Weilai Yu

All Publications

• Tuning Fluorination of Linear Carbonate for Lithium-Ion Batteries JOURNAL OF THE ELECTROCHEMICAL SOCIETY Yu, Z., Yu, W., Chen, Y., Mondonico, L., Xiao, X., Zheng, Y., Liu, F., Hung, S. T., Cui, Y., Bao, Z. 2022; 169 (4)

  View details for DOI 10.1149/1945-7111/ac67f5

  View details for Web of Science ID 000788721400001

• Catalytic open-circuit passivation by thin metal oxide films of p-Si anodes in aqueous alkaline electrolytes ENERGY & ENVIRONMENTAL SCIENCE Fu, H. J., Buabthong, P., Ifkovits, Z., Yu, W., Brunschwig, B. S., Lewis, N. S. 2021

  View details for DOI 10.1039/d1ee03040j

  View details for Web of Science ID 000728258100001

• Understanding the Stability of Etched or Platinized p-GaInP Photocathodes for Solar-Driven H2 Evolution. ACS applied materials & interfaces Yu, W., Young, J. L., Deutsch, T. G., Lewis, N. S. 2021

  Abstract

  The long-term stability in acidic or alkaline aqueous electrolytes of p-Ga0.52In0.48P photocathodes, with a band gap of 1.8 eV, for the solar-driven hydrogen-evolution reaction (HER) has been evaluated from a thermodynamic, kinetic, and mechanistic perspective. At either pH 0 or pH 14, etched p-GaInP electrodes corroded cathodically under illumination and formed metallic In0 on the photoelectrode surface. In contrast, under the same conditions, electrodeposition of Pt facilitated the HER kinetics and stabilized p-GaInP/Pt photoelectrodes against such cathodic decomposition. When held at 0 V versus the reversible hydrogen electrode, p-GaInP/Pt electrodes in either pH = 0 or pH = 14 exhibited stable current densities (J) of -9 mA cm-2 for hundreds of hours under simulated 1 sun illumination. During the stability tests, the current density-potential (J-E) characteristics of the p-GaInP/Pt photoelectrodes degraded due to pH-dependent changes in the surface chemistry of the photocathode. This work provides a fundamental understanding of the stability and corrosion mechanisms of p-GaInP photocathodes that constitute a promising top light absorber for tandem solar-fuel generators.

  View details for DOI 10.1021/acsami.1c18243

  View details for PubMedID 34821500

• Investigations of the stability of etched or platinized p-InP(100) photocathodes for solar-driven hydrogen evolution in acidic or alkaline aqueous electrolytes ENERGY & ENVIRONMENTAL SCIENCE Yu, W., Richter, M. H., Buabthong, P., Moreno-Hernandez, I. A., Read, C. G., Simonoff, E., Brunschwig, B. S., Lewis, N. S. 2021

  View details for DOI 10.1039/d1ee02809j

  View details for Web of Science ID 000707161300001

• Mixed Metal Oxide Electrodes and the Chlorine Evolution Reaction JOURNAL OF PHYSICAL CHEMISTRY C Dong, H., Yu, W., Hoffmann, M. R. 2021; 125 (38): 20745-20761

  View details for DOI 10.1021/acs.jpcc.1c05671

  View details for Web of Science ID 000704295900002

• Investigations of the stability of GaAs for photoelectrochemical H-2 evolution in acidic or alkaline aqueous electrolytes JOURNAL OF MATERIALS CHEMISTRY A Yu, W., Richter, M. H., Simonoff, E., Brunschwig, B. S., Lewis, N. S. 2021; 9 (40): 22958-22972

  View details for DOI 10.1039/d1ta04145b

  View details for Web of Science ID 000703234700001

• Origin of the Electrical Barrier in Electrolessly Deposited Platinum Nanoparticles on p-Si Surfaces JOURNAL OF PHYSICAL CHEMISTRY C Nunez, P., Caban-Acevedo, M., Yu, W., Richter, M. H., Kennedy, K., Villarino, A., Brunschwig, B. S., Lewis, N. S. 2021; 125 (32): 17660-17670

  View details for DOI 10.1021/acs.jpcc.1c03072

  View details for Web of Science ID 000687714800008

• Cathodic NH(4)(+)leaching of nitrogen impurities in CoMo thin-film electrodes in aqueous acidic solutions SUSTAINABLE ENERGY & FUELS Yu, W., Buabthong, P., Read, C. G., Dalleska, N. F., Lewis, N. S., Lewerenz, H., Gray, H. B., Brinkert, K. 2020; 4 (10): 5080-5087

  View details for DOI 10.1039/d0se00674b

  View details for Web of Science ID 000573449300014