Strong Electronic Interaction Enhanced Electrocatalysis of Metal Sulfide Clusters Embedded Metal–Organic Framework Ultrathin Nanosheets toward Highly Efficient Overall Water Splitting
Abstract Unique metal sulfide (MS) clusters embedded ultrathin nanosheets of Fe/Ni metal–organic framework (MOF) are grown on nickel foam (NiFe‐MS/MOF@NF) as a highly efficient bifunctional electrocatalyst for overall water splitting. It exhibits remarkable catalytic activity and stability toward bo...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-10-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202001965 |
| _version_ | 1818209264362061824 |
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| author | Ming Zhao Wei Li Junying Li Weihua Hu Chang Ming Li |
| author_facet | Ming Zhao Wei Li Junying Li Weihua Hu Chang Ming Li |
| author_sort | Ming Zhao |
| collection | DOAJ |
| description | Abstract Unique metal sulfide (MS) clusters embedded ultrathin nanosheets of Fe/Ni metal–organic framework (MOF) are grown on nickel foam (NiFe‐MS/MOF@NF) as a highly efficient bifunctional electrocatalyst for overall water splitting. It exhibits remarkable catalytic activity and stability toward both the oxygen evolution reaction (OER, ƞ = 230 mV at 50 mA cm−2) and hydrogen evolution reaction (HER, ƞ = 156 mV at 50 mA cm−2) in alkaline media, and bi‐functionally catalyzes overall alkaline water splitting at a current density of 50 mA cm−2 by 1.74 V cell voltage without iR compensation. The enhancement mechanism is ascribed to the impregnated metal sulfide clusters in the nanosheets, which not only promote the formation of ultrathin nanosheet to greatly enlarge the reaction surface area while offering high electric conductivity, but more importantly, efficiently modulate the electronic structure of the catalytically active atom sites to an electron‐rich state via strong electronic interaction and strengthen the adsorption of oxygenate intermediate to facilitate fast electrochemical reactions. This work reports a highly efficient HER/OER bifunctional electrocatalyst and may shed light on the rational design and synthesis of uniquely structured MOF‐derived catalysts. |
| first_indexed | 2024-12-12T04:57:57Z |
| format | Article |
| id | doaj.art-bc716ec391344fc8a279dfd256a6dbe6 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-12-12T04:57:57Z |
| publishDate | 2020-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-bc716ec391344fc8a279dfd256a6dbe62022-12-22T00:37:19ZengWileyAdvanced Science2198-38442020-10-01720n/an/a10.1002/advs.202001965Strong Electronic Interaction Enhanced Electrocatalysis of Metal Sulfide Clusters Embedded Metal–Organic Framework Ultrathin Nanosheets toward Highly Efficient Overall Water SplittingMing Zhao0Wei Li1Junying Li2Weihua Hu3Chang Ming Li4Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University) Ministry of Education Institute for Clean Energy and Advanced Materials School of Materials and Energy Southwest University Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies Southwest University Chongqing 400715 ChinaKey Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University) Ministry of Education Institute for Clean Energy and Advanced Materials School of Materials and Energy Southwest University Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies Southwest University Chongqing 400715 ChinaKey Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University) Ministry of Education Institute for Clean Energy and Advanced Materials School of Materials and Energy Southwest University Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies Southwest University Chongqing 400715 ChinaKey Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University) Ministry of Education Institute for Clean Energy and Advanced Materials School of Materials and Energy Southwest University Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies Southwest University Chongqing 400715 ChinaKey Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University) Ministry of Education Institute for Clean Energy and Advanced Materials School of Materials and Energy Southwest University Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies Southwest University Chongqing 400715 ChinaAbstract Unique metal sulfide (MS) clusters embedded ultrathin nanosheets of Fe/Ni metal–organic framework (MOF) are grown on nickel foam (NiFe‐MS/MOF@NF) as a highly efficient bifunctional electrocatalyst for overall water splitting. It exhibits remarkable catalytic activity and stability toward both the oxygen evolution reaction (OER, ƞ = 230 mV at 50 mA cm−2) and hydrogen evolution reaction (HER, ƞ = 156 mV at 50 mA cm−2) in alkaline media, and bi‐functionally catalyzes overall alkaline water splitting at a current density of 50 mA cm−2 by 1.74 V cell voltage without iR compensation. The enhancement mechanism is ascribed to the impregnated metal sulfide clusters in the nanosheets, which not only promote the formation of ultrathin nanosheet to greatly enlarge the reaction surface area while offering high electric conductivity, but more importantly, efficiently modulate the electronic structure of the catalytically active atom sites to an electron‐rich state via strong electronic interaction and strengthen the adsorption of oxygenate intermediate to facilitate fast electrochemical reactions. This work reports a highly efficient HER/OER bifunctional electrocatalyst and may shed light on the rational design and synthesis of uniquely structured MOF‐derived catalysts.https://doi.org/10.1002/advs.202001965electronic interactionsmetal–organic frameworksmetal sulfide clustersultrathin nanosheetswater splitting |
| spellingShingle | Ming Zhao Wei Li Junying Li Weihua Hu Chang Ming Li Strong Electronic Interaction Enhanced Electrocatalysis of Metal Sulfide Clusters Embedded Metal–Organic Framework Ultrathin Nanosheets toward Highly Efficient Overall Water Splitting Advanced Science electronic interactions metal–organic frameworks metal sulfide clusters ultrathin nanosheets water splitting |
| title | Strong Electronic Interaction Enhanced Electrocatalysis of Metal Sulfide Clusters Embedded Metal–Organic Framework Ultrathin Nanosheets toward Highly Efficient Overall Water Splitting |
| title_full | Strong Electronic Interaction Enhanced Electrocatalysis of Metal Sulfide Clusters Embedded Metal–Organic Framework Ultrathin Nanosheets toward Highly Efficient Overall Water Splitting |
| title_fullStr | Strong Electronic Interaction Enhanced Electrocatalysis of Metal Sulfide Clusters Embedded Metal–Organic Framework Ultrathin Nanosheets toward Highly Efficient Overall Water Splitting |
| title_full_unstemmed | Strong Electronic Interaction Enhanced Electrocatalysis of Metal Sulfide Clusters Embedded Metal–Organic Framework Ultrathin Nanosheets toward Highly Efficient Overall Water Splitting |
| title_short | Strong Electronic Interaction Enhanced Electrocatalysis of Metal Sulfide Clusters Embedded Metal–Organic Framework Ultrathin Nanosheets toward Highly Efficient Overall Water Splitting |
| title_sort | strong electronic interaction enhanced electrocatalysis of metal sulfide clusters embedded metal organic framework ultrathin nanosheets toward highly efficient overall water splitting |
| topic | electronic interactions metal–organic frameworks metal sulfide clusters ultrathin nanosheets water splitting |
| url | https://doi.org/10.1002/advs.202001965 |
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