Cost effective Mo rich Mo2C electrocatalysts for the hydrogen evolution reaction

2018 ◽  
Vol 6 (21) ◽  
pp. 10028-10035 ◽  
Author(s):  
Jie Dong ◽  
Qiang Wu ◽  
Cunping Huang ◽  
Weifeng Yao ◽  
Qunjie Xu
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Hydrogen Evolution Reaction ◽  
Water Electrolysis ◽  
Cost Effective ◽  
Synthetic Method ◽  
Highly Active

Mo rich Mo2C synthesized via a facile two-step synthetic method is potentially a highly active non-noble metal electrocatalyst for hydrogen production via water electrolysis.

General Fabrication of RuM (M=Ni, Co) Nanoclusters for Boosting Hydrogen Evolution Reaction Electrocatalysis

Nanoscale ◽  
2021 ◽  
Author(s):  
Mengyu Yuan ◽  
Cheng Wang ◽  
Yong Wang ◽  
Yuan Wang ◽  
Xiaomei Wang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Rational Design ◽  
Water Electrolysis ◽  
Highly Active

Rational design and fabrication of highly active electrocatalysts toward hydrogen evolution reaction (HER) is of paramount significance in the industrial hydrogen production via water electrolysis. Herein, by taking advantages of...

scholarly journals Crystalline/amorphous CoP@CoB hierarchical core-shell nanorod array for enhanced hydrogen evolution

2021 ◽  
Author(s):  
Peidong Shi ◽  
Yu Zhang ◽  
Guanglu Zhang ◽  
Xiaojuan Zhu ◽  
Shao-Hua Wang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Cost Effective ◽  
Nanorod Array ◽  
Core Shell ◽  
Highly Active ◽  
Electrochemical Water Splitting

Highly active, durable and cost-effective catalysts toward hydrogen evolution reaction (HER) are crucial for widespread use of electrochemical water splitting in hydrogen production. Herein, a hierarchical core-shell nanorod array comprising...

scholarly journals A Mini Review on Doped Nickel-Based Electrocatalysts for Hydrogen Evolution Reaction

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4651
Author(s):  
Yilin Deng ◽  
Wei Lai ◽  
Bin Xu
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Water Electrolysis ◽  
Energy Resources ◽  
Alkaline Media ◽  
Hydrogen Energy ◽  
Heteroatom Doping ◽  
Highly Active ◽  
Production Of Hydrogen

The energy crisis and environmental pollution have attracted much attention and have promoted researches on clean and sustainable hydrogen energy resources. With the help of highly active and stable transition metal nickel-based catalysts, the production of hydrogen from water electrolysis from electrolyzed water has become an inexpensive and efficient strategy for generating hydrogen energy. In recent years, heteroatom doping has been found to be an effective strategy to improve the electrocatalytic hydrogen evolution reaction (HER) performances of nickel-based catalysts in acidic, neutral, and alkaline media. This review will highlight many recent works of inexpensive and readily available heteroatom-doped nickel-based HER catalysts. The evaluation methods for the performances of HER catalyst will be briefly described, and the role of heteroatom doping and its application in nickel-based catalyst will be summarized. This article will also point out some heteroatom doping strategies, which may provide references and inspire the design of other catalysts with dopants.

Hierarchical Microsphere MOF Arrays with Ultralow Ir Doping for Efficient Hydrogen Evolution Coupled with Hydrazine Oxidation in Seawater

2021 ◽  
Author(s):  
Xuejun Zhai ◽  
Qingping Yu ◽  
Guishan Liu ◽  
Junlu Bi ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Water Electrolysis ◽  
Efficient Catalyst ◽  
Hydrazine Oxidation ◽  
Renewable Hydrogen

Hydrogen evolution reaction (HER) based on water electrolysis is promising for renewable hydrogen production. Limited by sluggish anodic oxygen evolution reaction (OER), rational fabrication of efficient catalyst for HER coupled...

scholarly journals WS(1−x)Sex Nanoparticles Decorated Three-Dimensional Graphene on Nickel Foam: A Robust and Highly Efficient Electrocatalyst for the Hydrogen Evolution Reaction

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 929 ◽  
Author(s):  
Sajjad Hussain ◽  
Kamran Akbar ◽  
Dhanasekaran Vikraman ◽  
Rana Afzal ◽  
Wooseok Song ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Large Scale ◽  
Nickel Foam ◽  
Transition Metal Dichalcogenides ◽  
Three Dimensional ◽  
Cost Effective ◽  
Highly Efficient ◽  
Highly Active ◽  
Earth Abundant

