| 학회 | 한국화학공학회 |
| 학술대회 | 2020년 가을 (10/14 ~ 10/16, e-컨퍼런스) |
| 권호 | 26권 1호, p.701 |
| 발표분야 | 재료 |
| 제목 | Carbon Dot Templated Metal Double Hydroxide Composite for Hydrogen Evolution Reaction |
| 초록 | Hydrogen being an efficient energy carrier suits efficiently as an alternative fuel source. Electrocatalytic water splitting is an effective way to achieve hydrogen evolution reaction (HER) through a simple proton electron-transfer mechanism. In this study, a carbon dot (CD) based Ni-Co double hydroxide nanocomposite has been designed for HER. The structural features of the composites were analyzed thoroughly through proper microscopic studies. The overpotential was 234 mV for the hydrogen evolution reaction for a current density of 10 mAcm-2 with a Tafel slope of 47 mVdec-1. The catalyst showed significant activity over a wide range of pH. The stability was tested over 10hr. The catalytic property was attributed to the intrinsic layered structure, interconnected nanoarray configuration, and unique redox characteristics. CDs provided a higher active area for catalysis and electronic environment. This study highlights the use of a CD support for the synthesis of low-cost metal double hydroxide electrocatalyst. Keywords Carbon dot; bimetallic composite; synergism; electrocatalysis; hydrogen evolution reaction. |
| 저자 | Jana Jayasmita1, YEN-LINH THI NGO2, Wang Linlin3, TRAN VAN PHUC2, HYE JIN LEE3, HUYNH NGOC DIEM3, 허승현3 |
| 소속 | 1Univ. OF ULSAN, 2Univ. of ulsan, 3Univ. of Ulsan |
| 키워드 | 화공재료 |
| 원문파일 | 초록 보기 |
