| 학회 | 한국재료학회 |
| 학술대회 | 2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지) |
| 권호 | 26권 1호 |
| 발표분야 | C. 에너지 재료 분과 |
| 제목 | Vertically grown MoSX on CNT-rGO composite paper as efficient catalysts for hydrogen evolution reaction |
| 초록 | Hydrogen generation from the direct splitting of water by electrocatalysis is regarded as a promising and renewable solution for the energy crisis. Recently, transition metal dichalcogenides (TMDs) materials have attracted a great deal of attention in the field of electrocatalysis for water splitting, due to their unique crystal structure, electronic and optical properties as well as their various applications. Herein, we report a composite structure composed of vertically grown molybdenum disulfide (MoSX) nanosheets supported by conductive carbon nanotube–reduced graphene oxide (CNT–rGO) on Vietnamese traditional paper (MoSX/CNT–rGO/VTP) for a high-performance electrochemical hydrogen evolution reaction (HER).The catalyst exhibits excellent HER electrocatalytic activity including a low onset potential of 190 mV, Tafel slope of 59 mV dec−1, and excellent stability in an acidic electrolyte solution. The excellent catalytic performance can be attributed to the abundant active edges provided by the vertically aligned MoSX nanosheets, as well as the effective electron transport provided by the CNT–rGO conductive substrate. Therefore, our study demonstrates an inexpensive and simple method to facilitate the large-scale application of non-noble catalysts. In addition, the method can be extended to the development of other transition metal dichalcogenide composite structures for electrochemical applications. Acknowledgements This work was funded by the Vietnam National Foundation for Science and Technology Development (NAFOSTED) (grant number 103.99-2016.95) and the Basic Research Laboratory of the NRF funded by the Korean government (2018R1A4A1022647). |
| 저자 | Mahider teklagne1, Soo Young Kim2 |
| 소속 | 1Chung Ang Univ., 2Korea Univ. |
| 키워드 | MoS<SUB>X</SUB> vertical alignment; rGO; CNT |
