논문 상세보기

Influence of Cobalt Content on Phase Formation and Morphology in Co-Zn-O Oxides KCI 등재

Deukhyeon Nam, Sungdo Yun, Bo Eun Choi, Chan Woong Na, Yoon Myung
  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/452783
구독 기관 인증 시 무료 이용이 가능합니다. 4,000원
한국분말재료학회(구 한국분말야금학회) (Korean Powder Metallurgy Institute)
초록

Co–Zn–O–based materials have attracted attention for applications in energy storage and catalysis. In this study, the effects of cobalt incorporation on the crystal phase and particle morphology of Co–Zn–O oxides were investigated. ZnO-based oxides were synthesized using a reflux method, and the influence of cobalt content on phase formation and morphology was systematically evaluated. As the cobalt precursor concentration increased, scanning electron microscopy–energy dispersive X-ray spectroscopy confirmed higher cobalt incorporation. This compositional variation was accompanied by changes in particle morphology, including nanoparticles, disk-like structures, and occasional rod-like features. X-ray diffraction and Raman spectroscopy showed that samples with low cobalt content retained the wurtzite ZnO phase, whereas higher cobalt concentrations led to formation of a ZnO/ZnCo2O4 composite. X-ray photoelectron spectroscopy revealed comparable binding energies among samples, while differences in peak width suggested variations in the local coordination environment of cobalt. These results indicate that cobalt content significantly influences phase composition and particle morphology in Co–Zn–O oxides synthesized under reflux conditions.

키워드
ZnOZnCo2O4Cobalt contentReflux synthesisPhase evolution
목차
서 론
재료 및 방법
결과 및 고찰
    대표변수 선정
    조업환경 군집 도출
    메타그룹별 환경 특성과 공간분포
결 론
사 사
References
저자
  • Deukhyeon Nam(Korea Institute of Industrial Technology, Dongnam Technology Application Division, Busan 46938, Republic of Korea, Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea)
  • Sungdo Yun(Korea Institute of Industrial Technology, Dongnam Technology Application Division, Busan 46938, Republic of Korea, Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea)
  • Bo Eun Choi(Korea Institute of Industrial Technology, Dongnam Technology Application Division, Busan 46938, Republic of Korea, Department of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea)
  • Chan Woong Na(Korea Institute of Industrial Technology, Dongnam Technology Application Division, Busan 46938, Republic of Korea)
  • Yoon Myung(Korea Institute of Industrial Technology, Dongnam Technology Application Division, Busan 46938, Republic of Korea) Corresponding author