| Autor: |
Zhen‐Feng Huang, Jiajia Song, Yonghua Du, Shuo Dou, Libo Sun, Wei Chen, Kaidi Yuan, Zhengfei Dai, Xin Wang |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Carbon Energy, Vol 1, Iss 1, Pp 77-84 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2637-9368 |
| DOI: |
10.1002/cey2.3 |
| Popis: |
Abstract Tuning and optimization of electronic structures and related reaction energetics are critical toward the rational design of efficient electrocatalysts. Herein, experimental and theoretical calculation demonstrate the originally inert N site within polyaniline (PANI) can be activated for hydrogen evolution by proper d‐π interfacial electronic coupling with metal oxide. As a result, the as‐synthesized WO3 assemblies@PANI via a facile redox‐induced assembly and in situ polymerization, exhibits the electrocatalytic production of hydrogen better than other control samples including W18O49@PANI and most of the reported nobel‐metal‐free electrocatalysts, with low overpotential of 74 mV at 10 mA·cm−2 and small Tafel slope of 46 mV·dec−1 in 0.5M H2SO4 (comparable to commercial Pt/C). The general efficacy of this methodology is also validated by extension to other metal oxides such as MoO3 with similar improvements. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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