A sea anemone-like CuO/Co3O4 composite: an effective catalyst for electrochemical water splitting

2015 ◽  
Vol 51 (81) ◽  
pp. 15012-15014 ◽  
Author(s):  
Xiumin Li ◽  
Guoqing Guan ◽  
Xiao Du ◽  
Ji Cao ◽  
Xiaogang Hao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Hierarchical Structure ◽  
High Stability ◽  
Water Electrolysis ◽  
Sea Anemone ◽  
Excellent Performance ◽  
Effective Catalyst ◽  
Low Overpotential ◽  
Electrochemical Water Splitting

A sea anemone-like CuO/Co3O4 composite with 3D hierarchical structure exhibits excellent performance for water electrolysis at a low overpotential with high stability.

scholarly journals Imaging nanobubble nucleation and hydrogen spillover during electrocatalytic water splitting

2018 ◽  
Vol 115 (23) ◽  
pp. 5878-5883 ◽  
Author(s):  
Rui Hao ◽  
Yunshan Fan ◽  
Marco D. Howard ◽  
Joshua C. Vaughan ◽  
Bo Zhang
Keyword(s):  
Water Splitting ◽  
Indium Tin Oxide ◽  
Reduction Potential ◽  
Water Electrolysis ◽  
Nucleation And Growth ◽  
Hydrogen Spillover ◽  
Interfacial Structure ◽  
Superresolution Microscopy ◽  
Solution Interface ◽  
Electrochemical Water Splitting

Nucleation and growth of hydrogen nanobubbles are key initial steps in electrochemical water splitting. These processes remain largely unexplored due to a lack of proper tools to probe the nanobubble’s interfacial structure with sufficient spatial and temporal resolution. We report the use of superresolution microscopy to image transient formation and growth of single hydrogen nanobubbles at the electrode/solution interface during electrocatalytic water splitting. We found hydrogen nanobubbles can be generated even at very early stages in water electrolysis, i.e., ∼500 mV before reaching its thermodynamic reduction potential. The ability to image single nanobubbles on an electrode enabled us to observe in real time the process of hydrogen spillover from ultrathin gold nanocatalysts supported on indium–tin oxide.

Zinc-telluride nanospheres as an efficient water oxidation electrocatalyst displaying a low overpotential for oxygen evolution

2019 ◽  
Vol 7 (46) ◽  
pp. 26410-26420 ◽  
Author(s):  
Maira Sadaqat ◽  
Laraib Nisar ◽  
Noor-Ul-Ain Babar ◽  
Fayyaz Hussain ◽  
Muhammad Naeem Ashiq ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Zinc Telluride ◽  
Low Overpotential ◽  
Electrochemical Water Splitting ◽  
Kinetics Of

Electrochemical water splitting is economically unviable due to the sluggish kinetics of the anodically uphill oxygen evolution reaction (OER).

A Co-doped Ni–Fe mixed oxide mesoporous nanosheet array with low overpotential and high stability towards overall water splitting

2018 ◽  
Vol 6 (1) ◽  
pp. 167-178 ◽  
Author(s):  
Zhengcui Wu ◽  
Xia Wang ◽  
Jiansong Huang ◽  
Feng Gao
Keyword(s):  
Water Splitting ◽  
Mixed Oxide ◽  
High Stability ◽  
Ni Foam ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Nanosheet Array ◽  
Low Overpotential ◽  
Co Doped

A Co-doped NiO/NiFe2O4 mesoporous nanosheet array on Ni foam is constructed for highly efficient overall water splitting.

Enhancement of HER kinetics with RhNiFe for high-rate water electrolysis

2020 ◽  
Vol 10 (11) ◽  
pp. 3681-3693 ◽  
Author(s):  
Kannimuthu Karthick ◽  
Abdul Bashith Mansoor Basha ◽  
Abinaya Sivakumaran ◽  
Subrata Kundu
Keyword(s):  
Water Splitting ◽  
Water Electrolysis ◽  
High Rate ◽  
Total Water ◽  
Low Overpotential

The NiFeCHH is best for OER and poor for HER which by introducing Rh, showed total water splitting in KOH. It requires an ultra-low overpotential of just 36 mV at 50 mA cm−2 for HERs and 286 mV at 50 mA cm−2 for TWS.

