Identifying the bottleneck of water oxidation by ab initio analysis of in situ optical absorbance spectrum

2017 ◽  
Vol 19 (26) ◽  
pp. 17278-17286 ◽  
Author(s):  
Natav Yatom ◽  
Yuval Elbaz ◽  
Shelly Navon ◽  
Maytal Caspary Toroker
Keyword(s):  
Ab Initio ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Absorbance Spectrum ◽  
Optical Absorbance ◽  
Splitting Water ◽  
Low Rate

Hematite's (α-Fe2O3) major limitation to efficiently splitting water using sunlight is the low rate of the oxygen evolution reaction (OER).

Valence- and element-dependent water oxidation behaviors: in situ X-ray diffraction, absorption and electrochemical impedance spectroscopies

2017 ◽  
Vol 19 (13) ◽  
pp. 8681-8693 ◽  
Author(s):  
Chia-Shuo Hsu ◽  
Nian-Tzu Suen ◽  
Ying-Ya Hsu ◽  
Hsuan-Yu Lin ◽  
Ching-Wei Tung ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Electrochemical Impedance ◽  
X Ray Diffraction ◽  
X Ray ◽  
Oxidation Behaviors

Various metal oxides of the spinel family have shown great potential towards the oxygen evolution reaction, but this behavior only works in specific cases.

scholarly journals In situ autologous growth of self-supporting NiFe-based nanosheets on nickel foam as an efficient electrocatalyst for the oxygen evolution reaction

RSC Advances ◽  
2019 ◽  
Vol 9 (38) ◽  
pp. 21679-21684 ◽  
Author(s):  
Jianying Wang ◽  
Xue Teng ◽  
Yanli Niu ◽  
Lixia Guo ◽  
Jianfei Kong ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Nickel Foam ◽  
Cost Effective ◽  
Growth Method

We report here a simple and cost-effective autologous growth method to prepare a NiFe-based integrated electrode for efficient electrocatalytic water oxidation.

In situ grown, self-supported iron–cobalt–nickel alloy amorphous oxide nanosheets with low overpotential toward water oxidation

2016 ◽  
Vol 52 (23) ◽  
pp. 4290-4293 ◽  
Author(s):  
Jiaqi Fan ◽  
Zuofeng Chen ◽  
Huijie Shi ◽  
Guohua Zhao
Keyword(s):  
Nickel Alloy ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Electrocatalytic Activity ◽  
Amorphous Oxides ◽  
Iron Cobalt ◽  
Cobalt Nickel ◽  
Supported Iron

In situ grown and self-supported iron–cobalt–nickel ternary alloy amorphous oxides were prepared by simple anodization which showed superior electrocatalytic activity toward oxygen evolution reaction with an overpotential of only 170 mV and a low Tafel slope.

In-Situ Etch Engineering Ru Doped NiFe(OH)x/NiFe-MOF Nanocomposite for Boosting Oxygen Evolution Reaction

2021 ◽  
Author(s):  
Dongmei Liu ◽  
Hui Xu ◽  
Cheng Wang ◽  
Changqing Ye ◽  
Rui Yu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Electronic Conductivity ◽  
Metal Organic Frameworks ◽  
Practical Applications ◽  
The Poor ◽  
Metal Organic

Metal-organic frameworks (MOFs) have been deemed as promising electrocatalysts for electrochemical water oxidation, however, the poor electronic conductivity and stability are still intractable issues hindering the practical applications. Herein, an...

An Fe(TCNQ)2 nanowire array on Fe foil: an efficient non-noble-metal catalyst for the oxygen evolution reaction in alkaline media

2018 ◽  
Vol 54 (18) ◽  
pp. 2300-2303 ◽  
Author(s):  
Maowen Xie ◽  
Xiaoli Xiong ◽  
Lin Yang ◽  
Xifeng Shi ◽  
Abdullah M. Asiri ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Nanowire Array ◽  
Alkaline Media ◽  
Metal Catalyst ◽  
Noble Metal Catalyst ◽  
A Current

An Fe-(tetracyanoquinodimethane)2 nanowire array in situ developed on Fe foil (Fe(TCNQ)2/Fe) acts as an efficient and durable electrocatalyst for water oxidation, needing an overpotential of 340 mV to attain a current density of 10 mA cm−2 in 1.0 M KOH.

In situ oxidation transformation of trimetallic selenide to amorphous FeCo-oxyhydroxide by self-sacrificing MoSe2 for efficient water oxidation

2020 ◽  
Vol 8 (16) ◽  
pp. 7925-7934 ◽  
Author(s):  
Yu-Jia Tang ◽  
Yu Wang ◽  
Kun Zhou
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
High Exposure ◽  
In Situ Oxidation

A MoSe2-containing trimetallic selenide is synthesized and in situ converted to an amorphous FeCo-oxyhydroxide during the oxygen evolution reaction, while MoSe2 is self-sacrificially dissolved, leaving considerable space to increase a high exposure of FeCo-oxyhydroxide species to the electrolyte.

In situ formed VOOH nanosheet arrays anchored on a Ti3C2Tx MXene as a highly efficient and robust synergistic electrocatalyst for boosting water oxidation and reduction

2020 ◽  
Vol 8 (44) ◽  
pp. 23637-23644
Author(s):  
Liang Yan ◽  
Xuanwei Chen ◽  
Xiaojun Liu ◽  
Liping Chen ◽  
Bing Zhang
Keyword(s):  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Highly Efficient ◽  
Electrocatalytic Performance ◽  
Nanosheet Arrays

A novel VOOH/Ti3C2Tx MXene heterostructure was synthesized; it delivered enhanced electrocatalytic performance for the hydrogen evolution reaction and the oxygen evolution reaction.

In situ identification of the electrocatalytic water oxidation behavior of a nickel-based metal–organic framework nanoarray

2021 ◽  
Author(s):  
Fanpeng Cheng ◽  
Zhongjian Li ◽  
Lin Wang ◽  
Bin Yang ◽  
Jianguo Lu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Oxidation Behavior ◽  
Metal Organic Framework ◽  
Behavior Changes ◽  
Direct Identification ◽  
Metal Organic ◽  
Organic Framework

Direct identification of electrocatalytic behavior changes for highly efficient metal–organic framework based oxygen evolution reaction electrocatalysts is explored.

Controllable growth of graphdiyne layered nanosheets for high-performance water oxidation

2021 ◽  
Author(s):  
Shuya Zhao ◽  
Yurui Xue ◽  
Zhongqiang Wang ◽  
Zhiqiang Zheng ◽  
Xiaoyu Luan ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
High Performance ◽  
Low Cost ◽  
Highly Active ◽  
Controllable Growth

Developing highly active, stable and low-cost electrocatalysts capable of an efficient oxygen evolution reaction (OER) is urgent and challenging.

Sign in / Sign up

Export Citation Format

Share Document