지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 오택현
- 발행연도
- 2022
- 저작권
- 창원대학교 논문은 저작권에 의해 보호받습니다.
이용수35
이 논문의 연구 히스토리 (5)
2021
2020
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초록· 키워드
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In this research, Ag&Ni electrocatalyst supported on multiwalled carbon nanotubes (MWCNTs) was developed for the cathode electrocatalysts of direct borohydride/hydrogen peroxide fuel cells (DBHPFCs) by considering
three indicators (electrochemical reactions, decomposition reactions and, economics) unlike previous studies.
First, Au, Ag and Ni electrocatalysts with relatively excellent three indicators were selected with reference to the results of previous studies. Selected electrocatalysts were evaluated for performance. As of result, Ag/MWCNTs indicated relatively remarkable electrochemical reactions and lower decomposition reactions. If Ag/MWCNTs use the cathode catalyst of DBHPFCs, they will operate with higher electrochemical reactions and
lower decomposition reactions. Also, Ag electrocatalyst has more remarkable economics than Au electrocatalyst.
Based on the results, Ag and Ni electrocatalysts composed a bimetallic electrocatalyst because of their excellent three indicators. Ag&Ni/MWCNTs of various atomic percentage ratios were prepared. Among the bimetallic electrocatalysts, Ag25Ni75/MWCNTs indicated the best electrochemical reaction and had almost the same decomposition reaction with Ag/MWCNTs at high current densities. Furthermore, Ag25Ni75/MWCNTs could improve the economics of DBHPFC owing to inexpensive Ni.
three indicators (electrochemical reactions, decomposition reactions and, economics) unlike previous studies.
First, Au, Ag and Ni electrocatalysts with relatively excellent three indicators were selected with reference to the results of previous studies. Selected electrocatalysts were evaluated for performance. As of result, Ag/MWCNTs indicated relatively remarkable electrochemical reactions and lower decomposition reactions. If Ag/MWCNTs use the cathode catalyst of DBHPFCs, they will operate with higher electrochemical reactions and
lower decomposition reactions. Also, Ag electrocatalyst has more remarkable economics than Au electrocatalyst.
Based on the results, Ag and Ni electrocatalysts composed a bimetallic electrocatalyst because of their excellent three indicators. Ag&Ni/MWCNTs of various atomic percentage ratios were prepared. Among the bimetallic electrocatalysts, Ag25Ni75/MWCNTs indicated the best electrochemical reaction and had almost the same decomposition reaction with Ag/MWCNTs at high current densities. Furthermore, Ag25Ni75/MWCNTs could improve the economics of DBHPFC owing to inexpensive Ni.
목차
Ⅰ. 서론 ?????????????????????????????????????????????????????????????????????????????????????????????????? 11. 연구배경 ?????????????????????????????????????????????????????????????????????????????????????????? 11) 4차산업 ?????????????????????????????????????????????????????????????????????????????????????????? 12) 지능형 로봇 ??????????????????????????????????????????????????????????????????????????????????? 23) 무인이동형 로봇 ??????????????????????????????????????????????????????????????????????????? 44) 무인이동형 로봇의 동력원 ??????????????????????????????????????????????????????????? 55) 무산소 환경용 동력원 ?????????????????????????????????????????????????????????????????? 66) 수소연료전지 ????????????????????????????????????????????????????????????????????????????????? 62. 무산소환경용 연료전지 ??????????????????????????????????????????????????????????????????? 81) DBHPFC 작동원리 ??????????????????????????????????????????????????????????????????????? 82) DBHPFC 구성 ?????????????????????????????????????????????????????????????????????????????? 93) DBHPFC 장단점 ?????????????????????????????????????????????????????????????????????????? 11(1) DBHPFC 장점 ???????????????????????????????????????????????????????????????????????? 11(2) DBHPFC 단점 ???????????????????????????????????????????????????????????????????????? 124) DBHPFC 연구현황 ?????????????????????????????????????????????????????????????????????? 133. 연구 목적 ???????????????????????????????????????????????????????????????????????????????????????? 14Ⅱ. 실험방법 ??????????????????????????????????????????????????????????????????????????????????????????? 181. 촉매 제작 ???????????????????????????????????????????????????????????????????????????????????????? 181) 단일 촉매 제작 ????????????????????????????????????????????????????????????????????????????? 182) 이원 촉매 제작 ????????????????????????????????????????????????????????????????????????????? 192. 전극 제작 ???????????????????????????????????????????????????????????????????????????????????????? 203. 전해질 세척 ???????????????????????????????????????????????????????????????????????????????????? 214. 성능평가 준비 ???????????????????????????????????????????????????????????????????????????????? 225. 촉매 및 전극 분석 준비 ???????????????????????????????????????????????????????????????? 24Ⅲ. 본론 ?????????????????????????????????????????????????????????????????????????????????????????????????? 251. 환원극 단일 촉매 ?????????????????????????????????????????????????????????????????????????? 251) 촉매 및 전극 분석 ?????????????????????????????????????????????????????????????????????? 252) 성능평가 ??????????????????????????????????????????????????????????????????????????????????????? 272. 환원극 이원 촉매 ?????????????????????????????????????????????????????????????????????????? 301) 촉매 및 전극 분석 ??????????????????????????????????????????????????????????????????????? 302) 성능평가 ?????????????????????????????????????????????????????????????????????????????????????? 333. 온도에 대한 영향 ?????????????????????????????????????????????????????????????????????????? 371) 단일 촉매 ????????????????????????????????????????????????????????????????????????????????????? 372) 이원 촉매 ???????????????????????????????????????????????????????????????????????????????????? 404. 안정성 평가 ????????????????????????????????????????????????????????????????????????????????? 421) 단일 촉매 ???????????????????????????????????????????????????????????????????????????????????? 422) 이원 촉매 ??????????????????????????????????????????????????????????????????????????????????? 44Ⅳ 결론 ??????????????????????????????????????????????????????????????????????????????????????????????????? 461. 요약 ???????????????????????????????????????????????????????????????????????????????????????????????? 462. 제언 ???????????????????????????????????????????????????????????????????????????????????????????????? 47참고문헌 ????????????????????????????????????????????????????????????????????????????????????????????????? 49Abstract ????????????????????????????????????????????????????????????????????????????????????????????????? 54부록 ???????????????????????????????????????????????????????????????????????????????????????????????????????? 55감사의 글 ??????????????????????????????????????????????????????????????????????????????????????????????? 57
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