A New Compound Pt3Bi2S2 with Superior Performance for Hydrogen Evolution Reaction

2021 ◽  
Author(s):  
Fu Qiang Huang ◽  
Yuqiang Fang ◽  
Shishun Wang ◽  
Gaoxin Lin ◽  
Xin Wang
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Clean Energy ◽  
Superior Performance ◽  
Type Compound

The exploration of efficient electrocatalysts for hydrogen evolution reaction (HER) is beneficial to obtain renewable clean energy. Herein, a new parkerite-type compound Pt3Bi2S2 was synthesized, which is constructed by [PtBi4S2]...

Controllable synthesis of Mo2C with different morphology and application to electrocatalytic hydrogen evolution reaction

2021 ◽  
Author(s):  
He-qiang Chang ◽  
Guo-Hua Zhang ◽  
Kuo-Chih Chou
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Structural Design ◽  
Superior Performance ◽  
Controllable Synthesis ◽  
Nitridation Reaction ◽  
Special Surface ◽  
One Step ◽  
The One ◽  
Insight Into

Abstract In order to evaluate the effect of precursors and synthesis strategies on catalytic ability of Mo2C in the hydrogen evolution reaction (HER), four kinds of Mo2C were synthesized using two kinds of MoO3 by two strategies. Compared with the one-step direct carbonization strategy, Mo2C with a large special surface area and a better performance could be synthesized by the two-step strategy composed of a nitridation reaction and a carbonization reaction. Additionally, the as-prepared porous Mo2C nanobelts (NBs) exhibit good electrocatalytic performance with a small overpotential of 165 mV (0.5 M H2SO4) and 124 mV (1 M KOH) at 10 mA cm-2, as well as a Tafel slope of 58 mV dec-1 (0.5 M H2SO4) and 59 mV dec-1 (1 M KOH). The excellent catalytic activity is ascribed to the nano crystallites and porous structure. What’s more, the belt structure also facilitates the charge transport in the materials during the electrocatalytic HER process. Therefore, the two-step strategy provides a new insight into the structural design with superior performance for electrocatalytic HER.

Inserting Co and P into MoS2 photocathodes: enhancing hydrogen evolution reaction catalytic performance by activating edges and basal planes with sulfur vacancies

2020 ◽  
Vol 10 (20) ◽  
pp. 6902-6909
Author(s):  
Karthika Pichaimuthu ◽  
Anirudha Jena ◽  
Ho Chang ◽  
Chaochin Su ◽  
Ru-Shi Liu
Keyword(s):  
Solar Energy ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Clean Energy ◽  
Catalytic Performance ◽  
Effective Technique ◽  
Energy Needs ◽  
Production Of Hydrogen

The production of hydrogen using solar energy via a photoelectrochemical system is an effective technique for meeting present clean energy needs.

scholarly journals Rapid Synthesis of Nickel Boride/Graphene by Microwave Thermal Shock and its Application in Hydrogen Evolution Reaction

2022 ◽  
Vol 2160 (1) ◽  
pp. 012007
Author(s):  
Shuai Wang ◽  
Rui Zhao ◽  
Weidong Xue
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Current Density ◽  
Synergetic Effect ◽  
Specific Area ◽  
Clean Energy ◽  
Alkaline Media ◽  
Promising Candidate ◽  
Active Centre ◽  
Metal Borides

Abstract The urgent demand for sustainable and clean energy has promoted the development of water splitting. Herein, metal borides assisted synthesis of graphene-based material (Ni-B/G) has been carried out by facile and fast microwave heating method and applied to hydrogen evolution reaction (HER) in alkaline solution. The Ni-B combining with 2D graphene give rise to highly efficient HER performance with low overpotential of 187 mV at current density of 10 mA cm−2. In addition, it exhibits good stability and retains 76% of current density after continuous oxygen release. The excellent performance is ascribed to the synergetic effect of Ni-B and graphene. The Ni-B not only acts as initiator to adsorb microwave energy but also works as active centre of catalyst. The high conductivity and large specific area of graphene offer accessible contact between electrolyte and intermediates. Therefore, Ni-B/G indicates a promising candidate for HER in alkaline media.

scholarly journals Nickel Phosphide Electrocatalysts for Hydrogen Evolution Reaction

Catalysts ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 188 ◽  
Author(s):  
Cun Hu ◽  
Chao Lv ◽  
Shuai Liu ◽  
Yan Shi ◽  
Jiangfeng Song ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Preparation Method ◽  
Clean Energy ◽  
High Energy ◽  
Nickel Phosphide ◽  
Hydrogen Energy ◽  
Practical Applications ◽  
Nickel Phosphides ◽  
Production Of Hydrogen

