| 第一作者： | Zhang, F (Zhang, Feng); Zhang, DQ (Zhang, Dongqing); Liu, WQ (Liu, Wenqi); Miao, JY (Miao, Jiyuan); Li, XJ (Li, Xiaojin); |
|---|---|
| 联系作者： | Zhang, F (Zhang, Feng); Zhang, DQ (Zhang, Dongqing); Liu, WQ (Liu, Wenqi); Miao, JY (Miao, Jiyuan); Li, XJ (Li, Xiaojin); |
| 发表年度： | 2021 |
| 期： | 9 |
| 卷： | 4 |
| 页： | 9881-9890 |
| 摘要： | Developing a feasible method to massively fabricate low-cost and efficient oxygen reduction reaction (ORR) catalysts is highly anticipated to the commercialization of fuel cells. In this work, N atoms were doped into inert sp(2) configuration to alter the spin and charge distribution in the carbon matrix. The Pt/H-2-N-C catalyst was successfully prepared by embedding ultralow Pt nanoparticles on N-based carbon. Results indicated that the protonated N-groups at edge sites efficiently regulated the absorption of the PtCl62- anion and widely limited the migration of Pt species at 1000 degrees C. The acquired Pt/H-2-N-C electrocatalyst exhibited high ORR performance in the acidic electrolyte. The high-temperature proton exchange membrane fuel cell (HT-PEMFC) measurement illustrated that the open-circuit voltage and power density of the Pt/H-2-N-C catalyst were higher than those of the commercial 20% Pt/C at 150 degrees C. This work provided a facile strategy to obtain efficient and low-cost Pt catalysts for ORR and HT-PEMFCs. |
| 刊物名称： | ACS APPLIED ENERGY MATERIALS |
| 影响因子： | 0 |
| 全文链接： | https://pubs.acs.org/doi/10.1021/acsaem.1c01898 |
