Highly Active Sites in Quaternary LnPdAsO (Ln = La, Ce, Pr) with Excellent Catalytic Activity for Hydrogen Evolution Reaction

2021 ◽  
Author(s):  
Xu Chen ◽  
Jiangang Guo ◽  
Jun Deng ◽  
Ran Wang ◽  
Shijing Zhao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Highly Active

Ultrathin molybdenum disulfide/carbon nitride nanosheets with abundant active sites for enhanced hydrogen evolution

Nanoscale ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 1766-1773 ◽  
Author(s):  
Xingyue Qian ◽  
Junfei Ding ◽  
Jianli Zhang ◽  
Yue Zhang ◽  
Yining Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Molybdenum Disulfide ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Carbon Nitride ◽  
Carbon Nitride Nanosheets

The molybdenum disulfide/carbon nitride (MoS2/C3N4-3) nanosheets with ultrathin thickness present superior catalytic activity for hydrogen evolution reaction for water splitting.

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.

Active Sites Implanted Carbon Cages in Core–Shell Architecture: Highly Active and Durable Electrocatalyst for Hydrogen Evolution Reaction

ACS Nano ◽  
2015 ◽  
Vol 10 (1) ◽  
pp. 684-694 ◽  
Author(s):  
Huabin Zhang ◽  
Zuju Ma ◽  
Jingjing Duan ◽  
Huimin Liu ◽  
Guigao Liu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Core Shell ◽  
Highly Active

Cobalt phosphosulfide in the tetragonal phase: a highly active and durable catalyst for the hydrogen evolution reaction

2018 ◽  
Vol 6 (26) ◽  
pp. 12353-12360 ◽  
Author(s):  
Jinfa Chang ◽  
Yixin Ouyang ◽  
Junjie Ge ◽  
Jinlan Wang ◽  
Changpeng Liu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Tetragonal Phase ◽  
Electrochemical Energy Storage ◽  
Alkaline Solutions ◽  
Energy Storage And Conversion ◽  
Promising Alternative ◽  
Highly Active ◽  
Cobalt Phosphosulfide

Sea urchin-like ternary cobalt phosphosulfide nanoneedles in the tetragonal phase were developed. This efficient and robust material exhibits superior hydrogen evolution reaction catalytic activity and durability in both acidic and alkaline solutions, and represents the most promising alternative to a platinum-based catalyst for use in electrochemical energy storage and conversion, and other applications.

Ruthenium Nanoparticles Supported on S-doped Graphene as an Efficient HER Electrocatalyst

2021 ◽  
Author(s):  
Hai-Lang Jia ◽  
Cheng-Lin Guo ◽  
Rui-Xin Chen ◽  
Jiao Zhao ◽  
Rui Liu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Purity ◽  
Ruthenium Nanoparticles ◽  
Highly Active ◽  
Doped Graphene

The development of highly active HER catalyst is of great significance for the preparation of high-purity green hydrogen. Although Pt has the best catalytic activity for hydrogen evolution reaction, its...

Facet-controlled hollow Rh2S3 hexagonal nanoprisms as highly active and structurally robust catalysts toward hydrogen evolution reaction

2016 ◽  
Vol 9 (3) ◽  
pp. 850-856 ◽  
Author(s):  
Donghwan Yoon ◽  
Bora Seo ◽  
Jaeyoung Lee ◽  
Kyoung Sik Nam ◽  
Byeongyoon Kim ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Core Shell ◽  
High Catalytic Activity ◽  
Highly Active ◽  
One Step ◽  
Very High ◽  
Excellent Stability

Hollow Rh2S3 hexagonal nanoprisms, prepared by one-step formation of core–shell nanoprisms followed by the etching of a core, exhibit very high catalytic activity and excellent stability toward hydrogen evolution reaction.

Highly active hydrogen evolution catalysis from metallic WS2 nanosheets

2014 ◽  
Vol 7 (8) ◽  
pp. 2608-2613 ◽  
Author(s):  
Mark A. Lukowski ◽  
Andrew S. Daniel ◽  
Caroline R. English ◽  
Fei Meng ◽  
Audrey Forticaux ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Chemical Vapour ◽  
Active Hydrogen ◽  
Highly Active ◽  
Ws2 Nanosheets

Metallic WS2 nanosheets chemically exfoliated from chemical vapour deposited WS2 nanostructures display excellent catalytic activity for the hydrogen evolution reaction.

scholarly journals Insertion of Platinum Nanoparticles into MoS2 Nanoflakes for Enhanced Hydrogen Evolution Reaction

Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1520 ◽  
Author(s):  
Dan Li ◽  
Yang Li ◽  
Bowei Zhang ◽  
Yu Lui ◽  
Sivaprasad Mooni ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Rational Design ◽  
Counter Electrode ◽  
Pt Nanoparticles ◽  
Stainless Steel Mesh ◽  
Binder Free

Pt as a chemical inert metal has been widely applied as the counter electrode in various electrochemical measurements. However, it can also be dissolved and redeposit to the working electrode under certain electrochemical circumstances. Herein we demonstrated a cyclic voltammetry (CV) cycling method to synthesize a catalyst comprising inserted Pt nanoparticles into MoS2 nanoflake stack structures on stainless steel mesh (SSM). The binder-free composite structure exhibits significantly enhanced hydrogen evolution reaction (HER) catalytic activity with an overpotentials of 87 mV at 10 mA cm−2. The deposited Pt nanoparticles significantly enhance the catalytic activity through changing the structure of MoS2 and increasing the amount of active sites. This work provides a new way forward for rational design of the nano-electrocatalysts.

Tuning the catalytic activity of heterogeneous two-dimensional transition metal dichalcogenides for hydrogen evolution

2018 ◽  
Vol 6 (41) ◽  
pp. 20005-20014 ◽  
Author(s):  
Seung Hyo Noh ◽  
Jeemin Hwang ◽  
Joonhee Kang ◽  
Min Ho Seo ◽  
Daehyeon Choi ◽  
...  
Keyword(s):  
Big Data ◽  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Basal Plane ◽  
Active Sites ◽  
Catalytic Properties ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Metal Dichalcogenides

This study establishes big data for the catalytic properties of two-dimensional metal-dichalcogenides (2D-TMDs) toward the hydrogen evolution reaction (HER). In addition to conventionally known active sites of edges, it proposes that terrace sites (or the basal plane) can be substantially activated for the HER.

Ultrasmall tungsten phosphide nanoparticles embedded in nitrogen-doped carbon as a highly active and stable hydrogen-evolution electrocatalyst

2016 ◽  
Vol 4 (40) ◽  
pp. 15327-15332 ◽  
Author(s):  
Zonghua Pu ◽  
Xue Ya ◽  
Ibrahim Saana Amiinu ◽  
Zhengkai Tu ◽  
Xiaobo Liu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Nitrogen Doped ◽  
Highly Active ◽  
Ph Range ◽  
Nitrogen Doped Carbon ◽  
Tungsten Phosphide

WP NPs@NC exhibits remarkable hydrogen evolution reaction catalytic activity and durability over the entire pH range.

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