{"title":"添加非离子表面活性剂的 Cu2ZnSnS4 在氢气进化反应 (HER) 中的电催化活性与形态和化学计量有关","authors":"Xuemei Hu, Jianping Zhou, Jianqin Bao, Yadong Zhang, Junqiang Qiao","doi":"10.1007/s12678-023-00846-7","DOIUrl":null,"url":null,"abstract":"<div><p>In this work, hierarchical Cu<sub>2</sub>ZnSnS<sub>4</sub> electrocatalysts with different morphologies and stoichiometries were synthesized via the hydrothermal method and their electrocatalytic performances in hydrogen evolution reaction were evaluated. The morphologies of Cu<sub>2</sub>ZnSnS<sub>4</sub> electrocatalysts were modulated by adjusting the content of surfactants during the hydrothermal process. The stoichiometries of as-prepared Cu<sub>2</sub>ZnSnS<sub>4</sub> were found to be Cu<sub>2</sub>Zn<sub>0.8</sub>Sn<sub>0.7</sub>S<sub>2.9</sub>, Cu<sub>2</sub>Zn<sub>0.7</sub>Sn<sub>1.2</sub>S<sub>4.7</sub> and Cu<sub>2</sub>Zn<sub>0.5</sub>Sn<sub>0.7</sub>S<sub>3.2</sub> for the absence of surfactant and the addition of polyethylene glycol-(400) (PEG 400) and octylphenol polyoxyethyleneether-10 (OP 10) respectively. The Cu<sub>2</sub>ZnSnS<sub>4</sub> synthesized with the addition of PEG 400 displayed superior electrocatalytic activity in acid medium with an overpotential of 295 mV obtained at 10 mA cm<sup>− 2</sup> and a Tafel slope of 133 mV dec<sup>− 1</sup>. This work reveals that the stoichiometry and microstructure of Cu<sub>2</sub>ZnSnS<sub>4</sub> are critically important for its electrocatalytic activity while have less impact on the electrocatalytic durability, and provides useful information to explore the utilization of chalcogenides as the attractive electrocatalysts.</p></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"15 1","pages":"1 - 9"},"PeriodicalIF":2.7000,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Morphology and Stoichiometry Dependent Electrocatalytic Activity of Cu2ZnSnS4 for Hydrogen Evolution Reaction (HER) with Addition of Nonionic Surfactants\",\"authors\":\"Xuemei Hu, Jianping Zhou, Jianqin Bao, Yadong Zhang, Junqiang Qiao\",\"doi\":\"10.1007/s12678-023-00846-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this work, hierarchical Cu<sub>2</sub>ZnSnS<sub>4</sub> electrocatalysts with different morphologies and stoichiometries were synthesized via the hydrothermal method and their electrocatalytic performances in hydrogen evolution reaction were evaluated. The morphologies of Cu<sub>2</sub>ZnSnS<sub>4</sub> electrocatalysts were modulated by adjusting the content of surfactants during the hydrothermal process. The stoichiometries of as-prepared Cu<sub>2</sub>ZnSnS<sub>4</sub> were found to be Cu<sub>2</sub>Zn<sub>0.8</sub>Sn<sub>0.7</sub>S<sub>2.9</sub>, Cu<sub>2</sub>Zn<sub>0.7</sub>Sn<sub>1.2</sub>S<sub>4.7</sub> and Cu<sub>2</sub>Zn<sub>0.5</sub>Sn<sub>0.7</sub>S<sub>3.2</sub> for the absence of surfactant and the addition of polyethylene glycol-(400) (PEG 400) and octylphenol polyoxyethyleneether-10 (OP 10) respectively. The Cu<sub>2</sub>ZnSnS<sub>4</sub> synthesized with the addition of PEG 400 displayed superior electrocatalytic activity in acid medium with an overpotential of 295 mV obtained at 10 mA cm<sup>− 2</sup> and a Tafel slope of 133 mV dec<sup>− 1</sup>. This work reveals that the stoichiometry and microstructure of Cu<sub>2</sub>ZnSnS<sub>4</sub> are critically important for its electrocatalytic activity while have less impact on the electrocatalytic durability, and provides useful information to explore the utilization of chalcogenides as the attractive electrocatalysts.</p></div>\",\"PeriodicalId\":535,\"journal\":{\"name\":\"Electrocatalysis\",\"volume\":\"15 1\",\"pages\":\"1 - 9\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2023-10-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electrocatalysis\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12678-023-00846-7\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrocatalysis","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s12678-023-00846-7","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Morphology and Stoichiometry Dependent Electrocatalytic Activity of Cu2ZnSnS4 for Hydrogen Evolution Reaction (HER) with Addition of Nonionic Surfactants
In this work, hierarchical Cu2ZnSnS4 electrocatalysts with different morphologies and stoichiometries were synthesized via the hydrothermal method and their electrocatalytic performances in hydrogen evolution reaction were evaluated. The morphologies of Cu2ZnSnS4 electrocatalysts were modulated by adjusting the content of surfactants during the hydrothermal process. The stoichiometries of as-prepared Cu2ZnSnS4 were found to be Cu2Zn0.8Sn0.7S2.9, Cu2Zn0.7Sn1.2S4.7 and Cu2Zn0.5Sn0.7S3.2 for the absence of surfactant and the addition of polyethylene glycol-(400) (PEG 400) and octylphenol polyoxyethyleneether-10 (OP 10) respectively. The Cu2ZnSnS4 synthesized with the addition of PEG 400 displayed superior electrocatalytic activity in acid medium with an overpotential of 295 mV obtained at 10 mA cm− 2 and a Tafel slope of 133 mV dec− 1. This work reveals that the stoichiometry and microstructure of Cu2ZnSnS4 are critically important for its electrocatalytic activity while have less impact on the electrocatalytic durability, and provides useful information to explore the utilization of chalcogenides as the attractive electrocatalysts.
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Electrocatalysis is cross-disciplinary in nature, and attracts the interest of chemists, physicists, biochemists, surface and materials scientists, and engineers. Electrocatalysis provides the unique international forum solely dedicated to the exchange of novel ideas in electrocatalysis for academic, government, and industrial researchers. Quick publication of new results, concepts, and inventions made involving Electrocatalysis stimulates scientific discoveries and breakthroughs, promotes the scientific and engineering concepts that are critical to the development of novel electrochemical technologies.
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