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ZIF-8 derived graphene-based nitrogen-doped porous carbon sheets as highly efficient and durable oxygen reduction electrocatalysts.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhong, Hai-xia Wang, Jun Zhang, Yu-wei Xu, Wei-Lin Xing, Wei Xu, Dan Zhang, Yuefei Zhang, Xin-Bo |
| Copyright Year | 2014 |
| Abstract | Nitrogen-doped carbon (NC) materials have been proposed as next-generation oxygen reduction reaction (ORR) catalysts to significantly improve scalability and reduce costs, but these alternatives usually exhibit low activity and/or gradual deactivation during use. Here, we develop new 2D sandwich-like zeolitic imidazolate framework (ZIF) derived graphene-based nitrogen-doped porous carbon sheets (GNPCSs) obtained by in situ growing ZIF on graphene oxide (GO). Compared to commercial Pt/C catalyst, the GNPCSs show comparable onset potential, higher current density, and especially an excellent tolerance to methanol and superior durability in the ORR. Those properties might be attributed to a synergistic effect between NC and graphene with regard to structure and composition. Furthermore, higher open-circuit voltage and power density are obtained in direct methanol fuel cells. |
| Starting Page | 4403 |
| Ending Page | 4423 |
| Page Count | 21 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://energy.ciac.jl.cn/userfiles/file/2015031715205985.pdf |
| PubMed reference number | 25331053v1 |
| Alternate Webpage(s) | https://doi.org/10.1002/anie.201408990 |
| DOI | 10.1002/anie.201408990 |
| Journal | Angewandte Chemie |
| Volume Number | 53 |
| Issue Number | 51 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Graphene Methanol Resource Description Framework positive regulation of reactive oxygen species biosynthetic process voltage |
| Content Type | Text |
| Resource Type | Article |