The production of hydrogen through electrochemical water splitting driven by clean energy becomes a sustainable route for utilization of hydrogen energy, while an efficient hydrogen evolution reaction (HER) electrocatalyst is required to achieve a high energy conversion efficiency. Nickel phosphides have been widely explored for electrocatalytic HER due to their unique electronic properties, efficient electrocatalytic performance, and a superior anti-corrosion feature. However, the HER activities of nickel phosphide electrocatalysts are still low for practical applications in electrolyzers, and further studies are necessary. Therefore, at the current stage, a specific comprehensive review is necessary to focus on the progresses of the nickel phosphide electrocatalysts. This review focuses on the developments of preparation approaches of nickel phosphides for HER, including a mechanism of HER, properties of nickel phosphides, and preparation and electrocatalytic HER performances of nickel phosphides. The progresses of the preparation and HER activities of the nickel phosphide electrocatalysts are mainly discussed by classification of the preparation method. The comparative surveys of their HER activities are made in terms of experimental metrics of overpotential at a certain current density and Tafel slope together with the preparation method. The remaining challenges and perspectives of the future development of nickel phosphide electrocatalysts for HER are also proposed.

2D Coordination Polymer-derived CoSe2-NiSe2/CN nanosheets: Dual-phase synergistic effect and ultrathin structure to enhance the hydrogen evolution reaction

2021 ◽  
Author(s):  
Weifeng Jiang ◽  
Jianpeng Sun ◽  
Kebin Lu ◽  
Chuanhai Jiang ◽  
Huakai Xu ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Synergistic Effect ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Hydrogen Evolution Reaction ◽  
Cost Effective ◽  
Clean Energy ◽  
Dual Phase ◽  
Effective Synthesis ◽  
Effective Hydrogen

The evolution of cost-effective hydrogen evolution reaction (HER) electrocatalysts is of great significance for the development of clean energy. Exploring effective synthesis strategies to optimize the performance of non-noble metal...

Superior performance of borocarbonitrides, BxCyNz, as stable, low-cost metal-free electrocatalysts for the hydrogen evolution reaction

2016 ◽  
Vol 9 (1) ◽  
pp. 95-101 ◽  
Author(s):  
Manjeet Chhetri ◽  
Somak Maitra ◽  
Himanshu Chakraborty ◽  
Umesh V. Waghmare ◽  
C. N. R. Rao
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Low Cost ◽  
Superior Performance ◽  
Metal Free

We report superior hydrogen evolution activity of metal-free borocarbonitride (BCN) catalysts.

High-throughput theoretical optimization of the hydrogen evolution reaction on MXenes by transition metal modification

2018 ◽  
Vol 6 (10) ◽  
pp. 4271-4278 ◽  
Author(s):  
Pengkun Li ◽  
Jinguo Zhu ◽  
Albertus D. Handoko ◽  
Ruifeng Zhang ◽  
Haotian Wang ◽  
...  
Keyword(s):  
Energy Source ◽  
Transition Metal ◽  
Hydrogen Evolution ◽  
High Throughput ◽  
Hydrogen Evolution Reaction ◽  
Clean Energy ◽  
Clean Energy Source ◽  
Chemical Feedstock

Electrocatalysis has the potential to become a more sustainable approach to generate hydrogen as a clean energy source and chemical feedstock.

scholarly journals Smart Designs of Mo Based Electrocatalysts for Hydrogen Evolution Reaction

Catalysts ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 2
Author(s):  
Xingyuan Gao ◽  
Huilin Deng ◽  
Qiuping Dai ◽  
Quanlong Zeng ◽  
Shuxian Qiu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Low Cost ◽  
Clean Energy ◽  
Heteroatom Doping ◽  
Promising Alternative ◽  
Noble Metal Catalysts ◽  
Clean Energy Source ◽  
Catalytic Performances

As a sustainable and clean energy source, hydrogen can be generated by electrolytic water splitting (i.e., a hydrogen evolution reaction, HER). Compared with conventional noble metal catalysts (e.g., Pt), Mo based materials have been deemed as a promising alternative, with a relatively low cost and comparable catalytic performances. In this review, we demonstrate a comprehensive summary of various Mo based materials, such as MoO2, MoS2 and Mo2C. Moreover, state of the art designs of the catalyst structures are presented, to improve the activity and stability for hydrogen evolution, including Mo based carbon composites, heteroatom doping and heterostructure construction. The structure–performance relationships relating to the number of active sites, electron/ion conductivity, H/H2O binding and activation energy, as well as hydrophilicity, are discussed in depth. Finally, conclusive remarks and future works are proposed.

3D Ordered Macroporous Copper Nitride-Titanium Oxynitrides as Highly Efficient Electrocatalysts for Universal-pH Hydrogen Evolution

2021 ◽  
Author(s):  
Yuchen Wu ◽  
Fanghua Ning ◽  
Zhiwei Wang ◽  
Ali Saad ◽  
Xiuting Li ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Efficiency ◽  
Clean Energy ◽  
Copper Nitride ◽  
Highly Efficient ◽  
Ordered Macroporous

Demanding for hydrogen for future clean energy has raised the research intense on developing non-noble high efficiency electrocatalysts for hydrogen evolution reaction (HER). In this study, we prepared a copper...

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