Sulfur Recovery Assisted Electrochemical Water Splitting for H2 Production Using CoMo-Based Nanorod Arrays Catalysts

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY ACS Materials Letters Pub Date : 2024-05-30 DOI:10.1021/acsmaterialslett.4c00695

Jinyan Huo, Qing Liu, Xiaofang Liu, Xuefeng Cheng, Dongyun Chen, Najun Li, Kin Liao, Qingfeng Xu* and Jianmei Lu*,

{"title":"Sulfur Recovery Assisted Electrochemical Water Splitting for H2 Production Using CoMo-Based Nanorod Arrays Catalysts","authors":"Jinyan Huo, Qing Liu, Xiaofang Liu, Xuefeng Cheng, Dongyun Chen, Najun Li, Kin Liao, Qingfeng Xu* and Jianmei Lu*, ","doi":"10.1021/acsmaterialslett.4c00695","DOIUrl":null,"url":null,"abstract":"Swapping the sluggish oxygen evolution reaction (OER) for the thermodynamically advantageous sulfur ion oxidation reaction (SOR) makes it possible to produce low-energy hydrogen. We report here on an electrocatalytic SOR-coupled HER system that allows for the joint production of sulfur and hydrogen. We prepare a CoMoO4 nanoarray on nickel foam (NF) for anodic SOR and N-doped CoMoO4/NF, CoMoN/NF, for cathodic HER. The current density of 100 mA cm–2 was obtained at 0.29 V (vs RHE) in the SOR process. After nitridation, the electrode can achieve a current density of 10 mA cm–2 in HER at a voltage of only 32 mV (vs RHE). The coupling system (SOR//HER) can run steadily for 150 h. Detailed exploration and discussion were conducted on the pathways of SOR. This work develops an energy-efficient mixed water electrolysis system for H2, providing a viable option for toxic waste treatment.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":null,"pages":null},"PeriodicalIF":9.6000,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Materials Letters","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsmaterialslett.4c00695","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Swapping the sluggish oxygen evolution reaction (OER) for the thermodynamically advantageous sulfur ion oxidation reaction (SOR) makes it possible to produce low-energy hydrogen. We report here on an electrocatalytic SOR-coupled HER system that allows for the joint production of sulfur and hydrogen. We prepare a CoMoO₄ nanoarray on nickel foam (NF) for anodic SOR and N-doped CoMoO₄/NF, CoMoN/NF, for cathodic HER. The current density of 100 mA cm^–2 was obtained at 0.29 V (vs RHE) in the SOR process. After nitridation, the electrode can achieve a current density of 10 mA cm^–2 in HER at a voltage of only 32 mV (vs RHE). The coupling system (SOR//HER) can run steadily for 150 h. Detailed exploration and discussion were conducted on the pathways of SOR. This work develops an energy-efficient mixed water electrolysis system for H₂, providing a viable option for toxic waste treatment.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

使用 CoMo 基纳米棒阵列催化剂进行硫回收辅助电化学水分离制取 H2

将缓慢的氧进化反应 (OER) 换成热力学上有利的硫离子氧化反应 (SOR)，使生产低能氢成为可能。我们在此报告一种电催化 SOR 耦合 HER 系统，该系统可联合生产硫和氢。我们在泡沫镍（NF）上制备了用于阳极 SOR 的 CoMoO4 纳米阵列，并在阴极 HER 中制备了掺杂 N 的 CoMoO4/NF（CoMoN/NF）。在 SOR 过程中，0.29 V（相对于 RHE）时的电流密度为 100 mA cm-2。氮化后，该电极在 HER 中的电压仅为 32 mV（相对于 RHE），电流密度可达 10 mA cm-2。耦合系统（SOR//HER）可稳定运行 150 小时。这项研究开发了一种高效节能的混合水电解系统，为有毒废物处理提供了一种可行的选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

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.