Jiujun Deng*, Guoqing Li, Duan Yan, Wei Zhang*, Kun Feng, Kaiqi Nie, Changhai Liu, Xiaoxin Lv* and Jun Zhong*,
{"title":"通过可编程湿式界面焦耳加热快速合成可迁移的原恒星光阳极:改善水氧化的金属和晶格氧双位点","authors":"Jiujun Deng*, Guoqing Li, Duan Yan, Wei Zhang*, Kun Feng, Kaiqi Nie, Changhai Liu, Xiaoxin Lv* and Jun Zhong*, ","doi":"10.1021/acscatal.4c02690","DOIUrl":null,"url":null,"abstract":"<p >High-temperature sintering is critical for efficient hematite photoanodes in terms of improving the crystallinity and minimizing deficiencies. However, prolonged conventional furnace annealing requires high energy consumption and simultaneously results in serious damage to the transparent conducting oxide (TCO) substrate. This work demonstrates a universal wet-interfacial Joule heating strategy for rapidly synthesizing high-performance metastable protohematite photoanodes, which greatly decreases the power consumption and causes less damage to the TCO substrate by shortening the sintering time to ∼90 s. More importantly, the protohematite phase was found to effectively facilitate the charge dynamics in the bulk and surface of the as-resulting photoanode by increasing donor density and lowering the oxygen evolution reaction overpotential via offering dual active sites (lattice oxygen and Fe sites). Moreover, this annealing strategy could be well coupled with commonly used Ti-treatment to achieve a further performance enhancement and also shows high feasibility in rapidly fabricating efficient TiO<sub>2</sub> and BiVO<sub>4</sub> photoanodes. This study opens a facile, rapid, and reliable approach for fabricating efficient metal oxide photoanodes, contributing to the development of photoelectrochemical water splitting.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":null,"pages":null},"PeriodicalIF":11.3000,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Programmable Wet-Interfacial Joule Heating to Rapidly Synthesize Metastable Protohematite Photoanodes: Metal and Lattice Oxygen Dual Sites for Improving Water Oxidation\",\"authors\":\"Jiujun Deng*, Guoqing Li, Duan Yan, Wei Zhang*, Kun Feng, Kaiqi Nie, Changhai Liu, Xiaoxin Lv* and Jun Zhong*, \",\"doi\":\"10.1021/acscatal.4c02690\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >High-temperature sintering is critical for efficient hematite photoanodes in terms of improving the crystallinity and minimizing deficiencies. However, prolonged conventional furnace annealing requires high energy consumption and simultaneously results in serious damage to the transparent conducting oxide (TCO) substrate. This work demonstrates a universal wet-interfacial Joule heating strategy for rapidly synthesizing high-performance metastable protohematite photoanodes, which greatly decreases the power consumption and causes less damage to the TCO substrate by shortening the sintering time to ∼90 s. More importantly, the protohematite phase was found to effectively facilitate the charge dynamics in the bulk and surface of the as-resulting photoanode by increasing donor density and lowering the oxygen evolution reaction overpotential via offering dual active sites (lattice oxygen and Fe sites). Moreover, this annealing strategy could be well coupled with commonly used Ti-treatment to achieve a further performance enhancement and also shows high feasibility in rapidly fabricating efficient TiO<sub>2</sub> and BiVO<sub>4</sub> photoanodes. This study opens a facile, rapid, and reliable approach for fabricating efficient metal oxide photoanodes, contributing to the development of photoelectrochemical water splitting.</p>\",\"PeriodicalId\":9,\"journal\":{\"name\":\"ACS Catalysis \",\"volume\":null,\"pages\":null},\"PeriodicalIF\":11.3000,\"publicationDate\":\"2024-06-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Catalysis \",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acscatal.4c02690\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Catalysis ","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acscatal.4c02690","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Programmable Wet-Interfacial Joule Heating to Rapidly Synthesize Metastable Protohematite Photoanodes: Metal and Lattice Oxygen Dual Sites for Improving Water Oxidation
High-temperature sintering is critical for efficient hematite photoanodes in terms of improving the crystallinity and minimizing deficiencies. However, prolonged conventional furnace annealing requires high energy consumption and simultaneously results in serious damage to the transparent conducting oxide (TCO) substrate. This work demonstrates a universal wet-interfacial Joule heating strategy for rapidly synthesizing high-performance metastable protohematite photoanodes, which greatly decreases the power consumption and causes less damage to the TCO substrate by shortening the sintering time to ∼90 s. More importantly, the protohematite phase was found to effectively facilitate the charge dynamics in the bulk and surface of the as-resulting photoanode by increasing donor density and lowering the oxygen evolution reaction overpotential via offering dual active sites (lattice oxygen and Fe sites). Moreover, this annealing strategy could be well coupled with commonly used Ti-treatment to achieve a further performance enhancement and also shows high feasibility in rapidly fabricating efficient TiO2 and BiVO4 photoanodes. This study opens a facile, rapid, and reliable approach for fabricating efficient metal oxide photoanodes, contributing to the development of photoelectrochemical water splitting.
期刊介绍:
ACS Catalysis is an esteemed journal that publishes original research in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. It offers broad coverage across diverse areas such as life sciences, organometallics and synthesis, photochemistry and electrochemistry, drug discovery and synthesis, materials science, environmental protection, polymer discovery and synthesis, and energy and fuels.
The scope of the journal is to showcase innovative work in various aspects of catalysis. This includes new reactions and novel synthetic approaches utilizing known catalysts, the discovery or modification of new catalysts, elucidation of catalytic mechanisms through cutting-edge investigations, practical enhancements of existing processes, as well as conceptual advances in the field. Contributions to ACS Catalysis can encompass both experimental and theoretical research focused on catalytic molecules, macromolecules, and materials that exhibit catalytic turnover.