Lin Ge, Chang Liu, Tingting Xue, Yiyang Kang, Yining Sun, Yuxi Chen, Jiajie Wu, Kai Teng, Lei Li, Qing Qu
{"title":"Integrating Multiple Strategies Using Biotechnology to Design High-Performance Electrocatalysts for Hydrogen and Oxygen Evolution","authors":"Lin Ge, Chang Liu, Tingting Xue, Yiyang Kang, Yining Sun, Yuxi Chen, Jiajie Wu, Kai Teng, Lei Li, Qing Qu","doi":"10.1002/adfm.202413072","DOIUrl":null,"url":null,"abstract":"Combining multiple design strategies often enhances catalyst performance but usually comes with high costs and low reproducibility. A technique that enhances catalyst performance in multiple strategies is urgently needed. Herein, a novel bioregulation technique is introduced, allowing simultaneous control over morphology, particle size, doping, interface engineering, and electronic properties. Bioregulation technique utilizes the soluble extracellular polymer from <i>Aspergillus niger</i> as a templating agent to construct high-performance catalysts for hydrogen and oxygen evolution reaction (HER and OER). This technique controls catalyst morphology, introduces biological N and S doping, and regulates the electronic structure of the catalyst surface. Biomolecule modification enhances surface hydrophilicity, and the nanostructure increases surface roughness and gas-release efficiency. Theoretical calculations show that the bioregulation technique shortens the d/p-band center, optimizing reaction intermediate adsorption and desorption. The Bio-Pt/Co<sub>3</sub>O<sub>4</sub> catalyst with trace Pt on the surface, designed with these strategies, achieves HER (<i>η</i><sub>10</sub> of 42 mV), OER (<i>η</i><sub>10</sub> of 221 mV), and overall water-splitting performance (1.51 V at 10 mA cm<sup>−2</sup>), maintaining stability for over 50 h, outperforming most Pt-based catalysts. Notably, using spent lithium-ion battery cathodes leachate, rich in Co<sup>2</sup>⁺, successfully replicates the experiment. This approach holds promise as a mainstream method for synthesizing high-performance materials in the future.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":18.5000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Functional Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/adfm.202413072","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Combining multiple design strategies often enhances catalyst performance but usually comes with high costs and low reproducibility. A technique that enhances catalyst performance in multiple strategies is urgently needed. Herein, a novel bioregulation technique is introduced, allowing simultaneous control over morphology, particle size, doping, interface engineering, and electronic properties. Bioregulation technique utilizes the soluble extracellular polymer from Aspergillus niger as a templating agent to construct high-performance catalysts for hydrogen and oxygen evolution reaction (HER and OER). This technique controls catalyst morphology, introduces biological N and S doping, and regulates the electronic structure of the catalyst surface. Biomolecule modification enhances surface hydrophilicity, and the nanostructure increases surface roughness and gas-release efficiency. Theoretical calculations show that the bioregulation technique shortens the d/p-band center, optimizing reaction intermediate adsorption and desorption. The Bio-Pt/Co3O4 catalyst with trace Pt on the surface, designed with these strategies, achieves HER (η10 of 42 mV), OER (η10 of 221 mV), and overall water-splitting performance (1.51 V at 10 mA cm−2), maintaining stability for over 50 h, outperforming most Pt-based catalysts. Notably, using spent lithium-ion battery cathodes leachate, rich in Co2⁺, successfully replicates the experiment. This approach holds promise as a mainstream method for synthesizing high-performance materials in the future.
期刊介绍:
Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week.
Advanced Functional Materials is known for its rapid and fair peer review, quality content, and high impact, making it the first choice of the international materials science community.