A5044261094- Advanced Photocatalysis Techniques
- Iron oxide chemistry and applications
- Copper-based nanomaterials and applications
- Gas Sensing Nanomaterials and Sensors
- Perovskite Materials and Applications
- ZnO doping and properties
- Mine drainage and remediation techniques
- Advanced battery technologies research
- Solar-Powered Water Purification Methods
- Quantum Dots Synthesis And Properties
- Catalytic Processes in Materials Science
- Electrocatalysts for Energy Conversion
- TiO2 Photocatalysis and Solar Cells
Sun Yat-sen University
2017-2024
University of Michigan
2023-2024
Peking University
2019-2022
National Institute of Clean and Low-Carbon Energy
2019
Abstract Photoelectrochemical water splitting is a promising technique for converting solar energy into low‐cost and eco‐friendly H 2 fuel. However, the production rate of limited by insufficient number photogenerated charge carriers in conventional photoelectrodes under 1 sun (100 mW cm −2 ) light. Concentrated light irradiation can overcome issue low yield, but it leads to new challenge stability because accelerated reaction alters surface chemical composition photoelectrodes. Here,...
Abstract The BiVO 4 photoelectrochemical (PEC) electrode in tandem with a photovoltaic (PV) cell has shown great potential to become compact and cost‐efficient device for solar hydrogen generation. However, the PEC part is still facing problems such as poor charge transport efficiency owing drag of oxygen vacancy bound polarons. In present work, effectively suppress formation, new route been developed synthesize photoanodes by using highly oxidative two‐dimensional (2D) precursor, bismuth...
Functional substructures towards artificial light trapping hierarchies inspired by the natural photosynthesis system.
Abstract There is increasing evidence that defects such as oxygen vacancies are a double‐edged sword for photoelectrochemical (PEC) water splitting. Although surface can largely improve the catalytic activity, their bulk counterparts may bind polarons, drag down carrier transport, and thus degrade PEC performance. However, it very challenging to precisely control spatial energy distributions of defects. Instead, infrared part sunlight, normally discarded in splitting, harvested thermally...
A photo-enhanced Zn–air battery with simultaneous highly efficient<italic>in situ</italic>H<sub>2</sub>O<sub>2</sub>generation for wastewater treatment was constructed.
Fabrication of high-performance tandem cell for solar-assisted water cleavage requires an efficient photoanode with excellent bulk charge separation and surface injection. In light that, we developed a hybrid using visible absorber as main scaffold, thin layer In2O3 middle to enhance in finally active CoOOH catalyst outer decoration better Bulk was mainly augmented by addition, while the addition largely advanced photocurrent onset elevated injection efficiency. The resultant delivered high...
Abstract Constructing 3D nanophotonic structures is regarded as an effective method to realize efficient solar‐to‐hydrogen conversion. These photonic can enhance the absorbance of photoelectrodes by light trapping effect, promote charge separation designable transport pathway and provide a high specific surface area for catalytic reaction. However, most reported so far mainly focused on influence absorption lacked systematic investigation overall water splitting process. Herein, hematite...
Abstract The BiVO 4 photoelectrochemical (PEC) electrode in tandem with a photovoltaic (PV) cell has shown great potential to become compact and cost‐efficient device for solar hydrogen generation. However, the PEC part is still facing problems such as poor charge transport efficiency owing drag of oxygen vacancy bound polarons. In present work, effectively suppress formation, new route been developed synthesize photoanodes by using highly oxidative two‐dimensional (2D) precursor, bismuth...
Herein, it is demonstrated that gradient Ti doping coupled with an overlayer of NiFeO x on hematite can markedly improve the photoelectrochemical (PEC) water‐splitting efficiency hematite‐based photoanodes, which are prized from sustainability considerations but have met daunting challenges. First, has effectively lowered onset potential while maintaining high photo‐generated charge separation and transmission. Second, layer not only substantially reduces surface trap states, also...
Abstract Constructing 3D nanophotonic structures is regarded as an effective means to realize both efficient light absorption and charge separation. However, most of the reported so far enhance trapping beyond onset wavelength, thus greatly attentuate or even completely block long‐wavelength light, which could otherwise be efficiently absorbed by narrow‐bandgap materials in a Z‐scheme tandem device. In addition, constructing conductive substrate often involves complex processes causing...
Water molecules adsorbed on Ag nanoparticles (AgNPs) can promote the electron transfer from InGaN to AgNPs, which enables formation of partial species with a lower oxidation state in AgNPs for highly selective methanol production.
Hematite nanoarchitecture offers opportunities to simultaneously enhance the light harvesting and charge transport, which are key boosting photoactivity for photoelectrochemical (PEC) water oxidation. However, it still remains a challenge efficiently design synthesize nanostructures realizing that in hematite photoanodes. To address this problem, herein we develop an ingenious hierarchical ball-on-wire-array (BWA) structure can improve carrier via serial growth strategy is able feasibly...
Photoanodes In article number 2100701, Yongchao Huang, Hongbing Ji, Shihe Yang, and co-workers present a double electrode stacked photoanode capable of splitting water. the photoanode, different color nanorods represent Ti doping hematite delamination basement TiO2 layer FTO, which are main ideas for improving photoanode.
In article number 1804976, Yexiang Tong, Shihe Yang, and co-workers fabricate a nanophotonic with no additional electron transport layer. One of the remarkable features is that it can selectively enhance light absorption adjustable band edges reasonably redistribute to enable more efficient charge separation in branched nanobowl substrates. This structure shows great performance photoelectrocatalysis water splitting.