Kaijian Zhu
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View article: Electrochemical Formation of BiVO<sub>4</sub>/BiPO<sub>4</sub> Photoanodes for Enhanced Selectivity toward H<sub>2</sub>O<sub>2</sub> Generation
Electrochemical Formation of BiVO<sub>4</sub>/BiPO<sub>4</sub> Photoanodes for Enhanced Selectivity toward H<sub>2</sub>O<sub>2</sub> Generation Open
Two‐electron water oxidation to generate H 2 O 2 is a promising alternative to oxygen evolution in solar water splitting, as it enhances reaction kinetics and improves its economic competitiveness. However, competition with oxygen evolutio…
View article: Effects of Nuclear Motion on the Photoinduced Interfacial Charge Transfer Dynamics at a NiO/P1 Photocathode
Effects of Nuclear Motion on the Photoinduced Interfacial Charge Transfer Dynamics at a NiO/P1 Photocathode Open
The performance of dye-sensitized photoelectrochemical cells is presently limited by the photocathode component. Here, we investigate the impact of nuclear dynamics on the photoinduced charge separation of the benchmark NiO/P1 system (P1 =…
View article: Facet‐Dependent Performance of Microstructured <scp>S</scp>r<scp>T</scp>i<scp>O</scp><sub>3</sub> Particles in Photocatalytic Oxidation of Acetone
Facet‐Dependent Performance of Microstructured <span>S</span>r<span>T</span>i<span>O</span><sub>3</sub> Particles in Photocatalytic Oxidation of Acetone Open
Photocatalysis is a promising technology for purification of indoor air by oxidation of volatile organic compounds. This study provides a comprehensive analysis of the adsorption and photo‐oxidation of surface‐adsorbed acetone on three SrT…
View article: Surface engineering strategies for selectivity tuning and enhancement in photoelectrochemical biomass and CO <sub>2</sub> valorization
Surface engineering strategies for selectivity tuning and enhancement in photoelectrochemical biomass and CO <sub>2</sub> valorization Open
This review extensively discusses various photoelectrode surface engineering strategies for tuning and enhancing photoelectrochemical biomass and CO 2 valorization and provides an insightful perspective on the remaining challenges.
View article: Electrocatalytic CO<sub>2</sub> reduction with an immobilized iron complex on gas diffusion electrodes
Electrocatalytic CO<sub>2</sub> reduction with an immobilized iron complex on gas diffusion electrodes Open
The immobilization of a molecular electrocatalyst on gas diffusion electrodes (GDEs) overcomes mass transport limitations inherent to solution-phase CO 2 reduction.
View article: Limiting Molecular Twisting: Upgrading a Donor–Acceptor Dye to Drive H<sub>2</sub> Evolution
Limiting Molecular Twisting: Upgrading a Donor–Acceptor Dye to Drive H<sub>2</sub> Evolution Open
The donor–acceptor (D–A) dye 4‐(bis‐4‐(5‐(2,2‐dicyano‐vinyl)‐thiophene‐2‐yl)‐phenyl‐amino)‐benzoic acid (P1) has been frequently used to functionalize NiO photocathodes and induce photoelectrochemical reduction of protons when coupled to a…
View article: Dye-sensitized NiO photocathodes: Research progress, current mechanistic understanding, and research perspectives
Dye-sensitized NiO photocathodes: Research progress, current mechanistic understanding, and research perspectives Open
Dye-sensitized photocathodes attract wide interest because of their ease of fabrication and tunability in properties for light-driven proton or CO2 reduction. They are often based on nanocrystalline NiO, functionalized with a photosensitiz…
View article: Photophysical Study on the Effect of the External Potential on NiO-Based Photocathodes
Photophysical Study on the Effect of the External Potential on NiO-Based Photocathodes Open
In the present study, we investigate the effects of the applied external potential on a dye-sensitized NiO photocathode by time-resolved photoluminescence and femtosecond transient absorption spectroscopy under operating conditions. Instea…
View article: Slow hole diffusion limits the efficiency of p-type dye-sensitized solar cells based on the P1 dye
Slow hole diffusion limits the efficiency of p-type dye-sensitized solar cells based on the P1 dye Open
The performance of NiO as p-type semiconducting material in DSSC's suffers from excessive charge recombination, limiting the overall efficiency. Here we study the origin of the phenomenon, indicating that slow hole diffusion is the main ca…
View article: Rotaxane‐Functionalized Dyes for Charge‐Rectification in <i>p</i>‐Type Photoelectrochemical Devices
Rotaxane‐Functionalized Dyes for Charge‐Rectification in <i>p</i>‐Type Photoelectrochemical Devices Open
A supramolecular photovoltaic strategy is applied to enhance power conversion efficiencies (PCE) of photoelectrochemical devices by suppressing electron–hole recombination after photoinduced electron transfer (PET). Here, the author exploi…
View article: Disentangling Hot Carrier Decay and the Nature of Low-<i>n</i> to High-<i>n</i> Transfer Processes in Quasi-Two-Dimensional Layered Perovskites
