硫化的影响：NiMoO4和MoS2-NixS6催化剂在整体水分解中的性能比较

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy Pub Date : 2025-05-11 DOI:10.1016/j.ijhydene.2025.05.038

Yue Mao , Lili Geng , Qiangqiang Zhang , Lulu Zhang , Yongming Zeng , Ley Boon Sim

{"title":"硫化的影响：NiMoO4和MoS2-NixS6催化剂在整体水分解中的性能比较","authors":"Yue Mao , Lili Geng , Qiangqiang Zhang , Lulu Zhang , Yongming Zeng , Ley Boon Sim","doi":"10.1016/j.ijhydene.2025.05.038","DOIUrl":null,"url":null,"abstract":"<div><div>This study fabricates MoS2-NixS6 on nickel foam using a one-step hydrothermal synthesis to investigate the effect of sulfurization on the electrochemical properties and catalytic activity of Ni–Mo based materials for overall water splitting. XRD, HRTEM, EDX, and XPS indicate successful sulfurization. MoS2-NixS6/NF shows significant crystal reorganization after OER activation, while HER has a smaller surface effect. SEM reveals an advancement from spherical nanosheets of NiMoO4/NF to nanorods and nanoclusters of MoS2-NixS6/NF. HER activation impacts nanocluster size more than OER. HRTEM highlights ionic conductivity-friendly stacking faults after OER activation and the formation of a heterojunction following HER activation. XPS shows enhanced desired oxidation states after both activations. Signs of material improvement due to activations are reified through LSV comparisons. For overall water splitting, MoS2-NixS6/NF demonstrates stable performance around 1.67 V at 10 mA cm−2 for 120 h with 98.8 % and 99.5 % Faradaic efficiency for OER and HER, respectively.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"137 ","pages":"Pages 95-106"},"PeriodicalIF":8.1000,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of sulfurization: comparative performance of NiMoO4 and MoS2-NixS6 catalysts in overall water splitting\",\"authors\":\"Yue Mao , Lili Geng , Qiangqiang Zhang , Lulu Zhang , Yongming Zeng , Ley Boon Sim\",\"doi\":\"10.1016/j.ijhydene.2025.05.038\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study fabricates MoS2-NixS6 on nickel foam using a one-step hydrothermal synthesis to investigate the effect of sulfurization on the electrochemical properties and catalytic activity of Ni–Mo based materials for overall water splitting. XRD, HRTEM, EDX, and XPS indicate successful sulfurization. MoS2-NixS6/NF shows significant crystal reorganization after OER activation, while HER has a smaller surface effect. SEM reveals an advancement from spherical nanosheets of NiMoO4/NF to nanorods and nanoclusters of MoS2-NixS6/NF. HER activation impacts nanocluster size more than OER. HRTEM highlights ionic conductivity-friendly stacking faults after OER activation and the formation of a heterojunction following HER activation. XPS shows enhanced desired oxidation states after both activations. Signs of material improvement due to activations are reified through LSV comparisons. For overall water splitting, MoS2-NixS6/NF demonstrates stable performance around 1.67 V at 10 mA cm−2 for 120 h with 98.8 % and 99.5 % Faradaic efficiency for OER and HER, respectively.</div></div>\",\"PeriodicalId\":337,\"journal\":{\"name\":\"International Journal of Hydrogen Energy\",\"volume\":\"137 \",\"pages\":\"Pages 95-106\"},\"PeriodicalIF\":8.1000,\"publicationDate\":\"2025-05-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Hydrogen Energy\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0360319925022876\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Hydrogen Energy","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0360319925022876","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

摘要

本研究采用一步水热合成法在泡沫镍上制备MoS2-NixS6，研究硫化对Ni-Mo基材料整体水裂解电化学性能和催化活性的影响。XRD、HRTEM、EDX和XPS表明硫化成功。MoS2-NixS6/NF在OER活化后表现出明显的晶体重组，而HER的表面效应较小。SEM揭示了从球形NiMoO4/NF纳米片到MoS2-NixS6/NF纳米棒和纳米团簇的进展。HER活化对纳米团簇大小的影响大于OER。HRTEM强调了OER激活后离子电导率友好的层错和HER激活后异质结的形成。在两种活化后，XPS显示出所需氧化态的增强。由于活化导致的材料改善的迹象通过LSV比较来具体化。对于整体的水分解，MoS2-NixS6/NF在1.67 V, 10 mA cm−2,120 h下表现稳定，OER和HER的法拉第效率分别为98.8%和99.5%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effect of sulfurization: comparative performance of NiMoO4 and MoS2-NixS6 catalysts in overall water splitting

查看原文本刊更多论文

Effect of sulfurization: comparative performance of NiMoO4 and MoS2-NixS6 catalysts in overall water splitting

This study fabricates MoS₂-Ni_xS₆ on nickel foam using a one-step hydrothermal synthesis to investigate the effect of sulfurization on the electrochemical properties and catalytic activity of Ni–Mo based materials for overall water splitting. XRD, HRTEM, EDX, and XPS indicate successful sulfurization. MoS₂-Ni_xS₆/NF shows significant crystal reorganization after OER activation, while HER has a smaller surface effect. SEM reveals an advancement from spherical nanosheets of NiMoO₄/NF to nanorods and nanoclusters of MoS₂-Ni_xS₆/NF. HER activation impacts nanocluster size more than OER. HRTEM highlights ionic conductivity-friendly stacking faults after OER activation and the formation of a heterojunction following HER activation. XPS shows enhanced desired oxidation states after both activations. Signs of material improvement due to activations are reified through LSV comparisons. For overall water splitting, MoS₂-Ni_xS₆/NF demonstrates stable performance around 1.67 V at 10 mA cm⁻² for 120 h with 98.8 % and 99.5 % Faradaic efficiency for OER and HER, respectively.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

International Journal of Hydrogen Energy 工程技术-环境科学

CiteScore

13.50

自引率

25.00%

发文量

3502

审稿时长

60 days

期刊介绍： The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc. The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.