Guanda Zhou
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View article: Sub-Bandgap Photon-to-Current Conversion in Bismuth Vanadate Photoanodes and Its Impact on the Maximum Photocurrent Density Achievable for Water Splitting
Sub-Bandgap Photon-to-Current Conversion in Bismuth Vanadate Photoanodes and Its Impact on the Maximum Photocurrent Density Achievable for Water Splitting Open
The physical properties of bismuth vanadate (BiVO4) make it an appealing semiconductor photoanode for water oxidation in photoelectrochemical cells that aim to produce hydrogen or other solar fuels. However, it has been estimated that its …
View article: Water Oxidation and Degradation Mechanisms of BiVO<sub>4</sub> Photoanodes in Bicarbonate Electrolytes
Water Oxidation and Degradation Mechanisms of BiVO<sub>4</sub> Photoanodes in Bicarbonate Electrolytes Open
The photoelectrochemical hydrogen peroxide evolution reaction (HPER) has attracted increasing attention as an environmentally friendly approach to generate a commercially and industrially valuable water oxidation product. BiVO4 photoanodes…
View article: Ligand-Tuned AgBiS<sub>2</sub> Planar Heterojunctions Enable Efficient Ultrathin Solar Cells
Ligand-Tuned AgBiS<sub>2</sub> Planar Heterojunctions Enable Efficient Ultrathin Solar Cells Open
AgBiS2 quantum dots (ABS QDs) have emerged as highly promising candidates for photovoltaic applications due to their strong sunlight absorption, nontoxicity, and elemental availability. Nevertheless, the efficiencies of ABS solar cells cur…
View article: Impact of Defects and Disorder on the Stability of Ta<sub>3</sub>N<sub>5</sub> Photoanodes
Impact of Defects and Disorder on the Stability of Ta<sub>3</sub>N<sub>5</sub> Photoanodes Open
The photoelectrochemical performance of Ta 3 N 5 photoanodes is strongly impacted by the presence of shallow and deep defects within the bandgap. However, the role of such states in defining stability under operational conditions is not we…
View article: Electrochemical versus Photoelectrochemical Water Oxidation Kinetics on Bismuth Vanadate (Photo)anodes
Electrochemical versus Photoelectrochemical Water Oxidation Kinetics on Bismuth Vanadate (Photo)anodes Open
This study reports a comparison of the kinetics of electrochemical (EC) versus photoelectrochemical (PEC) water oxidation on bismuth vanadate (BiVO4) photoanodes. Plots of current density versus surface hole density, determined from operan…
View article: Tailoring Microenvironments and In Situ Transformations of Cu Catalysts for Selective and Stable Electrosynthesis of Multicarbon Products
Tailoring Microenvironments and In Situ Transformations of Cu Catalysts for Selective and Stable Electrosynthesis of Multicarbon Products Open
Electrochemical CO 2 reduction is of tremendous interest for storing chemical energy from renewable sources while reducing CO 2 emissions. While copper is one of the most effective catalysts, it suffers from low selectivity and limited lon…
View article: Tuning Carbon Dioxide Reduction Reaction Selectivity of Bi Single‐Atom Electrocatalysts with Controlled Coordination Environments
Tuning Carbon Dioxide Reduction Reaction Selectivity of Bi Single‐Atom Electrocatalysts with Controlled Coordination Environments Open
Control over product selectivity of the electrocatalytic CO 2 reduction reaction (CO 2 RR) is a crucial challenge for the sustainable production of carbon‐based chemical feedstocks. In this regard, single‐atom catalysts (SACs) are promisin…
View article: Bi<sub>2</sub>Se<sub>3</sub>, Bi<sub>2</sub>Te<sub>3</sub> quantum dots-sensitized rutile TiO<sub>2</sub> nanorod arrays for enhanced solar photoelectrocatalysis in azo dye degradation
Bi<sub>2</sub>Se<sub>3</sub>, Bi<sub>2</sub>Te<sub>3</sub> quantum dots-sensitized rutile TiO<sub>2</sub> nanorod arrays for enhanced solar photoelectrocatalysis in azo dye degradation Open
Rutile TiO 2 nanorod arrays vertically aligned on conductive fluorine-doped tin oxide glass are optimized for photocatalysis in terms of the density and diameter of nanorods by tuning the concentration of Ti precursor and reaction time dur…