摘要
Molybdenum oxide films were fabricated successfully by spin coating from Li＋- doped peroxo- polymolybdate solution via sol- gel technique.Their electrochemical and electrochromic properties were investigated by cyclic voltammetry and in- situ UV transmittance measurements.The results showed that the films possessed excellent electrochemical stability and reversibility.The electrochromic mechanism of the MoO3 was discussed by using results obtained from X- ray photoelectron spectroscopy (XPS).The results showed that the most part of the Mo6＋ in MoO3 film was reduced to Mo5＋ and Mo4＋ ions during the Li＋ intercalation process,Mo4＋ was oxidized to Mo5＋ and part of Mo5＋ was oxidized to Mo6＋ again during the Li＋ deintercalation process.So it was considered that Mo4＋ ions existed in the colored MoO3 films.
Molybdenum oxide films were fabricated successfully by spin coating from Li+-doped peroxo-polymolybdate solution via sol-gel technique, Their electrochemical and electrochromic properties were investigated by cyclic voltammetry and in-situ UV transmittance measurements. The results showed that the films possessed excellent electrochemical stability and reversibility. The electrochromic mechanism of the MoO3 was discussed by using results obtained from X-ray photoelectron spectroscopy (XPS). The results showed that the most part of the Mo6+ in MoO3 film was reduced to Mo5+ and Mo4+ ions during the Li+ intercalation process, Mo4+ was oxidized to Mo5+ and part of Mo4+ was oxidized to Mo6+ again during the Li+ deintercalation process. So it was considered that Mo4+ ions existed in the colored MoO3 films.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2001年第1期79-82,共4页
Acta Physico-Chimica Sinica
基金
国家自然科学基金!(59782006及 59932040- 2)
国家攀登计划 (07- 01)资助
