽  
Low Cost ◽  
Alkaline Electrolyte ◽  
Metal Doped

Abstract Density functional theory (DFT) calculation indicators (ΔG, densities of state, D-band and bader charge) are commonly used to predict and analyze the hydrogen evolution reaction (HER) activity of catalysts, and most studies discuss only one or few of these indicators’ impact on catalysis, but still no report has comprehensively evaluated the influence of all these indicators on catalytic performance. Herein, foreseen by comprehensive consideration first, we report transition metal doped Ni3N nanosheets combined on Ni foam for utra-efficient alkaline hydrogen evolution. For dual transition metals doped Ni3N, Co,V-Ni3N exhibits remarkable HER performance with a significantly low overpotential of only 10 mV in alkaline electrolyte and 41 mV in alkaline seawater electrolyte at 10 mA cm− 2; while for single transition metal doped Ni3N, V-Ni3N exhibits the best performance with an overpotential of 15 mV and a Tafel slope of 37 mV dec− 1. Our work highlights the importance of comprehensive evaluation of DFT calculation indexes, and opens up a new method for the rational design of efficient and low-cost catalysts.

A Low-cost 2D WO3/Ni3S2 heterojunctions for highly stable hydrogen evolution

2021 ◽  
Author(s):  
Minmin Wang ◽  
Tongming Sun ◽  
Weiting Zhong ◽  
Mengke Zhang ◽  
Jin Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Tungsten Trioxide ◽  
Precious Metal ◽  
Low Cost ◽  
Metal Catalysts ◽  
Precious Metal Catalysts ◽  
Hydrogen Evolution Reactions

Transition metal-based nanohybrid has recently been demonstrated an electrocatalyst which show great potential to replace commercial precious metal catalysts in hydrogen evolution reactions. Herein, tungsten trioxide/nickel disulfide (WO3/Ni3S2) heterojunction is...

Enhanced photocatalytic hydrogen evolution over bimetallic zeolite imidazole framework-encapsulated CdS nanorods

2019 ◽  
Vol 48 (11) ◽  
pp. 3560-3565 ◽  
Author(s):  
Jia-Hui Zhao ◽  
Yanju Wang ◽  
Xiu Tang ◽  
Yu-Han Li ◽  
Fu-Tian Liu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Photocatalytic Hydrogen Evolution ◽  
Cds Nanorods ◽  
First Time

Through doping the Zn ion with the transition metal, this work fabricated the bimetallic ZnM-ZIF (M = Ni, Cu, Co) encapsulated CdS nanorod heterostructure for the first time.

scholarly journals Toward heterostructured transition metal hybrids with highly promoted electrochemical hydrogen evolution

RSC Advances ◽  
2019 ◽  
Vol 9 (35) ◽  
pp. 19924-19929 ◽  
Author(s):  
Guanhui Gao ◽  
Xiaobin Xie ◽  
Shendong Kang ◽  
Yanhua Lei ◽  
Achim Trampert ◽  
...  
Keyword(s):  
Transition Metal ◽  
Electrochemical Properties ◽  
Hydrogen Evolution ◽  
Low Cost ◽  
Transition Metal Dichalcogenide ◽  
Hydrothermal Approach ◽  
Metal Hybrids ◽  
Sustainable Transition

Low-cost and sustainable transition metal dichalcogenide heterostructures are developed via a hydrothermal approach, which could greatly promote their electrochemical properties for HER performance as electrocatalysts.

scholarly journals Electronic Structure Regulation on the Ultra-thin MOF-derived NiSe2/NiS2@NC Heterojunction for Promoting the Hydrogen Evolution Reaction

2022 ◽  
Author(s):  
Kebin Lu ◽  
Jianpeng Sun ◽  
Chuanhai Jiang ◽  
Huakai Xu ◽  
Fangna Dai ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Low Cost ◽  
Narrow Bandgap ◽  
Structure Regulation ◽  
Metal Selenides

Transition metal selenides (TMSes) is considered a promising electrocatalyst for hydrogen evolution reaction (HER) due to narrow bandgap, unique morphology and low cost. Herein, using Ni-MOF as precursor, NiSe2/NiS2@NC electrocatalyst...

scholarly journals Influence of Transition Metal on the Hydrogen Evolution Reaction over Nano-Molybdenum-Carbide Catalyst

Catalysts ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 294 ◽  
Author(s):  
Meng Chen ◽  
Yufei Ma ◽  
Yanqiang Zhou ◽  
Changqing Liu ◽  
Yanlin Qin ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Photoelectron Spectroscopy ◽  
Molybdenum Carbide ◽  
Low Cost ◽  
X Ray ◽  
Energy And Environment ◽  
Molybdenum Carbides ◽  
Metal Doped

The highly efficient electrochemical hydrogen evolution reaction (HER) provides a promising way to solve energy and environment problems. In this work, various transition metals (Fe, Co, Ni, Cu, Ag, and Pt) were selected to support on molybdenum carbides by a simple organic-inorganic precursor carburization process. X-ray diffraction (XRD) analysis results indicated that the β-Mo2C phase was formed in all metal-doped samples. X-ray photoelectron spectroscopy analysis indicated that the binding energy of Mo2+ species (Mo2C) shifted to a lower value after metal was doped on the molybdenum carbide surface. Comparing with pure β-Mo2C, the electrocatalytic activity for HER was improved by transition metal doping on the surface. Remarkably, the catalytic activity improvement was more obvious when Pt was doped on molybdenum carbide (2% Pt-Mo2C). The 2% Pt-Mo2C required a η10 of 79 mV, and outperformed that of pure β-Mo2C (η10 = 410 mV) and other transition metal doped molybdenum carbides, with a small Tafel slope (55 mV/dec) and a low onset overpotential (32 mV) in 0.5 M H2SO4. Also, the 2% Pt-Mo2C catalyst demonstrated a high stability for the HER in 0.5 M H2SO4. This work highlights a feasible strategy to explore efficient electrocatalysts with low cost via engineering on the composition and nanostructure.

Enhancement of hydrogen evolution activities of low-cost transition metal electrocatalysts in near-neutral strongly buffered aerobic media

2017 ◽  
Vol 83 ◽  
pp. 6-10 ◽  
Author(s):  
Arun Prasad Murthy ◽  
Jayaraman Theerthagiri ◽  
Jagannathan Madhavan ◽  
Kadarkarai Murugan
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Low Cost

Rational Design of Ni3S2 Nanosheets-Ag Nanorods on Ni Foam with Improved Hydrogen Adsorption Sites for Hydrogen Evolution Reaction

2021 ◽  
Author(s):  
Haijun Liu ◽  
Wen-Li Yu ◽  
Meng-Xuan Li ◽  
Shu-Yue Dou ◽  
Fu-Li Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hydrogen Bonds ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Rational Design ◽  
Hydrogen Adsorption ◽  
Low Cost ◽  
Metal Sulfides ◽  
Ni Foam ◽  
Adsorption Sites

Transition-metal sulfides (MxSy) have attracted keen interest as promising catalysts for hydrogen evolution reaction (HER) due to their low cost. However, the formation of sulfur-hydrogen bonds on MxSy (S-Hads) will...

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