Rational design of oxygen evolution reaction catalysts for seawater electrolysis

2021 ◽  
Author(s):  
Fanghao Zhang ◽  
Luo Yu ◽  
Libo Wu ◽  
Dan Luo ◽  
Zhifeng Ren
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Rational Design ◽  
Seawater Electrolysis

High-performance anion exchange membrane alkaline seawater electrolysis

2021 ◽  
Author(s):  
Yoo Sei Park ◽  
Jooyoung Lee ◽  
Myeong-Je Jang ◽  
Juchan Yang ◽  
Jae Hoon Jeong ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Anion Exchange Membrane ◽  
Hydrogen Energy ◽  
Highly Active ◽  
Production Of Hydrogen ◽  
Exchange Membrane ◽  
Seawater Electrolysis

Seawater electrolysis is a promising technology for the production of hydrogen energy and seawater desalination. To produce hydrogen energy through seawater electrolysis, highly active electrocatalysts for the oxygen evolution reaction...

Fe-Co-P multi-heterostructure arrays for efficient electrocatalytic water splitting

2021 ◽  
Author(s):  
Hanwen Xu ◽  
Jiawei Zhu ◽  
Pengyan Wang ◽  
Ding Chen ◽  
Chengtian Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Rational Design ◽  
Large Scale ◽  
High Efficiency ◽  
Bifunctional Catalysts

Rational design and construction of high-efficiency bifunctional catalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is crucial for large-scale hydrogen production by water splitting. Herein, by a...

scholarly journals Fundamental insights and rational design of low-cost polyoxometalates for the oxygen evolution reaction

2021 ◽  
Vol 393 ◽  
pp. 202-206
Author(s):  
Michael John Craig ◽  
Romain Barda-Chatain ◽  
Max García-Melchor
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Rational Design ◽  
Low Cost

scholarly journals Engineering Ternary Copper-Cobalt Sulfide Nanosheets as High-performance Electrocatalysts toward Oxygen Evolution Reaction

Catalysts ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 459 ◽  
Author(s):  
Heng Luo ◽  
Hang Lei ◽  
Yufei Yuan ◽  
Yongyin Liang ◽  
Yi Qiu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Noble Metal ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Active Sites ◽  
High Performance ◽  
Rational Design ◽  
Renewable Energy Sources ◽  
Cobalt Sulfide ◽  
Carbon Cloth

The rational design and development of the low-cost and effective electrocatalysts toward oxygen evolution reaction (OER) are essential in the storage and conversion of clean and renewable energy sources. Herein, a ternary copper-cobalt sulfide nanosheets electrocatalysts (denoted as CuCoS/CC) for electrochemical water oxidation has been synthesized on carbon cloth (CC) via the sulfuration of CuCo-based precursors. The obtained CuCoS/CC reveals excellent electrocatalytic performance toward OER in 1.0 M KOH. It exhibits a particularly low overpotential of 276 mV at current density of 10 mA cm−2, and a small Tafel slope (58 mV decade−1), which is superior to the current commercialized noble-metal electrocatalysts, such as IrO2. Benefiting from the synergistic effect of Cu and Co atoms and sulfidation, electrons transport and ions diffusion are significantly enhanced with the increase of active sites, thus the kinetic process of OER reaction is boosted. Our studies will serve as guidelines in the innovative design of non-noble metal electrocatalysts and their application in electrochemical water splitting

scholarly journals Guidelines for the Rational Design of Ni-Based Double Hydroxide Electrocatalysts for the Oxygen Evolution Reaction

ACS Catalysis ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 5380-5387 ◽  
Author(s):  
Oscar Diaz-Morales ◽  
Isis Ledezma-Yanez ◽  
Marc T. M. Koper ◽  
Federico Calle-Vallejo
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Rational Design ◽  
Double Hydroxide

scholarly journals Bismuth Substituted Strontium Cobalt Perovskites for Catalyzing Oxygen Evolution

2019 ◽  
Author(s):  
Denis Kuznetsov ◽  
Jiayu Peng ◽  
Livia Giordano ◽  
Yuriy Román-Leshkov ◽  
Yang Shao-Horn
Keyword(s):  
Fermi Level ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Rational Design ◽  
High Stability ◽  
Inductive Effect ◽  
Specific Activity ◽  
Band Center ◽  
Highly Active ◽  
A Site

In this study, we employ the strategy of substitution with more electronegative/acidic A-site ions in the cobalt perovskites to alter O 2p-band center, surface hydroxide affinity, and oxygen evolution reaction (OER) activity and stability in the basic electrolyte. Galvanostatically charged Bi<sub>0.2</sub>Sr<sub>0.8</sub>CoO<sub>3-δ</sub> (δ close to zero) was shown to exhibit record OER specific activity exceeding not only La<sub>x</sub>Sr<sub>1-x</sub>CoO<sub>3-δ</sub> but also charged SrCoO<sub>3-δ</sub> (δ close to zero), one of the most active oxide OER catalysts reported so far. The enhanced OER activity of charged Bi<sub>0.2</sub>Sr<sub>0.8</sub>CoO<sub>3-δ</sub> can be attributed to greater hydroxide affinity facilitating the deprotonation of surface bound intermediates due to the presence of strong Lewis acidic A-site Bi<sup>3+</sup> ions, while the high stability can result from lowered O 2p-band center relative to the Fermi level. This work provides a novel example in the rational design of highly active oxide catalysts for OER by leveraging the inductive effect.

Construction of hierarchical FeP/Ni2P hollow nanospindles for efficient oxygen evolution

2018 ◽  
Vol 6 (29) ◽  
pp. 14103-14111 ◽  
Author(s):  
Yafei Feng ◽  
Chunyang Xu ◽  
Enlai Hu ◽  
Binbin Xia ◽  
Jiqiang Ning ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Rational Design ◽  
Design And Construction

We demonstrate the rational design and construction of hierarchical FeP@Ni2P hybrid hollow nanospindles (HNSs) as an active and stable electrocatalyst for the oxygen evolution reaction.

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