Realizing Favorable Synergism Toward Efficient Hydrogen Evolution Reaction with Heterojunction Engineered Cu7S4/CuS2/NiS2 and Functionalized Carbon Sheet Heterostructures
Abstract Electrochemical hydrogen generation via water splitting is the greenest approach toward the hydrogen economy. To satisfy the practical utilization, the electrocatalyst for hydrogen evolution reaction (HER) must be of low cost with high catalytic activity. Accordingly, transition metal based...
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Wiley-VCH
2022-12-01
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| Series: | Advanced Materials Interfaces |
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| Online Access: | https://doi.org/10.1002/admi.202201478 |
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| author | Hemanth Kumar Beere Srimanta Pakhira Prahlada Thippeswamy Ashok Singh Shrish Nath Upadhyay Pooja B. Naik Nataraj Sanna Kotrappanavar Debasis Ghosh |
| author_facet | Hemanth Kumar Beere Srimanta Pakhira Prahlada Thippeswamy Ashok Singh Shrish Nath Upadhyay Pooja B. Naik Nataraj Sanna Kotrappanavar Debasis Ghosh |
| author_sort | Hemanth Kumar Beere |
| collection | DOAJ |
| description | Abstract Electrochemical hydrogen generation via water splitting is the greenest approach toward the hydrogen economy. To satisfy the practical utilization, the electrocatalyst for hydrogen evolution reaction (HER) must be of low cost with high catalytic activity. Accordingly, transition metal based electrocatalysts have attracted significant research interest. Herein, this work demonstrates an efficient HER electrocatalyst based on copper nickel sulfide (CNS), and Agaricus bisporus biomass derived functionalized carbon (FMCs) based nanocomposites, where the CNS are in situ hydrothermally grown in presence of FMCs. First, the effect of solvent (water, ethylene glycol, and glycerol) on the phase and crystallinity of CNS and their performance as HER electrocatalyst in acidic medium are demonstrated. The CNS heterojunction synthesized in aqueous medium (CNSW) shows the best HER catalytic activity with 269 mV (at 10 mA cm−2) overpotential and corresponding Tafel slope of 146.86 mV dec−1. Further, while the FMCs possess no catalytic activity itself, its control presence in the nanocomposites CNSW/FMCs nanocomposites caused a dramatic reduction in the HER overpotential (180 mV@10 mA cm−2) and the corresponding Tafel slope (78.71 mV dec−1). Notably, where the nonlayered metal sulfides generally are unstable in acidic medium, the synergistic interaction between the CNSW and FMCs enables stable catalytic activity for the measured 10 h. |
| format | Article |
| id | doaj-art-5c1f8cf392ae4daa8b8c9ea3795536ea |
| institution | DOAJ |
| issn | 2196-7350 |
| language | English |
| publishDate | 2022-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj-art-5c1f8cf392ae4daa8b8c9ea3795536ea2025-08-20T02:43:13ZengWiley-VCHAdvanced Materials Interfaces2196-73502022-12-01935n/an/a10.1002/admi.202201478Realizing Favorable Synergism Toward Efficient Hydrogen Evolution Reaction with Heterojunction Engineered Cu7S4/CuS2/NiS2 and Functionalized Carbon Sheet HeterostructuresHemanth Kumar Beere0Srimanta Pakhira1Prahlada Thippeswamy2Ashok Singh3Shrish Nath Upadhyay4Pooja B. Naik5Nataraj Sanna Kotrappanavar6Debasis Ghosh7Centre for Nano & Material sciences JAIN University Jain Global Campus Bangalore 562112 IndiaDepartment of Physics Indian Institute of Technology Indore Khandwa Road, Simrol Indore MP 453552 IndiaCentre for Nano & Material sciences JAIN University Jain Global Campus Bangalore 562112 IndiaDepartment of Physics Indian Institute of Technology Indore Khandwa Road, Simrol Indore MP 453552 IndiaDepartment of Metallurgy Engineering and Materials