| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
나노 |
| 제목 |
Microscopic evidence for strong interaction between Pd and graphene oxide that results in metal-decoration-induced reduction |
| 초록 |
We investigate the relationship between the microstructure and electrical properties of metal-decorated graphene oxide (GO) that is associated with the interaction energy between noble metals and GO. The strong interaction between Pd and GO leads to faster coverage and pseudo-epitaxial growth. The origin of the pseudo-epitaxial growth for the Pd-decorated GO was related to the formation of a PdO interlayer, which is the outcome of the interaction between Pd and oxygen functional groups in GO. The formation of a PdO interlayer diminishes the lattice mismatch of Pd on GO and reduces GO by consuming the oxygen functional groups. Moderate Pd decoration can enhance hydrogen sensing and hydrogen evolution properties of GO. This study demonstrates the unique growth mode of Pd on GO that results in metal-decoration-induced reduction of GO, providing new insights and a deep understanding to design and control the novel functionalities of GO achieved through decoration with various metals. |
| 저자 |
김태민, 장호원
|
| 소속 |
서울대 |
| 키워드 |
Graphene Oxide; Palladium; Catalyst; TEM
|
| E-Mail |
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