|
|
| Type |
Poster Presentation |
| Area |
전기화학 |
| Room No. |
포스터발표장 |
| Time |
4월 21일 (금요일) 13:00~14:30 |
| Code |
ELEC.P-541 |
| Subject |
Electrochemical investigation of High-performance Electrocatalyst coupled with V2O5 Inverse Opal Photoelectrode to improve the Oxygen evolution reaction |
| Authors |
AR.Maheswari, 강순형1,*
전남대학교 화학과, Korea
1전남대학교 화학교육과, Korea
|
| Abstract |
Semiconductor metal oxides are one of the most interesting materials for photoelectrochemical (PEC) applications due to the solar energy is considered as a clean and renewable method for hydrogen production. Vanadium oxide (V2O5, Eg = 2.8 eV) has drawn considerable interest recently because of its surface catalytic properties, optical properties. In this work, we developed 3D inverse opal architecture with Vanadium pentoxide, which has offered the light-harvesting and charge collection properties was performed using the polystyrene opal template with a size of approximately 450 nm. Upon this template, V2O5 inverse opal (IO) film fabricated through spin-coating method.We found that the optimized V2O5 IOs samples yielded the photocurrent density of ~1mA/cm2 vs. NHE in 05M Na2SO4 aqueous solution under 1 sun illumination condition.However, V2O5 Photocatalyst has suffered by the large overpotential that limits the photoelectrochemical performance(PEC). In order to minimize the overpotential, we modified the photocatalyst with an effective electrocatalyst.Subsequently, the role of electrocatalyst and characterization part will be discussed in detail.
Keywords: V2O5, Opal template, Photoelectrochemical water splitting, Electrocatalyst.
|
| E-mail |
31maheswari@gmail.com |
|
119th General Meeting of the KCS