Facile synthesis of tin-doped mayenite electride composite as a non-noble metal durable electrocatalyst for oxygen reduction reaction (ORR)
文献类型：期刊论文
| 作者 | Yang, Minghui; Khan, Karim; Tareen, Ayesha Khan; Li, Jia; Khan, Usman; Nairan, Adeela; Yuan, Yao; Zhang, Xuyang; Ouyang, Zhengbiao |
| 刊名 | DALTON TRANSACTIONS
 |
| 出版日期 | 2018 |
| 卷号 | 47期号:38页码:13498-13506 |
| 关键词 | Dot 7al(2)o(3) Electride Reduced Graphene Oxide Organic Framework Stable Electride Single-crystal Hydrogen 12cao-center-dot-7al(2)o(3) Fabrication Anions Co |
| 英文摘要 | D In this study, we synthesized nanosized Sn-doped C12A7:e(-) (C12Al7-xSnx:e(-), where x = 0.20 to 1) composite with high surface area of 244 m(2) g(-1). An increasing trend in conductivity of Sn-doped C12A7:e(-) composites was observed at 300 K: 24 S cm(-1), 68 S cm(-1), 190 S cm(-1) and 290 S cm(-1), at doping levels of x = 0.20, 0.40, 0.80, and 1, respectively. Sn-doped C12A7:e(-), with and without reduced graphene oxide (rGO), acts as a less expensive and highly active and durable electrocatalyst in the oxygen reduction reaction (ORR) for fuel cells. In the case of C(12)A(7-x)Sn(x):e(-) (where x = 1), calculated onset potential and current density were comparable to the commercially available 20% Pt/C electrode. Moreover, significant improvement was observed for Sn-doped C12A7:e(-) (doping level x = 1) with rGO composite. The ORR current density was about 5.9 mA cm(-2), which was higher than that of Pt/C (5.2 mA cm(-2)). Our investigation of the effect of cation doping on structural and electrical properties of Sn-doped C12A7:e(-) composites shows that these results manifested the feasibility of this sol-gel method for different element doping. Furthermore, the as-prepared promising non-noble metal catalysts (NNMCs), viz., Sn-doped C12A7:e(-) composite materials, possess intrinsic long-time stability and excellent methanol resistance toward ORR in alkaline media and may serve as a promising alternative to Pt/C materials for ORR in its widespread implementation in fuel cells. |
| 学科主题 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/17129]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Yang, Minghui,Khan, Karim,Tareen, Ayesha Khan,et al. Facile synthesis of tin-doped mayenite electride composite as a non-noble metal durable electrocatalyst for oxygen reduction reaction (ORR)[J]. DALTON TRANSACTIONS,2018,47(38):13498-13506. |
| APA | Yang, Minghui.,Khan, Karim.,Tareen, Ayesha Khan.,Li, Jia.,Khan, Usman.,...&Ouyang, Zhengbiao.(2018).Facile synthesis of tin-doped mayenite electride composite as a non-noble metal durable electrocatalyst for oxygen reduction reaction (ORR).DALTON TRANSACTIONS,47(38),13498-13506. |
| MLA | Yang, Minghui,et al."Facile synthesis of tin-doped mayenite electride composite as a non-noble metal durable electrocatalyst for oxygen reduction reaction (ORR)".DALTON TRANSACTIONS 47.38(2018):13498-13506. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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