Toward High-Performance and Low-Cost Hydrogen Evolution Reaction Electrocatalysts: Nanostructuring Cobalt Phosphide (CoP) Particles on Carbon Fiber Paper

2018 ◽  
Vol 10 (17) ◽  
pp. 14777-14785 ◽  
Author(s):  
Shu Hearn Yu ◽  
Daniel H. C. Chua
Keyword(s):  
Carbon Fiber ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Performance ◽  
Low Cost ◽  
Cobalt Phosphide ◽  
Carbon Fiber Paper

Hydrothermal Synthesis of NiCo2O4 Nanowires on Carbon Fiber Paper for Hydrogen Evolution Catalyst

2018 ◽  
Vol 775 ◽  
pp. 139-143 ◽  
Author(s):  
Luigi A. Dahonog ◽  
Mary Donnabelle L. Balela
Keyword(s):  
Hydrothermal Synthesis ◽  
Carbon Fiber ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Nanowire Arrays ◽  
Hydrothermal Time ◽  
Cathodic Current ◽  
Onset Potential ◽  
Nickel Cobaltite ◽  
Carbon Fiber Paper

Nickel cobaltite (NiCo2O4) nanowires were successfully grown on the surface of carbon fiber via hydrothermal treatment, followed by annealing. After 2 h, SEM revealed the formation of NiCo2O4 nanowire arrays on the surface of the carbon fiber paper. With increasing hydrothermal time from 2 to 12 h, the NiCo2O4 nanowires also self-assembled into urchin-like morphologies. When used as catalysts for hydrogen evolution reaction, the NiCo2O4 nanowires exhibit an onset potential for the cathodic current at-0.13 V vs. Ag/AgCl in 0.1 M KOH.

Composite electrocatalyst MoxW1-xS2 nanosheets on carbon fiber paper for highly efficient hydrogen evolution reaction

2018 ◽  
Vol 22 (10) ◽  
pp. 2969-2976 ◽  
Author(s):  
Qiangbin Yang ◽  
Yi He ◽  
Changjun Zou ◽  
Jizhuang Wang ◽  
Hongjie Li ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Highly Efficient ◽  
Carbon Fiber Paper

scholarly journals Surface Modifications of 2D-Ti3C2O2 by Nonmetal Doping for Obtaining High Hydrogen Evolution Reaction Activity: A Computational Approach

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 161
Author(s):  
Fangtao Li ◽  
Xiaoxu Wang ◽  
Rongming Wang
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
High Performance ◽  
Hydrogen Adsorption ◽  
Low Cost ◽  
Level Shift ◽  
High Hydrogen ◽  
Catalytic Active Sites

As a typical two-dimensional (2D) MXene, Ti3C2O2 has been considered as a potential material for high-performance hydrogen evolution reaction (HER) catalyst, due to its anticorrosion and hydrophilic surface. However, it is still a challenge to improve the Ti3C2O2 surficial HER catalytic activity. In this work, we investigated the HER activity of Ti3C2O2 after the surface was doped with S, Se, and Te by the first principles method. The results indicated that the HER activity of Ti3C2O2 is improved after being doped with S, Se, Te because the Gibbs free energy of hydrogen adsorption (ΔGH) is increased from −2.19 eV to 0.08 eV. Furthermore, we also found that the ΔGH of Ti3C2O2 increased from 0.182 eV to 0.08 eV with the doping concentration varied from 5.5% to 16.7%. The HER catalytic activity improvement of Ti3C2O2 is attributed to the local crystal structure distortion in catalytic active sites and Fermi level shift leads to the p-d orbital hybridization. Our results pave a new avenue for preparing a low-cost and high performance HER catalyst.

CoSe2 necklace-like nanowires supported by carbon fiber paper: a 3D integrated electrode for the hydrogen evolution reaction

2015 ◽  
Vol 3 (18) ◽  
pp. 9415-9420 ◽  
Author(s):  
Ke Wang ◽  
Dan Xi ◽  
Chongjian Zhou ◽  
Zhongqi Shi ◽  
Hongyan Xia ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Carbon Fiber Paper

Pyrite-type CoSe2 necklace-like nanowires (NWs) were successfully grown on carbon fiber paper (CFP) and proven to be an efficient electrocatalyst towards the hydrogen evolution reaction (HER).

MOF-aided topotactic transformation into nitrogen-doped porous Mo2C mesocrystals for upgrading the pH-universal hydrogen evolution reaction

2020 ◽  
Vol 8 (39) ◽  
pp. 20429-20435
Author(s):  
Tengteng Gu ◽  
Rongjian Sa ◽  
Linjie Zhang ◽  
Feng Zhou ◽  
Ruihu Wang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Excellent Performance ◽  
Nitrogen Doped ◽  
High Crystallinity ◽  
Carbon Fiber Paper ◽  
Topotactic Transformation ◽  
Transformation Strategy

A MOFs topotactic transformation strategy for synthesis of N-doped porous Mo2C mesocrystals on carbon fiber paper has been proposed. High crystallinity, porosity and no carbon residues make the hydrogen evolution reaction have excellent performance.

Hydrothermal synthesis of 3D hierarchical MoSe2/NiSe2 composite nanowires on carbon fiber paper and their enhanced electrocatalytic activity for the hydrogen evolution reaction

2017 ◽  
Vol 5 (37) ◽  
pp. 19752-19759 ◽  
Author(s):  
Long Zhang ◽  
Tao Wang ◽  
Lan Sun ◽  
Yunjin Sun ◽  
Tingwei Hu ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Carbon Fiber ◽  
Hydrogen Evolution ◽  
Hierarchical Structure ◽  
Hydrogen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Active Sites ◽  
Carbon Fiber Paper

A 3D hierarchical structure of MoSe2/NiSe2 exhibits superior HER activity because of more active sites and faster transfer of electrons.

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