Xiao Li
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Xiao Li has a total of 13 co-authors. Here are the top co-authors by number of shared publications:
- Min Liu
School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China
2 shared publications - Changhe Hu
School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China
1 shared publication - Dejuan Sun
Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
1 shared publication - Guojian Jiang
School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, People’s Republic of China
1 shared publication He Fang
1 shared publication- Huhui Fu
School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China
1 shared publication
Latest Publications
- Open Access
- 11 December 2022
- Published by MDPI AG in Nanomaterials
- Vol. 12 (24) , 4419
Enhanced Electrocatalytic Water Oxidation of Ultrathin Porous Co3O4 Nanosheets by Physically Mixing with Au Nanoparticles
Ultrathin porous Co3O4 nanosheets are synthesized successfully, the thickness of which is about three unit-cell dimensions. The enhanced oxygen evolution reaction (OER) performance and electronic interaction between Co3O4 and Au is firstly reported in Co3O4 ultrathin porous nanosheets by physically mixing with Au nanoparticles. With the loading of the Au nanoparticles, the current density of ultrathin porous Co3O4 nanosheets is enhanced from 9.97 to 14.76 mA cm−2 at an overpotential of 0.5 V, and the overpotential required for 10 mA cm−2 decreases from 0.51 to 0.46 V, smaller than that of commercial IrO2 (0.54 V). Furthermore, a smaller Tafel slope and excellent durability are also obtained. Raman spectra, XPS measurement, and X-ray absorption near edge structure spectra (XANES) show that the enhanced OER ascribed to a higher Co2+/Co3+ ratio and quicker charge transfer due to the electronic interaction between Au and ultrathin Co3O4 nanosheets with low-coordinated surface, and Co2+ ions are beneficial for the formation of CoOOH active sites.
- 11 December 2022
- Published by MDPI AG in Nanomaterials
- Vol. 12 (24) , 4419
Open AccessEnhanced Electrocatalytic Water Oxidation of Ultrathin Porous Co3O4 Nanosheets by Physically Mixing with Au Nanoparticles
Ultrathin porous Co3O4 nanosheets are synthesized successfully, the thickness of which is about three unit-cell dimensions. The enhanced oxygen evolution reaction (OER) performance and electronic interaction between Co3O4 and Au is firstly reported in Co3O4 ultrathin porous nanosheets by physically mixing with Au nanoparticles. With the loading of the Au nanoparticles, the current density of ultrathin porous Co3O4 nanosheets is enhanced from 9.97 to 14.76 mA cm−2 at an overpotential of 0.5 V, and the overpotential required for 10 mA cm−2 decreases from 0.51 to 0.46 V, smaller than that of commercial IrO2 (0.54 V). Furthermore, a smaller Tafel slope and excellent durability are also obtained. Raman spectra, XPS measurement, and X-ray absorption near edge structure spectra (XANES) show that the enhanced OER ascribed to a higher Co2+/Co3+ ratio and quicker charge transfer due to the electronic interaction between Au and ultrathin Co3O4 nanosheets with low-coordinated surface, and Co2+ ions are beneficial for the formation of CoOOH active sites.