Nanostructured catalysts for electrochemical water splitting: current state and prospects

2016 ◽  
Vol 4 (31) ◽  
pp. 11973-12000 ◽  
Author(s):  
Xiumin Li ◽  
Xiaogang Hao ◽  
Abuliti Abudula ◽  
Guoqing Guan
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Nanostructured Catalysts ◽  
Water Electrolysis ◽  
Liquid Electrolyte ◽  
Current State ◽  
Electrochemical Water Splitting

The fundamentals of water electrolysis, current popular electrocatalysts developed for cathodic hydrogen evolution reaction (HER) and anodic oxygen evolution reaction (OER) in liquid electrolyte water electrolysis are reviewed and discussed.

Cobalt Doped Iron Phosphate Thin Film: An Effective Catalyst for Electrochemical Water Splitting

2021 ◽  
pp. 160914
Author(s):  
Suraj A. Khalate ◽  
Sujit A. Kadam ◽  
Yuan-Ron Ma ◽  
Sachin S. Pujari ◽  
Umakant M. Patil
Keyword(s):  
Thin Film ◽  
Water Splitting ◽  
Iron Phosphate ◽  
Effective Catalyst ◽  
Electrochemical Water Splitting

scholarly journals Recent progress of Ni–Fe layered double hydroxide and beyond towards electrochemical water splitting

2020 ◽  
Vol 2 (12) ◽  
pp. 5555-5566
Author(s):  
Bo Wen Xue ◽  
Cai Hong Zhang ◽  
Yi Zhong Wang ◽  
Wen Wen Xie ◽  
Nian-Wu Li ◽  
...  
Keyword(s):  
Water Splitting ◽  
Carbon Coating ◽  
Recent Progress ◽  
Low Cost ◽  
Water Electrolysis ◽  
Interface Engineering ◽  
Modulated Structure ◽  
Hollow Structures ◽  
Electrochemical Water Splitting ◽  
Double Hydroxide

Ni–Fe compounds are used in water electrolysis due to low cost, modulated structure, and simple syntheses. We summarize developments in Ni–Fe based electrocatalysts with focus on hollow structures, interface engineering, phase control and carbon coating.

Self-template synthesis of hierarchical CoMoS3 nanotubes constructed of ultrathin nanosheets for robust water electrolysis

2017 ◽  
Vol 5 (22) ◽  
pp. 11309-11315 ◽  
Author(s):  
Jinxue Guo ◽  
Xinqun Zhang ◽  
Yanfang Sun ◽  
Lin Tang ◽  
Xiao Zhang
Keyword(s):  
Water Splitting ◽  
Template Synthesis ◽  
Water Electrolysis ◽  
Ultrathin Nanosheets ◽  
Ultrathin Nanosheet ◽  
Electrochemical Water Splitting

This paper reports hierarchical CoMoS3 nanotubes constructed of ultrathin nanosheet subunits as a dual-catalyst for robust electrochemical water splitting.

Distinctive MoS2-MoP nanosheets structure anchored on N-doped porous carbon support as a catalyst to enhance electrochemical hydrogen production

2021 ◽  
Author(s):  
Yaoxia Yang ◽  
Xuqin An ◽  
Mi Kang ◽  
Fengyao Guo ◽  
Lan Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Porous Carbon ◽  
Low Cost ◽  
Carbon Support ◽  
Excellent Performance ◽  
Electrochemical Water Splitting

The construction of excellent performance electrocatalysts for hydrogen evolution reaction (HER) with low-cost and economical strategy was still struggling with an enormous challenge in electrochemical water splitting. In this paper,...

scholarly journals Vapor–solid synthesis of monolithic single-crystalline CoP nanowire electrodes for efficient and robust water electrolysis

2017 ◽  
Vol 8 (4) ◽  
pp. 2952-2958 ◽  
Author(s):  
Wei Li ◽  
Xuefei Gao ◽  
Dehua Xiong ◽  
Fang Xia ◽  
Jian Liu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Alkaline Solution ◽  
Water Electrolysis ◽  
Solid Reaction ◽  
Single Crystalline ◽  
Reaction Method ◽  
Electrochemical Water Splitting ◽  
Solid Synthesis

Ultralong single-crystalline CoP nanowires were grown on porous Co foam via a vapor–solid reaction method and used for overall electrochemical water splitting in alkaline solution.

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