Rapid Chemical Synthesis of High-Entropy Oxide Colloids under Ambient Conditions

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY ACS Materials Letters Pub Date : 2024-11-05 DOI:10.1021/acsmaterialslett.4c0184910.1021/acsmaterialslett.4c01849

Saikat Bolar, Akitaka Ito, Chunyu Yuan, Yoshikazu Ito and Takeshi Fujita*,

引用次数: 0

Abstract

High-entropy oxides (HEOs) exhibit high catalytic activities in the O₂ evolution reaction (OER). Nevertheless, the methods used for the fabrication of these oxides necessitate the application of heat and/or pressure. Accordingly, herein, HEO colloids are produced by a facile procedure under ambient temperature and pressure conditions using a strong base, an oxidant, and metal salt(s). Using the proposed method, HEO colloids containing up to 12 metal elements are prepared and specifically tailored as electrocatalysts for the OER. This chemical approach enables the cost-effective production of HEO colloids with diverse compositions, opening the door to a wide range of applications of HEOs.

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环境条件下高熵氧化物胶体的快速化学合成

高熵氧化物（HEOs）在O2析出反应（OER）中表现出较高的催化活性。然而，用于制造这些氧化物的方法需要加热和/或加压。因此，在本文中，HEO胶体通过使用强碱、氧化剂和金属盐在环境温度和压力条件下通过简单的程序产生。使用所提出的方法，制备了含有多达12种金属元素的HEO胶体，并专门定制为OER的电催化剂。这种化学方法能够经济高效地生产具有不同成分的HEO胶体，为HEO的广泛应用打开了大门。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.

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