Academic Journal
Bimetallic AgNi nanoparticles anchored onto MOF-derived nitrogen-doped carbon nanostrips for efficient hydrogen evolution
| Title: | Bimetallic AgNi nanoparticles anchored onto MOF-derived nitrogen-doped carbon nanostrips for efficient hydrogen evolution |
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| Authors: | Dandan Chen, Cheng Han, Qiuhong Sun, Junyang Ding, Qi Huang, Ting-Ting Li, Yue Hu, Jinjie Qian, Shaoming Huang |
| Source: | Green Energy & Environment, Vol 8, Iss 1, Pp 258-266 (2023) |
| Publisher Information: | KeAi Communications Co., Ltd., 2023. |
| Publication Year: | 2023 |
| Collection: | LCC:Renewable energy sources LCC:Ecology |
| Subject Terms: | Metal–organic framework, Carbon nanomaterial, AgNi alloy, Hydrogen evolution, Electrocatalysis, Renewable energy sources, TJ807-830, Ecology, QH540-549.5 |
| More Details: | Hydrogen energy has long been recognized as a clean alternative to conventional fossil fuels, which can be applied in a wide range of transportation and power generation applications. The rational design and engineering of high-performance and robust catalysts for hydrogen evolution reaction (HER) shows not a great significance but a challenge for efficient electrochemical water splitting. Herein, a new type of Ni-based Ni-ABDC precursor has been obtained, which leads to the formation of N-doped porous carbon nanomaterials uniformly coated with well-proportioned bimetallic AgNi alloys via a stepwise strategy. To their credit, all samples of AgNi/NC-X are structurally calcined from the pristine AgNi-ABDC-X by tuning the different concentration of AgNO3, which means all of them maintain the vermicelli-like morphology compared with Ni-ABDC. The series of AgNi/NC-X materials can be regarded as effective electrocatalysts for HER both in acidic and alkaline media, but an acid-leaching phenomenon is observed. Among them, the as-prepared AgNi/NC-2 exhibits a low overpotential of 103 mV at the current density of 10 mA cm−2 and decent durability with a high retention rate of 90.9% after 10 h in 1.0 mol L−1 KOH electrolyte. The compelling HER properties of AgNi/NC-2 can be attributed to the synergistic effect between the hierarchical carbon materials, partial N-doping and abundant AgNi alloys. Meanwhile, this study provides a practicable method for the development of efficient HER electrocatalysts for energy applications, which can be conveniently prepared through the reasonable introduction of active components in the crystalline inorganic-organic precursors. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2468-0257 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2468025721000650; https://doaj.org/toc/2468-0257 |
| DOI: | 10.1016/j.gee.2021.04.003 |
| Access URL: | https://doaj.org/article/268f3c24938e434fbb9d89f375c87219 |
| Accession Number: | edsdoj.268f3c24938e434fbb9d89f375c87219 |
| Database: | Directory of Open Access Journals |
| ISSN: | 24680257 |
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| DOI: | 10.1016/j.gee.2021.04.003 |
| Published in: | Green Energy & Environment |
| Language: | English |