ENGLISH |
中国科研实验室
| 第一作者： | Cao, LJ (Cao, Lijuan); Wang, XL (Wang, Xilong); Yang, C (Yang, Chen); Lu, JJ (Lu, Jiajia); Shi, XY (Shi, Xiaoyue); Zhu, HW (Zhu, Hongwei); Liang, HP (Liang, Han-Pu); |
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| 联系作者： | Cao, LJ (Cao, Lijuan); Wang, XL (Wang, Xilong); Yang, C (Yang, Chen); Lu, JJ (Lu, Jiajia); Shi, XY (Shi, Xiaoyue); Zhu, HW (Zhu, Hongwei); Liang, HP (Liang, Han-Pu); |
| 发表年度： | 2021 |
| 期： | 1 |
| 卷： | 9 |
| 页： | 189-196 |
| 摘要： | The highly active bimetallic single-atom electrocatalysts are desirable for the oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) but remain challenging. Herein, Fe/Pt single-atom bifunctional electrocatalysts (Fe1Pt1/NC) are initially fabricated by nitrogen doping during the pyrolysis of porphyra and adsorbed urea at high temperature with subsequent nitrogen anchoring of Pt4+ in aqueous solution with the as-synthesized nitrogen-doped carbon. The as-synthesized Fe1Pt1/NC electrocatalysts have been intensively characterized by HAADF-STEM, XAFS, HRTEM, XRD, and Raman analysis. Particularly, the Fe1Pt1/NC presents excellent electrocatalytic activity toward HER, with relatively low overpotential of 27 mV at 10 mA cm(-2) and small Tafel slopes of 28 mV Furthermore, the Fe1Pt1/NC electrocatalyst possesses superior ORR activity with an onset potential of 1.04 V and half-wave potential of 0.91 V. This work provides a feasible way to synthesize electrocatalysts with abundant single-atom sites using renewable biomass as a precursor. |
| 刊物名称： | ACS SUSTAINABLE CHEMISTRY & ENGINEERING |
| 影响因子： | 6.97 |
| 全文链接： | http://pubs.acs.org/doi/10.1021/acssuschemeng.0c06558 |
