A Freestanding Single‐Wall Carbon Nanotube Film Decorated with N‐Doped Carbon‐Encapsulated Ni Nanoparticles as a Bifunctional Electrocatalyst for Overall Water Splitting
Abstract Noble‐metal free, cost‐effective, and highly stable catalysts with efficient activity for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) have attracted tremendous research interest in recent years. Here, a flexible, self‐standing hybrid film comprising a...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-06-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.201802177 |
| _version_ | 1819119637815623680 |
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| author | Abdul Majeed Peng‐Xiang Hou Feng Zhang Hassina Tabassum Xin Li Guo‐Xian Li Chang Liu Hui‐Ming Cheng |
| author_facet | Abdul Majeed Peng‐Xiang Hou Feng Zhang Hassina Tabassum Xin Li Guo‐Xian Li Chang Liu Hui‐Ming Cheng |
| author_sort | Abdul Majeed |
| collection | DOAJ |
| description | Abstract Noble‐metal free, cost‐effective, and highly stable catalysts with efficient activity for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) have attracted tremendous research interest in recent years. Here, a flexible, self‐standing hybrid film comprising a N‐doped single‐wall carbon nanotube (SWCNT) network on which are anchored Ni nanoparticles encapsulated by a monolayer of N‐doped carbon (NCNi) is reported. The films are prepared by floating catalyst chemical vapor deposition followed by NH3 treatment. The material obtained at optimum conditions shows excellent bifunctional electrocatalytic activity in alkaline media with low overpotentials of 190 and 270 mV for HER and OER, respectively, to reach a current density of 10 mA cm−2. A current density of 10 mA cm−2 at 1.57 V is achieved when this freestanding and binder‐free rod‐shaped NCNi/SWCNT assembly is used as cathode and anode in 1 m KOH solution for overall water splitting, presenting one of the best values reported to date. |
| first_indexed | 2024-12-22T06:07:57Z |
| format | Article |
| id | doaj.art-101c9ecfd92e46038a3073744422ec09 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-12-22T06:07:57Z |
| publishDate | 2019-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-101c9ecfd92e46038a3073744422ec092022-12-21T18:36:20ZengWileyAdvanced Science2198-38442019-06-01612n/an/a10.1002/advs.201802177A Freestanding Single‐Wall Carbon Nanotube Film Decorated with N‐Doped Carbon‐Encapsulated Ni Nanoparticles as a Bifunctional Electrocatalyst for Overall Water SplittingAbdul Majeed0Peng‐Xiang Hou1Feng Zhang2Hassina Tabassum3Xin Li4Guo‐Xian Li5Chang Liu6Hui‐Ming Cheng7Shenyang National Laboratory for Materials Science Institute of Metal Research (IMR) Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 ChinaShenyang National Laboratory for Materials Science Institute of Metal Research (IMR) Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 ChinaShenyang National Laboratory for Materials Science Institute of Metal Research (IMR) Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 ChinaBeijing Key Laboratory for Theory and Technology of Advanced Battery Materials Department of Materials Science and Engineering College of Engineering Peking University Beijing 100871 ChinaShenyang National Laboratory for Materials Science Institute of Metal Research (IMR) Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 ChinaShenyang National Laboratory for Materials Science Institute of Metal Research (IMR) Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 ChinaShenyang National Laboratory for Materials Science Institute of Metal Research (IMR) Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 ChinaShenyang National Laboratory for Materials Science Institute of Metal Research (IMR) Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 ChinaAbstract Noble‐metal free, cost‐effective, and highly stable catalysts with efficient activity for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) have attracted tremendous research interest in recent years. Here, a flexible, self‐standing hybrid film comprising a N‐doped single‐wall carbon nanotube (SWCNT) network on which are anchored Ni nanoparticles encapsulated by a monolayer of N‐doped carbon (NCNi) is reported. The films are prepared by floating catalyst chemical vapor deposition followed by NH3 treatment. The material obtained at optimum conditions shows excellent bifunctional electrocatalytic activity in alkaline media with low overpotentials of 190 and 270 mV for HER and OER, respectively, to reach a current density of 10 mA cm−2. A current density of 10 mA cm−2 at 1.57 V is achieved when this freestanding and binder‐free rod‐shaped NCNi/SWCNT assembly is used as cathode and anode in 1 m KOH solution for overall water splitting, presenting one of the best values reported to date.https://doi.org/10.1002/advs.201802177bifunctional electrocatalystscarbon‐encapsulated nanoparticlesfreestanding filmsNi nanoparticlesoverall water splittingsingle‐walled carbon nanotubes |
| spellingShingle | Abdul Majeed Peng‐Xiang Hou Feng Zhang Hassina Tabassum Xin Li Guo‐Xian Li Chang Liu Hui‐Ming Cheng A Freestanding Single‐Wall Carbon Nanotube Film Decorated with N‐Doped Carbon‐Encapsulated Ni Nanoparticles as a Bifunctional Electrocatalyst for Overall Water Splitting Advanced Science bifunctional electrocatalysts carbon‐encapsulated nanoparticles freestanding films Ni nanoparticles overall water splitting single‐walled carbon nanotubes |
| title | A Freestanding Single‐Wall Carbon Nanotube Film Decorated with N‐Doped Carbon‐Encapsulated Ni Nanoparticles as a Bifunctional Electrocatalyst for Overall Water Splitting |
| title_full | A Freestanding Single‐Wall Carbon Nanotube Film Decorated with N‐Doped Carbon‐Encapsulated Ni Nanoparticles as a Bifunctional Electrocatalyst for Overall Water Splitting |
| title_fullStr | A Freestanding Single‐Wall Carbon Nanotube Film Decorated with N‐Doped Carbon‐Encapsulated Ni Nanoparticles as a Bifunctional Electrocatalyst for Overall Water Splitting |
| title_full_unstemmed | A Freestanding Single‐Wall Carbon Nanotube Film Decorated with N‐Doped Carbon‐Encapsulated Ni Nanoparticles as a Bifunctional Electrocatalyst for Overall Water Splitting |
| title_short | A Freestanding Single‐Wall Carbon Nanotube Film Decorated with N‐Doped Carbon‐Encapsulated Ni Nanoparticles as a Bifunctional Electrocatalyst for Overall Water Splitting |
| title_sort | freestanding single wall carbon nanotube film decorated with n doped carbon encapsulated ni nanoparticles as a bifunctional electrocatalyst for overall water splitting |
| topic | bifunctional electrocatalysts carbon‐encapsulated nanoparticles freestanding films Ni nanoparticles overall water splitting single‐walled carbon nanotubes |
| url | https://doi.org/10.1002/advs.201802177 |
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