{"title":"激光合成催化剂中的界面电荷转移调制用于高效氧气进化","authors":"Dong Hyeon Lee, Rahul Kerkar, Deepak Arumugam, Theerthagiri Jayaraman, Shankar Ramasamy, Soorathep Kheawhom, Myong Yong Choi","doi":"10.1039/d4ta06794k","DOIUrl":null,"url":null,"abstract":"Advancements in laser-based material development have enabled precise engineering of catalysts, thus promoting efficient and sustainable water-splitting reactions. This study presents a green approach for synthesizing a layered double hydroxide (LDH)-based catalyst on nickel foam (NF) using pulse-laser irradiation in liquids and microwave processes. The enhanced catalytic efficiency of NiFe-based LDH compared to IrO2/NF is demonstrated by its low overpotential (η ~ 292 mV), high current density, and enhanced charge transfer kinetics. Density functional theory studies portrayed the tailoring phenomenon of Fe on the electronic structure of the material, boosting its performance in the oxygen evolution reaction (OER). This study further explores the effective tuning of Fe insertion on the structural, electronic, and catalytic properties of Ni(OH)2 and NiFe LDHs, revealing on the change in the band gap (from 1.77 eV to 1.81 eV) and intrinsic magnetic moment (from 8 B to 20.3B). Additionally, the catalytic assessment showed superior OER performance, a reduction in η, and a 57% efficiency improvement in NiFe LDH, aligning with experimental findings and demonstrating enhanced catalytic effect in NiFe LDH/Ni(OH)2/NF toward OER. These results highlight the promising potential of laser-mediated techniques in fabricating efficient and cost-effective OER catalysts for sustainable energy production.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":null,"pages":null},"PeriodicalIF":10.7000,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Interfacial Charge Transfer Modulation in Laser-Synthesized Catalysts for Efficient Oxygen Evolution\",\"authors\":\"Dong Hyeon Lee, Rahul Kerkar, Deepak Arumugam, Theerthagiri Jayaraman, Shankar Ramasamy, Soorathep Kheawhom, Myong Yong Choi\",\"doi\":\"10.1039/d4ta06794k\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Advancements in laser-based material development have enabled precise engineering of catalysts, thus promoting efficient and sustainable water-splitting reactions. This study presents a green approach for synthesizing a layered double hydroxide (LDH)-based catalyst on nickel foam (NF) using pulse-laser irradiation in liquids and microwave processes. The enhanced catalytic efficiency of NiFe-based LDH compared to IrO2/NF is demonstrated by its low overpotential (η ~ 292 mV), high current density, and enhanced charge transfer kinetics. Density functional theory studies portrayed the tailoring phenomenon of Fe on the electronic structure of the material, boosting its performance in the oxygen evolution reaction (OER). This study further explores the effective tuning of Fe insertion on the structural, electronic, and catalytic properties of Ni(OH)2 and NiFe LDHs, revealing on the change in the band gap (from 1.77 eV to 1.81 eV) and intrinsic magnetic moment (from 8 B to 20.3B). Additionally, the catalytic assessment showed superior OER performance, a reduction in η, and a 57% efficiency improvement in NiFe LDH, aligning with experimental findings and demonstrating enhanced catalytic effect in NiFe LDH/Ni(OH)2/NF toward OER. These results highlight the promising potential of laser-mediated techniques in fabricating efficient and cost-effective OER catalysts for sustainable energy production.\",\"PeriodicalId\":82,\"journal\":{\"name\":\"Journal of Materials Chemistry A\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":10.7000,\"publicationDate\":\"2024-10-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Chemistry A\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1039/d4ta06794k\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry A","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4ta06794k","RegionNum":2,"RegionCategory":"材料科学","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
激光材料开发领域的进步实现了催化剂的精确工程化,从而促进了高效、可持续的分水反应。本研究介绍了一种在泡沫镍(NF)上使用脉冲激光照射液体和微波过程合成层状双氢氧化物(LDH)催化剂的绿色方法。与 IrO2/NF 相比,NiFe 基 LDH 的低过电位(η ~ 292 mV)、高电流密度和增强的电荷转移动力学证明了其催化效率的提高。密度泛函理论研究描绘了铁对材料电子结构的定制现象,从而提高了其在氧进化反应(OER)中的性能。本研究进一步探讨了铁的插入对 Ni(OH)2 和 NiFe LDHs 的结构、电子和催化特性的有效调整,揭示了带隙(从 1.77 eV 到 1.81 eV)和本征磁矩(从 8 B 到 20.3B)的变化。此外,催化评估显示,NiFe LDH 的 OER 性能优越,η 值降低,效率提高了 57%,这与实验结果一致,表明 NiFe LDH/Ni(OH)2/NF 对 OER 的催化效果增强。这些结果凸显了激光介导技术在为可持续能源生产制造高效、经济的 OER 催化剂方面的巨大潜力。
Interfacial Charge Transfer Modulation in Laser-Synthesized Catalysts for Efficient Oxygen Evolution
Advancements in laser-based material development have enabled precise engineering of catalysts, thus promoting efficient and sustainable water-splitting reactions. This study presents a green approach for synthesizing a layered double hydroxide (LDH)-based catalyst on nickel foam (NF) using pulse-laser irradiation in liquids and microwave processes. The enhanced catalytic efficiency of NiFe-based LDH compared to IrO2/NF is demonstrated by its low overpotential (η ~ 292 mV), high current density, and enhanced charge transfer kinetics. Density functional theory studies portrayed the tailoring phenomenon of Fe on the electronic structure of the material, boosting its performance in the oxygen evolution reaction (OER). This study further explores the effective tuning of Fe insertion on the structural, electronic, and catalytic properties of Ni(OH)2 and NiFe LDHs, revealing on the change in the band gap (from 1.77 eV to 1.81 eV) and intrinsic magnetic moment (from 8 B to 20.3B). Additionally, the catalytic assessment showed superior OER performance, a reduction in η, and a 57% efficiency improvement in NiFe LDH, aligning with experimental findings and demonstrating enhanced catalytic effect in NiFe LDH/Ni(OH)2/NF toward OER. These results highlight the promising potential of laser-mediated techniques in fabricating efficient and cost-effective OER catalysts for sustainable energy production.
期刊介绍:
The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.