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Electrocatalysts for the oxygen evolution reaction (OER) are an important component for the transition from fossil to sustainable energy. Commercialization of cost-effective earth-abundant electrocatalysts is in large parts hindered by…

Chemical Physics · Physics 2022-10-31 Marcel Risch

The correlation between ex situ electronic conductivity, oxygen vacancy content, flat-band potential (Efb), and the oxygen evolution reaction (OER) activity for a wide range of perovskite compositions are investigated experimentally and…

Oxygen evolution reaction (OER) with intractable high overpotential is the rate-limiting step for rechargeable metal-air battery, water electrolysis systems, and solar fuels devices. There exists a spin state transition from spin singlet…

Materials Science · Physics 2020-04-14 Xiaoning Li , Zhenxiang Cheng , Xiaolin Wang

Chemical energy storage is an attractive solution to secure a sustainable energy supply. It requires an electrocatalyst to be implemented efficiently. In order to rationally improve the electrocatalyst materials and thereby the reaction…

Materials Science · Physics 2022-08-01 Marcel Risch , Dulce M. Morales , Javier Villalobos , Denis Antipin

Oxygen evolution reaction (OER) electrolysis, as an important reaction involved in water splitting and rechargeable metal-air battery, has attracted increasing attention for clean energy generation and efficient energy storage. Nickel/iron…

Materials Science · Physics 2014-11-19 Ming Gong , Hongjie Dai

Transition metal oxides are state-of-the-art materials for catalysing the oxygen evolution reaction (OER), whose slow kinetics currently limit the efficiency of water electrolysis. However, microscale physicochemical heterogeneity between…

The oxygen evolution reaction (OER) is considered a key reaction for electrochemical energy conversion but slow kinetics hamper application in electrolyzers, metal-air batteries and other applications that rely on sustainable protons from…

Materials Science · Physics 2020-10-15 Denis Antipin , Marcel Risch

Green hydrogen production is crucial for a sustainable future, but current catalysts for the oxygen evolution reaction (OER) suffer from slow kinetics, despite many efforts to produce optimal designs, particularly through the calculation of…

The oxygen evolution reaction (OER) plays an important role in evaluating a photocatalyst and to understand its surface chemistry. In this work we present a comparative study of the OER on the oxide NaTaO$_3$ (113) surface and the…

Materials Science · Physics 2018-10-17 Hassan Ouhbi , Ulrich Aschauer

Efficient electro-catalytic water-splitting technologies require suitable catalysts for the oxygen evolution reaction (OER). The development of novel catalysts could benefit from the achievement of a complete understanding of the reaction…

Materials Science · Physics 2020-04-22 Francesco Nattino , Nicola Marzari

Despite numerous experimental and theoretical studies devoted to the oxygen evolution reaction, the mechanism of the OER on transition metal oxides remains controversial. This is in part owed to the ambiguity of electrochemical parameters…

Chemical Physics · Physics 2021-12-10 Denis Antipin , Marcel Risch

Transition metal oxides have been extensively studied and utilized as efficient catalysts. However, the strongly correlated behavior which often results in intriguing emergent phenomena in these materials has been mostly overlooked in…

Oxygen reduction/evolution reaction (ORR/OER) is a basic process for fuel cells or metal air batteries. However, ORR/OER generally requires noble metal catalysts and suffers from low solubility (10-3 molar per liter) of O2, low kinetics…

Materials Science · Physics 2014-10-17 Yanyi Chen , Chengjun Xu , Shan Shi , Jia Li , Feiyu Kang , Chunguang Wei

Electrochemical water splitting is an environmentally friendly technology to store renewable energy in the form of chemical fuels. Among the earth-abundant first-row transition metal-based catalysts, mixed Ni-Fe oxides have shown promising…

NiFe oxyhydroxide is one of the most promising oxygen evolution reaction (OER) catalysts for renewable hydrogen production, and deciphering the identity and reactivity of the oxygen intermediates on its surface is a key challenge but is…

Materials Science · Physics 2020-10-01 Yaming Hao , Yefei Li , Jianxiang Wu , Jinling Wang , Chenglin Jia , Tao Liu , Xuejing Yang , Zhipan Liu , Ming Gong

The transition to sustainable green hydrogen production demands innovative electrocatalyst design strategies that can overcome current technological limitations. This study introduces a comprehensive data-driven approach to predicting and…

Computational Physics · Physics 2024-12-18 Vipin K E , Prahallad Padhan

Developing advanced catalysts for acidic oxygen evolution reaction (OER) is crucial for sustainable hydrogen production. This study introduces a novel, multi-stage machine learning (ML) approach to streamline the discovery and optimization…

Materials Science · Physics 2024-07-09 Rui Ding , Jianguo Liu , Kang Hua , Xuebin Wang , Xiaoben Zhang , Minhua Shao , Yuxin Chen , Junhong Chen

This work highlights the potential of earth-abundant mixed-metal oxide catalysts for the acid-based oxygen evolution reaction. These catalysts offer numerous combinations of metal-centre compositions, which can enhance catalytic activity…

Applied Physics · Physics 2023-11-14 Erfan Fatehi , Manish Thadani , Gabriel Birsan , Robert W Black

The efficiency of $H_2$ production via water electrolysis is typically limited to the sluggish oxygen evolution reaction (OER). As such, significant emphasis has been placed upon improving the rate of OER through the anode catalyst. More…

A comprehensive understanding of the electrode-electrolyte interface in energy conversion systems remains challenging due to the complex and multifaceted nature of interfacial processes. This complexity hinders the development of more…

Chemical Physics · Physics 2024-10-23 Ben Wang , Tomohiro Fukushima , Hiro Minamimoto , Andrey Lyalin , Kei Murakoshi , Tetsuya Taketsugu
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