Disentangling Hot Carrier Decay and the Nature of Low-<i>n</i> to High-<i>n</i> Transfer Processes in Quasi-Two-Dimensional Layered Perovskites Open
Quasi-two-dimensional (2D) metal halide perovskites (MHPs) are promising photovoltaic (PV) materials because of their impressive optical and optoelectronic properties and improved stability compared to their 3D counterparts. The presence o…
View article: CuBO<sub>2</sub>: A Potential Alternative for NiO as a Hole Acceptor Layer
CuBO<sub>2</sub>: A Potential Alternative for NiO as a Hole Acceptor Layer Open
P‐type metal oxides, and in particular NiO, are typically used as hole accepting layers in dye‐sensitized photocathodes. Delafossites (CuMO 2 ) with M=B, Al, Cr or Ga have recently been proposed as attractive substitutes for NiO, with theo…
View article: Photophysical Characterization of Ru Nanoclusters on Nanostructured TiO<sub>2</sub> by Time-Resolved Photoluminescence Spectroscopy
Photophysical Characterization of Ru Nanoclusters on Nanostructured TiO<sub>2</sub> by Time-Resolved Photoluminescence Spectroscopy Open
Despite the promising performance of Ru nanoparticles or nanoclusters on nanostructured TiO2 in photocatalytic and photothermal reactions, a mechanistic understanding of the photophysics is limited. The aim of this study is to u…
View article: Limitation of molecular twisting: Upgrading a donor-acceptor dye to drive H2 evolution
Limitation of molecular twisting: Upgrading a donor-acceptor dye to drive H2 evolution Open
The performance of dye-sensitized photoelectrochemical (DSPEC) cells is currently hampered by the low efficiency of the photocathode, predominantly due to ineffective charge separation. To promote efficiency, donor-acceptor (D-A) dyes for …
View article: Photophysical Study on the Effect of the External Potential on NiO-Based Photocathodes
Photophysical Study on the Effect of the External Potential on NiO-Based Photocathodes Open
In present study we investigate the effect of the external potential on a dye-sensitized NiO photocathode on the light-induced charge carrier dynamics by time-resolved photoluminescence and femtosecond transient absorption spectroscopy und…
View article: Limitation of molecular twisting: Upgrading a donor-acceptor dye to drive H2 evolution
Limitation of molecular twisting: Upgrading a donor-acceptor dye to drive H2 evolution Open
data for Limitation of molecular twisting: Upgrading a donor-acceptor dye to drive H2 evolution
View article: Using supramolecular machinery to engineer directional charge propagation in photoelectrochemical devices
Using supramolecular machinery to engineer directional charge propagation in photoelectrochemical devices Open
View article: Dual Role of Surface Hydroxyl Groups in the Photodynamics and Performance of NiO-Based Photocathodes
Dual Role of Surface Hydroxyl Groups in the Photodynamics and Performance of NiO-Based Photocathodes Open
Photoelectrochemical (PEC) cells containing photocathodes based on functionalized NiO show a promising solar-to-hydrogen conversion efficiency. Here, we present mechanistic understanding of the photoinduced charge transfer processes occurr…
View article: Using supramolecular machinery to engineer directional charge propagation in photoelectrochemical devices
Using supramolecular machinery to engineer directional charge propagation in photoelectrochemical devices Open
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View article: Unraveling the Mechanisms of Beneficial Cu-Doping of NiO-Based Photocathodes
Unraveling the Mechanisms of Beneficial Cu-Doping of NiO-Based Photocathodes Open
Dye-sensitized photoelectrochemical (DSPEC) water splitting is an attractive approach to convert and store solar energy into chemical bonds. However, the solar conversion efficiency of a DSPEC cell is typically low due to a poor performanc…
View article: Ultrafast Photoinduced Heat Generation by Plasmonic HfN Nanoparticles
Ultrafast Photoinduced Heat Generation by Plasmonic HfN Nanoparticles Open
There is great interest in the development of alternatives to noble metals for plasmonic nanostructures. Transition metal nitrides are promising due to their robust refractory properties. However, the photophysics of these nanostructures, …
View article: Reversible Charge Transfer and Adjustable Potential Window in Semiconductor/Faradaic Layer/Liquid Junctions
Reversible Charge Transfer and Adjustable Potential Window in Semiconductor/Faradaic Layer/Liquid Junctions Open
Semiconductor/Faradaic layer/liquid junctions have been widely used in solar energy conversion and storage devices. However, the charge transfer mechanism of these junctions is still unclear, which leads to inconsistent results and low per…
View article: Cathodic shift of a photo-potential on a Ta<sub>3</sub>N<sub>5</sub>photoanode by post-heating a TiO<sub>2</sub>passivation layer
Cathodic shift of a photo-potential on a Ta<sub>3</sub>N<sub>5</sub>photoanode by post-heating a TiO<sub>2</sub>passivation layer Open
A 90 mV cathodic shift of photo-potential of a Ta3N5photoanode is achieved by increasing the conductivity of a TiO2passivation layer.