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Marigold Flower-Shaped Metal-Organic Framework Supported Manganese Vanadium Oxide Electrocatalyst for Efficient Oxygen Evolution Reactions in an Alkaline Medium.
Ji, Seong-Min; Muthurasu, Alagan; Kim, Hak Yong.
Afiliação
  • Ji SM; Department of Nano Convergence Engineering, Jeonbuk National University, 561-756, Jeonju, Republic of Korea.
  • Muthurasu A; Department of Nano Convergence Engineering, Jeonbuk National University, 561-756, Jeonju, Republic of Korea.
  • Kim HY; Department of Nano Convergence Engineering, Jeonbuk National University, 561-756, Jeonju, Republic of Korea.
Chemistry ; 29(27): e202300137, 2023 May 11.
Article em En | MEDLINE | ID: mdl-36807426
The electrochemical oxygen evolution reaction (OER) is a key process in many renewable energy systems. The development of low-cost, long-lasting alternatives to precious-metal catalysts, particularly functional electrocatalysts with high activity for OER processes, is crucial for reducing the operating expense and complexity of renewable energy generating systems. This work describes a concise method for generating marigold flower-like metal-organic frameworks (MOFs) aided manganese vanadium oxide via a hydrothermal procedure for increased OER activity. As synthesized MOF MnV oxide has a higher surface area due to the 3D flower-like structure, which is reinvented with enhanced electrocatalytic active sites. These distinctive structural features result in remarkable catalytic activity for MOF MnV oxide microflowers towards OER with a low overpotential of 310 mV at 50 mA cm-2 and a Tafel slope with only 51.4 mV dec-1 in alkaline conditions. This study provides a concise method for developing an optimized catalytic material with greater morphology and beneficial features for potential energy and environmental applications.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article