Novel CuBr-assisted graphdiyne synthesis strategy and application for efficient photocatalytic hydrogen evolution

2022 ◽  
Author(s):  
Junke Li ◽  
Mei Li ◽  
Hongying Li ◽  
Zhiliang Jin
Keyword(s):  
Hydrogen Evolution ◽  
Hole Mobility ◽  
High Electron ◽  
Electron Hole ◽  
Photocatalytic Hydrogen Evolution ◽  
Synthesis Strategy ◽  
Narrow Bandgap

As a new allotrope of carbon, graphdiyne (GDY) also shows great potential in photocatalysis based on the characteristics of narrow bandgap and high electron-hole mobility. This work synthesized the GDY-CuBr...

Hole gas accumulation in Si/Ge core–shell and Si/Ge/Si core–double shell nanowires

Nanoscale ◽  
2018 ◽  
Vol 10 (45) ◽  
pp. 21062-21068 ◽  
Author(s):  
Xiaolong Zhang ◽  
Wipakorn Jevasuwan ◽  
Ken C. Pradel ◽  
Thiyagu Subramani ◽  
Toshiaki Takei ◽  
...  
Keyword(s):  
Hole Mobility ◽  
Core Shell ◽  
High Electron ◽  
Electron Hole ◽  
Vapor Liquid Solid ◽  
Selective Doping ◽  
Sharp Interfaces ◽  
Growth Methods ◽  
Vapor Liquid Solid Growth ◽  
Shell Nanowires

p-Si/i-Ge core–shell and p-Si/i-Ge/p-Si core–double shell nanowires are fabricated using CVD with vapor–liquid–solid growth methods. Selective doping and sharp interfaces between the Si core and the Ge shell are achieved, which can provide a feasible design for realizing high electron (hole) mobility transistors.

Amorphous Fe2O3 for photocatalytic hydrogen evolution

2019 ◽  
Vol 9 (20) ◽  
pp. 5582-5592 ◽  
Author(s):  
Zhaoyong Lin ◽  
Chun Du ◽  
Bo Yan ◽  
Guowei Yang
Keyword(s):  
Hydrogen Evolution ◽  
Thermodynamic Stability ◽  
Natural Abundance ◽  
Photocatalytic Hydrogen Evolution ◽  
Environmental Compatibility ◽  
Narrow Bandgap ◽  
Low Toxicity ◽  
Significant Attention

Fe2O3has drawn significant attention in photocatalysis due to its natural abundance, thermodynamic stability, environmental compatibility, low toxicity and narrow bandgap.

Bimetallic phosphide NixCo1-xP decorated flower-like ZnIn2S4 for enhanced photocatalytic hydrogen evolution

2021 ◽  
Author(s):  
Yumeng Wang ◽  
Tingting Zhang ◽  
Tingting Wei ◽  
Fengyan Li ◽  
Lin Xu
Keyword(s):  
Low Temperature ◽  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Electron Hole ◽  
Photocatalytic Hydrogen Production ◽  
Factors Affecting ◽  
Photocatalytic Hydrogen Evolution ◽  
And Migration

Promoting electron-hole separation and migration is one of the important factors affecting the rate of photocatalytic hydrogen production. Herein, we firstly prepared the NixCo1-xP modified ZnIn2S4 (ZIS) nanoflowers by low-temperature...

Facile strategy for controllable synthesis of stable mesoporous black TiO2 hollow spheres with efficient solar-driven photocatalytic hydrogen evolution

2016 ◽  
Vol 4 (19) ◽  
pp. 7495-7502 ◽  
Author(s):  
Weiyao Hu ◽  
Wei Zhou ◽  
Kaifu Zhang ◽  
Xiangcheng Zhang ◽  
Lei Wang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Wall Thickness ◽  
Hollow Spheres ◽  
Controllable Synthesis ◽  
Photocatalytic Hydrogen Evolution ◽  
Narrow Bandgap ◽  
Black Tio2 ◽  
Tio2 Hollow Spheres

Stable mesoporous black TiO2 hollow spheres with controllable diameter, wall thickness and narrow bandgap are fabricated via a small amine molecules encircling strategy, showing high solar-driven photocatalytic hydrogen evolution.

scholarly journals Direct probing of atomically dispersed Ru species over multi-edged TiO2 for highly efficient photocatalytic hydrogen evolution

2020 ◽  
Vol 6 (39) ◽  
pp. eabb9823
Author(s):  
Huabin Zhang ◽  
Shouwei Zuo ◽  
Mei Qiu ◽  
Sibo Wang ◽  
Yongfan Zhang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Separation Efficiency ◽  
Structural Evolution ◽  
Photocatalytic Process ◽  
Electron Hole ◽  
Photocatalytic Hydrogen Evolution ◽  
Photogenerated Electrons ◽  
Ru Species ◽  
Kinetics Of

A cocatalyst is necessary for boosting the electron-hole separation efficiency and accelerating the reaction kinetics of semiconductors. As a result, it is of critical importance to in situ track the structural evolution of the cocatalyst during the photocatalytic process, but it remains very challenging. Here, atomically dispersed Ru atoms are decorated over multi-edged TiO2 spheres for photocatalytic hydrogen evolution. Experimental results not only demonstrate that the photogenerated electrons can be effectively transferred to the isolated Ru atoms for hydrogen evolution but also imply that the TiO2 architecture with multi-edges might facilitate the charge separation and transport. The change in valence and the evolution of electronic structure of Ru sites are well probed during the photocatalytic process. Specifically, the optimized catalyst produces the hydrogen evolution rate of 7.2 mmol g−1 hour−1, which is much higher than that of Pt-based cocatalyst systems and among the highest reported values.

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