Controllable Atomic Defect Engineering in Layered NixFe1-x(OH)2 Nanosheets for Electrochemical Overall Water Splitting

2021 ◽  
Author(s):  
Wei Ma ◽  
Jiajia Ge ◽  
Jin You Zheng ◽  
Jiangwei Zhang ◽  
Suyu Jiang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Low Cost ◽  
Defect Engineering ◽  
Overall Water Splitting ◽  
Earth Abundant

Exploring efficient electrocatalysts through controllable defect engineering in materials with low-cost and earth-abundant elements is highly desired for overall water splitting. Herein, a hybrid electrocatalyst was accomplished by growing layered...

scholarly journals Defect and Doping Co-Engineered Non-Metal Nanocarbon ORR Electrocatalyst

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Jian Zhang ◽  
Jingjing Zhang ◽  
Feng He ◽  
Yijun Chen ◽  
Jiawei Zhu ◽  
...  
Keyword(s):  
Rational Design ◽  
Low Cost ◽  
Reduction Reaction ◽  
Defect Engineering ◽  
Heteroatom Doping ◽  
Competitive Activity ◽  
Design And Manufacturing ◽  
Earth Abundant ◽  
Induced Defects ◽  
Carbon Based

AbstractExploring low-cost and earth-abundant oxygen reduction reaction (ORR) electrocatalyst is essential for fuel cells and metal–air batteries. Among them, non-metal nanocarbon with multiple advantages of low cost, abundance, high conductivity, good durability, and competitive activity has attracted intense interest in recent years. The enhanced ORR activities of the nanocarbons are normally thought to originate from heteroatom (e.g., N, B, P, or S) doping or various induced defects. However, in practice, carbon-based materials usually contain both dopants and defects. In this regard, in terms of the co-engineering of heteroatom doping and defect inducing, we present an overview of recent advances in developing non-metal carbon-based electrocatalysts for the ORR. The characteristics, ORR performance, and the related mechanism of these functionalized nanocarbons by heteroatom doping, defect inducing, and in particular their synergistic promotion effect are emphatically analyzed and discussed. Finally, the current issues and perspectives in developing carbon-based electrocatalysts from both of heteroatom doping and defect engineering are proposed. This review will be beneficial for the rational design and manufacturing of highly efficient carbon-based materials for electrocatalysis.

Plasma-Induced Defect Engineering and Cation Refilling of NiMoO4 Parallel Arrays for Overall Water Splitting

2021 ◽  
Vol 13 (35) ◽  
pp. 41545-41554
Author(s):  
Xuesong Liu ◽  
Peng Liu ◽  
Feifei Wang ◽  
Xingbin Lv ◽  
Tao Yang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Defect Engineering ◽  
Overall Water Splitting ◽  
Parallel Arrays

scholarly journals Photocatalytic Overall Water Splitting by SrTiO3 with Surface Oxygen Vacancies

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2572
Author(s):  
Yanfei Fan ◽  
Yan Liu ◽  
Hongyu Cui ◽  
Wen Wang ◽  
Qiaoyan Shang ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Oxygen Vacancies ◽  
Low Cost ◽  
Energy Levels ◽  
Light Response ◽  
Hydrogen Energy ◽  
Surface Oxygen ◽  
Carbon Reduction ◽  
Overall Water Splitting

Strontium Titanate has a typical perovskite structure with advantages of low cost and photochemical stability. However, the wide bandgap and rapid recombination of electrons and holes limited its application in photocatalysis. In this work, a SrTiO3 material with surface oxygen vacancies was synthesized via carbon reduction under a high temperature. It was successfully applied for photocatalytic overall water splitting to produce clean hydrogen energy under visible light irradiation without any sacrificial reagent for the first time. The photocatalytic overall water splitting ability of the as-prepared SrTiO3-C950 is attributed to the surface oxygen vacancies that can make suitable energy levels for visible light response, improving the separation and transfer efficiency of photogenerated carriers.

Co/Cu-modified NiO film grown on nickel foam as a highly active and stable electrocatalyst for overall water splitting

2020 ◽  
Vol 49 (6) ◽  
pp. 1776-1784 ◽  
Author(s):  
Zhengang Guo ◽  
Xiaofeng Wang ◽  
Yangqin Gao ◽  
Zhifeng Liu
Keyword(s):  
Water Splitting ◽  
Nickel Foam ◽  
Low Cost ◽  
Overall Water Splitting ◽  
Highly Active ◽  
Development And Utilization

The development and utilization of low-cost and efficient electrocatalysts for overall water splitting is of great significance for future energy supplies.

3D Hierarchical Network Derived from 2D Fe-doped NiSe Nanosheets/Carbon Nanotubes with Enhanced OER Performance for Overall Water Splitting

2022 ◽  
Author(s):  
Kai Chang ◽  
Duy Thanh Tran ◽  
Jingqiang Wang ◽  
Nam Hoon Kim ◽  
Joong Hee Lee
Keyword(s):  
Carbon Nanotubes ◽  
High Activity ◽  
Water Splitting ◽  
Electrode Material ◽  
Hydrogen Energy ◽  
Hierarchical Network ◽  
Overall Water Splitting ◽  
Earth Abundant

Designing an earth-abundant electrode material with high activity and durability is a major challenge for water splitting to produce clean and green hydrogen energy. In this study, we reported a...

scholarly journals Nickel foam and stainless steel mesh as electrocatalysts for hydrogen evolution reaction, oxygen evolution reaction and overall water splitting in alkaline media

RSC Advances ◽  
2019 ◽  
Vol 9 (54) ◽  
pp. 31563-31571 ◽  
Author(s):  
Xiaoyan Hu ◽  
Xuemei Tian ◽  
Ying-Wu Lin ◽  
Zhonghua Wang
Keyword(s):  
Stainless Steel ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Nickel Foam ◽  
Low Cost ◽  
Alkaline Media ◽  
Stainless Steel Mesh ◽  
Steel Mesh ◽  
Overall Water Splitting

Efficient electrocatalytic overall water splitting is achieved with commercially-available and low-cost nickel foam and stainless steel mesh as cathode and anode electrodes.

Fabrication of practical catalytic electrodes using insulating and eco-friendly substrates for overall water splitting

2020 ◽  
Vol 13 (1) ◽  
pp. 102-110 ◽  
Author(s):  
Weiju Hao ◽  
Renbing Wu ◽  
Hao Huang ◽  
Xin Ou ◽  
Lincai Wang ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Performance ◽  
Low Cost ◽  
Light Weight ◽  
Overall Water Splitting ◽  
Insulating Substrates

A family of catalytic electrodes fabricated by insulating substrates of paper, cloth and sponge which bring dramatic advantages of high performance, low cost, light weight, eco-friendliness, flexibility, and simple fabrication, were developed.

Al-doped nickel sulfide nanosheet arrays as highly efficient bifunctional electrocatalysts for overall water splitting

Nanoscale ◽  
2020 ◽  
Vol 12 (47) ◽  
pp. 24244-24250
Author(s):  
Wenjun He ◽  
Fangqing Wang ◽  
Dongbo Jia ◽  
Ying Li ◽  
Limin Liang ◽  
...  
Keyword(s):  
High Activity ◽  
Water Splitting ◽  
Precious Metal ◽  
Nickel Sulfide ◽  
Low Cost ◽  
Water Electrolysis ◽  
Overall Water Splitting ◽  
Bifunctional Electrocatalysts ◽  
Nanosheet Arrays ◽  
Production Of Hydrogen

The development of low-cost, high-activity, durable non-precious metal bifunctional electrocatalysts is of great importance in the production of hydrogen by water electrolysis.

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