| 학회 |
한국화학공학회 |
| 학술대회 |
2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터) |
| 권호 |
27권 2호, p.2133 |
| 발표분야 |
재료 |
| 제목 |
Cellulose-induced high surface coverage metal nanoparticle generation by the carbothermal shock for electrocatalytic CO2 reduction |
| 초록 |
Metal nanoparticles (NPs) have gained broad interest in various applications. The carbothermal shock (CTS) method has attracted considerable attention in recent years for the formation of finely controlled single to poly-elemental alloy NPs with facile and fast synthesis. However, formation of high surface coverage NPs with minimized exposure of carbon substrate has not been realized yet in the CTS method. Therefore, expansion of CTS method to various potential electrochemical applications.By introducing cellulose as the carbon substrate, we synthesized high surface coverage over 85% of various single and poly-elemental NPs. Additionally, we figured out that the mechanism of NPs formation with the high surface density is strongly related to the change of the chemical state of the cellulose. The application field of the CTS method was expanded to electrocatalytic CO2RR for the first time by achieving high surface coverage of Cu NPs. High surface coverage of NPs and minimized exposure of carbon support facilitated CO2RR with suppression of serious competitive hydrogen evolution and unwanted reactions. |
| 저자 |
송지윤1, 김찬솔2, 정현수3, 정희태2
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| 소속 |
1KAIST / KIST, 2KAIST, 3KIST |
| 키워드 |
소재공정 |
| E-Mail |
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| 원문파일 |
초록 보기 |