To find an effective alternative to scarce, high-cost noble platinum (Pt) electrocatalyst for hydrogen evolution reaction (HER), researchers are pursuing inexpensive and highly efficient materials as an electrocatalyst for large scale practical application. Layered transition metal dichalcogenides (TMDCs) are promising candidates for durable HER catalysts due to their cost-effective, highly active edges and Earth-abundant elements to replace Pt electrocatalysts. Herein, we design an active, stable earth-abundant TMDCs based catalyst, WS(1−x)Sex nanoparticles-decorated onto a 3D porous graphene/Ni foam. The WS(1−x)Sex/graphene/NF catalyst exhibits fast hydrogen evolution kinetics with a moderate overpotential of ~−93 mV to drive a current density of 10 mA cm−2, a small Tafel slope of ~51 mV dec−1, and a long cycling lifespan more than 20 h in 0.5 M sulfuric acid, which is much better than WS2/NF and WS2/graphene/NF catalysts. Our outcomes enabled a way to utilize the TMDCs decorated graphene and precious-metal-free electrocatalyst as mechanically robust and electrically conductive catalyst materials.

Rationally Designed Ta3N5@ReS2 Heterojunctions for Promoted Photocatalytic Hydrogen Production

2021 ◽  
Author(s):  
Xiaoqiang Zhan ◽  
Zhi Fang ◽  
Bing Li ◽  
Haitao Zhang ◽  
Leyao Xu ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Active ◽  
Adsorption Processes

Highly-active heterojunctions hold the pivotal function in photocatalytic hydrogen evolution reaction (HER). Herein, Ta3N5@ReS2 photocatalysts are rationally designed via the combination of template-assisted, hydrothermal and solution-adsorption processes, in which few...

In-Operando Insights on the Hydrogen Evolution Reaction Activity and Stability of Non-Noble Metal Electrocatalysts for Water Electrolysis

2020 ◽  
Vol MA2020-02 (38) ◽  
pp. 2403-2403
Author(s):  
Daniel Escalera López ◽  
Peter Holzapfel ◽  
Melanie Bühler ◽  
Florian Dominik Speck ◽  
Chuyen Van Pham ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Noble Metal ◽  
Hydrogen Evolution Reaction ◽  
Water Electrolysis ◽  
In Operando

Modulation of electronic structures in two-dimensional electrocatalysts for the hydrogen evolution reaction

2020 ◽  
Vol 56 (80) ◽  
pp. 11910-11930 ◽  
Author(s):  
Junfeng Xie ◽  
Jindi Qi ◽  
Fengcai Lei ◽  
Yi Xie
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electronic Structures ◽  
Water Electrolysis ◽  
Two Dimensional

The electrocatalytic hydrogen evolution reaction (HER) has attracted substantial attention owing to its important role in realizing economic and sustainable hydrogen production via water electrolysis.

Ternary PtVCo dendrites for the hydrogen evolution reaction, oxygen evolution reaction, overall water splitting and rechargeable Zn–air batteries

2018 ◽  
Vol 5 (10) ◽  
pp. 2425-2431 ◽  
Author(s):  
Zhaoqing Ding ◽  
Zhenghua Tang ◽  
Ligui Li ◽  
Kai Wang ◽  
Wen Wu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Cost Effective ◽  
Energy Sources ◽  
Overall Water Splitting ◽  
Highly Active ◽  
Air Battery

Designing a highly active, robust and cost-effective electrocatalyst with multiple functionalities toward overall water splitting and rechargeable Zn–air battery applications is crucial and urgent for the development of sustainable energy sources.

scholarly journals Revealing the effect of electrocatalytic performance boost during hydrogen evolution reaction on free-standing SWCNT film electrode

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Karolina Kordek-Khalil ◽  
Dawid Janas ◽  
Piotr Rutkowski
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Large Scale ◽  
Carbon Nanomaterials ◽  
Low Cost ◽  
High Surface ◽  
Water Electrolysis ◽  
Free Standing ◽  
Highly Active ◽  
Electrocatalytic Performance

AbstractLarge-scale sustainable hydrogen production by water electrolysis requires a highly active yet low-cost hydrogen evolution reaction (HER) electrocatalyst. Conductive carbon nanomaterials with high surface areas are promising candidates for this purpose. In this contribution, single-walled carbon nanotubes (SWCNTs) are assembled into free-standing films and directly used as HER electrodes. During the initial 20 h of electrocatalytic performance in galvanostatic conditions, the films undergo activation, which results in a gradual overpotential decrease to the value of 225 mV. Transient physicochemical properties of the films at various activation stages are characterized to reveal the material features responsible for the activity boost. Results indicate that partial oxidation of iron nanoparticles encapsulated in SWCNTs is the major contributor to the activity enhancement. Furthermore, besides high activity, the material, composed of only earth-abundant elements, possesses exceptional performance stability, with no activity loss for 200 h of galvanostatic performance at − 10 mA cm−2. In conclusion, the work presents the strategy of engineering a highly active HER electrode composed of widely available elements and provides new insights into the origins of electrocatalytic performance of SWCNT-based materials in alkaline HER.

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