ENGLISH |
中国科研实验室
| 发表年度： | 2017 |
|---|---|
| 期： | 35 |
| 卷： | 9 |
| 页： | 29744-29752 |
| 摘要： | Metal-free catalysts for oxygen reduction reaction (ORR) are the desired materials for low-cost proton exchange membrane fuel cells. Graphdiyne (GDY), a novel type of two-dimensional carbon allotrope, is featured by its sp- and sp(2)-hybridized carbon atoms, different from the other existing carbon materials. Thus, nitrogen (N) can be doped in new styles by substituting sp-hybridized carbon atoms, effective for ORR, which has been displayed in this study using both experimental and theoretical technologies. The N-doped GDY was synthesized with pyridine and NH3 as N sources successively, expressing an electrocatalytic activity at a potential above 0.8 V similar to that of commercial Pt/C for ORR in alkaline solution and higher stability and better methanol tolerance than those of Pt/C. |
| 刊物名称： | ACS APPLIED MATERIALS & INTERFACES |
| 影响因子： | 8.456 |
