Mo-rich rGO–2H–MoSe2 nanocomposites with novel crystal growth plane of (106) for high hydrogen evolution reaction activity

2022 ◽  
Vol 142 ◽  
pp. 106475
Author(s):  
Samira Salehi ◽  
Mehdi Molaei ◽  
Masoud Karimipour
2019 ◽  
Vol 7 (28) ◽  
pp. 17046-17052 ◽  
Author(s):  
Sanjib Baran Roy ◽  
Sahng-Kyoon Jerng ◽  
Kamran Akbar ◽  
Jae Ho Jeon ◽  
Linh Truong ◽  
...  

Cobalt-encapsulating vertical graphene nano-hills exhibit high hydrogen evolution reaction activity because of the synergistic effects of curvature and doping.


2020 ◽  
Vol 11 (47) ◽  
pp. 12731-12736 ◽  
Author(s):  
Dongshuang Wu ◽  
Kohei Kusada ◽  
Tomokazu Yamamoto ◽  
Takaaki Toriyama ◽  
Syo Matsumura ◽  
...  

RuRhPdIrPt high-entropy-alloy nanoparticles with a broad and featureless valence band spectrum show high hydrogen evolution reaction activity.


2020 ◽  
Vol 22 (45) ◽  
pp. 26189-26199
Author(s):  
Huan Lou ◽  
Tong Yu ◽  
Jiani Ma ◽  
Shoutao Zhang ◽  
Aitor Bergara ◽  
...  

Two-dimensional Mo2C materials (1T and 2H phases) have emerged as promising electrocatalysts for the hydrogen evolution reaction (HER) due to their low cost, inherent metallicity, and high stability.


Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 161
Author(s):  
Fangtao Li ◽  
Xiaoxu Wang ◽  
Rongming Wang

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.


2019 ◽  
Vol 55 (96) ◽  
pp. 14406-14409 ◽  
Author(s):  
Peng Zhang ◽  
Huai-Guo Xue ◽  
Nian-Tzu Suen

Noble metals (e.g., Ru, Ir and Pt) or their derivatives exhibit very appealing activity toward the hydrogen evolution reaction (HER), but their high price and low reserves impede their wide use.


2021 ◽  
Vol 5 (5) ◽  
pp. 2247-2254
Author(s):  
Ling Bai ◽  
Zhiqiang Zheng ◽  
Zhongqiang Wang ◽  
Feng He ◽  
Yurui Xue ◽  
...  

3D acetylenic bonds distributing makes tetraphenyl methane substitute graphdiyne (TPM-GDY) show more active sites and high hydrogen evolution reaction performance.


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