상세 보기
- Eisa, Tasnim;
- Park, Sung-Gwan;
- Mohamed, Hend Omar;
- Abdelkareem, Mohammad Ali;
- Lee, Jieun;
- ... Yang, Euntae;
- 외 2명
WEB OF SCIENCE
20SCOPUS
22초록
Direct urea/hydrogen peroxide fuel cells (DUHP-FCs) can produce electrical energy by recycling urea-rich wastewater. This study expands the commerciality of DUHP-FC by removing precious metals from their design. Nickel nanorod/nickel foam (NNR/NF) was fabricated using hydrothermal treatment to be used as the anode, and Prussian blue coating was deposited by potentiostatic electrodeposition onto hydrophilic carbon felt at the cathode (PB/CF). The anode exhibited a 7-folds higher current density than bare NF at 0-2 M urea, and lower charge transfer resistance. The cathode reported a high H2O2 reduction current. In addition, fuel cell tests indicated current density dependency on H2O2 concentration and cell voltage dependency on KCl concentration. A competitive maximum power density of 10.6 mW cm(-2) was achieved at 0.98 open circuit voltage and 45 mA cm(-2) maximum current density, in 0.33 M urea vs 2 M KCl and 2 M H2O2, exclusively via diffusive mass transfer. These findings indicate the practical application of DUHP-FC on a large scale. (C) 2021 Elsevier Ltd. All rights reserved.
키워드
- 제목
- Outstanding performance of direct urea/hydrogen peroxide fuel cell based on precious metal-free catalyst electrodes
- 저자
- Eisa, Tasnim; Park, Sung-Gwan; Mohamed, Hend Omar; Abdelkareem, Mohammad Ali; Lee, Jieun; Yang, Euntae; Castano, Pedro; Chae, Kyu-Jung
- 발행일
- 2021-08-01
- 유형
- Article
- 저널명
- Energy
- 권
- 228