Kumar, Jai Jung, Ho Jin Neiber, Rana R. Soomro, Razium Ali Kwon, Young Je Ul Hassan, Naveed Shon, Minyoung Lee, Jin Hong Baek, Kyung-Youl Cho, Kie Yong 2024-01-19T12:03:21Z 2024-01-19T12:03:21Z 2022-04-05 2022-05 0363-907X https://pubs.kist.re.kr/handle/201004/115253 Energy storage devices (ESD) are getting significant attention regarding their ability to reduce fossil fuel usage. Batteries and electrochemical supercapacitors are two well-known ESDs with supercapacitors preferred for their high energy discharge potential. The metal oxides (MOs) with robust redox characteristics are ideal candidates for supercapacitors, although their capacitance still lacks behind the theoretical values. Here, partial reduced or oxygen-deficient MOs have been identified have proven promising to reach the desired capacitance. The introduction of oxygen vacancies into MOs can effectively enhance their electrochemical properties without altering the inherent characteristics of MOs. This review discusses the recent progress on new oxygen-deficient MOs and their performance as a supercapacitor. The importance of oxygen vacancy is described, followed by the traditional synthesis route to producing MOs. The present pathways for generating oxygen vacancies and their analytical assessment are covered in-depth, followed by a section on the most advanced analytical techniques for detecting and interpreting the creation of such vacancies. The influence of oxygen vacancies on the supercapacitive performance of the most researched MOs is provided with the challenges and prospects of oxygen-deficient MOs in supercapacitor application. English John Wiley & Sons Inc. Recent advances in oxygen deficient metal oxides: Opportunities as supercapacitor electrodes Article 10.1002/er.7675 1 International Journal of Energy Research, v.46, no.6, pp.7055 - 7081 International Journal of Energy Research 46 6 7055 7081 N scie scopus 000746709600001 2-s2.0-85123482380 Energy & Fuels Nuclear Science & Technology Energy & Fuels Nuclear Science & Technology Review HIGH-PERFORMANCE SUPERCAPACITOR TIO2 NANOTUBE ARRAYS ENHANCED ELECTROCHEMICAL PERFORMANCE ATOMIC LAYER DEPOSITION REDUCED GRAPHENE OXIDE CORE-SHELL STRUCTURE CARBON NANOTUBES ASYMMETRIC SUPERCAPACITORS CO3O4 NANOSHEETS NANOWIRE ARRAYS metal oxides oxygen deficiency supercapacitors