Science (MEMS) Indian Institute of Technology Indore Khandwa Road, Simrol Indore MP 453552 IndiaCentre for Nano & Material sciences JAIN University Jain Global Campus Bangalore 562112 IndiaCentre for Nano & Material sciences JAIN University Jain Global Campus Bangalore 562112 IndiaCentre for Nano & Material sciences JAIN University Jain Global Campus Bangalore 562112 IndiaAbstract Electrochemical hydrogen generation via water splitting is the greenest approach toward the hydrogen economy. To satisfy the practical utilization, the electrocatalyst for hydrogen evolution reaction (HER) must be of low cost with high catalytic activity. Accordingly, transition metal based electrocatalysts have attracted significant research interest. Herein, this work demonstrates an efficient HER electrocatalyst based on copper nickel sulfide (CNS), and Agaricus bisporus biomass derived functionalized carbon (FMCs) based nanocomposites, where the CNS are in situ hydrothermally grown in presence of FMCs. First, the effect of solvent (water, ethylene glycol, and glycerol) on the phase and crystallinity of CNS and their performance as HER electrocatalyst in acidic medium are demonstrated. The CNS heterojunction synthesized in aqueous medium (CNSW) shows the best HER catalytic activity with 269 mV (at 10 mA cm−2) overpotential and corresponding Tafel slope of 146.86 mV dec−1. Further, while the FMCs possess no catalytic activity itself, its control presence in the nanocomposites CNSW/FMCs nanocomposites caused a dramatic reduction in the HER overpotential (180 mV@10 mA cm−2) and the corresponding Tafel slope (78.71 mV dec−1). Notably, where the nonlayered metal sulfides generally are unstable in acidic medium, the synergistic interaction between the CNSW and FMCs enables stable catalytic activity for the measured 10 h.https://doi.org/10.1002/admi.202201478biomass derived carbonhydrogen evolution reactionmixed metal sulfidesnanocompositesoverpotential |
| spellingShingle | Hemanth Kumar Beere Srimanta Pakhira Prahlada Thippeswamy Ashok Singh Shrish Nath Upadhyay Pooja B. Naik Nataraj Sanna Kotrappanavar Debasis Ghosh Realizing Favorable Synergism Toward Efficient Hydrogen Evolution Reaction with Heterojunction Engineered Cu7S4/CuS2/NiS2 and Functionalized Carbon Sheet Heterostructures Advanced Materials Interfaces biomass derived carbon hydrogen evolution reaction mixed metal sulfides nanocomposites overpotential |
| title | Realizing Favorable Synergism Toward Efficient Hydrogen Evolution Reaction with Heterojunction Engineered Cu7S4/CuS2/NiS2 and Functionalized Carbon Sheet Heterostructures |
| title_full | Realizing Favorable Synergism Toward Efficient Hydrogen Evolution Reaction with Heterojunction Engineered Cu7S4/CuS2/NiS2 and Functionalized Carbon Sheet Heterostructures |
| title_fullStr | Realizing Favorable Synergism Toward Efficient Hydrogen Evolution Reaction with Heterojunction Engineered Cu7S4/CuS2/NiS2 and Functionalized Carbon Sheet Heterostructures |
| title_full_unstemmed | Realizing Favorable Synergism Toward Efficient Hydrogen Evolution Reaction with Heterojunction Engineered Cu7S4/CuS2/NiS2 and Functionalized Carbon Sheet Heterostructures |
| title_short | Realizing Favorable Synergism Toward Efficient Hydrogen Evolution Reaction with Heterojunction Engineered Cu7S4/CuS2/NiS2 and Functionalized Carbon Sheet Heterostructures |
| title_sort | realizing favorable synergism toward efficient hydrogen evolution reaction with heterojunction engineered cu7s4 cus2 nis2 and functionalized carbon sheet heterostructures |
| topic | biomass derived carbon hydrogen evolution reaction mixed metal sulfides nanocomposites overpotential |
| url | https://doi.org/10.1002/admi.202201478 |
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