scholarly journals Bimetallic Mixed Clusters Highly Loaded on Porous 2D Graphdiyne for Hydrogen Energy Conversion

2021 ◽  
pp. 2102777
Author(s):  
Yang Gao ◽  
Yurui Xue ◽  
Taifeng Liu ◽  
Yuxin Liu ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Hydrogen Energy ◽  
Mixed Clusters ◽  
Highly Loaded

scholarly journals Bimetallic Mixed Clusters Highly Loaded on Porous 2D Graphdiyne for Hydrogen Energy Conversion

2021 ◽  
Vol 8 (24) ◽  
pp. 2105235
Author(s):  
Yang Gao ◽  
Yurui Xue ◽  
Taifeng Liu ◽  
Yuxin Liu ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Hydrogen Energy ◽  
Mixed Clusters ◽  
Highly Loaded

scholarly journals Sequential cocatalyst decoration on BaTaO2N towards highly-active Z-scheme water splitting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zheng Wang ◽  
Ying Luo ◽  
Takashi Hisatomi ◽  
Junie Jhon M. Vequizo ◽  
Sayaka Suzuki ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Water Splitting ◽  
Energy Conversion Efficiency ◽  
Hydrogen Energy ◽  
Apparent Quantum Yield ◽  
Intimate Contact ◽  
Single Crystalline ◽  
Highly Active ◽  
Uniform Dispersion ◽  
Solar Hydrogen Production

AbstractOxynitride photocatalysts hold promise for renewable solar hydrogen production via water splitting owing to their intense visible light absorption. Cocatalyst loading is essential for activation of such oxynitride photocatalysts. However, cocatalyst nanoparticles form aggregates and exhibit weak interaction with photocatalysts, which prevents eliciting their intrinsic photocatalytic performance. Here, we demonstrate efficient utilization of photoexcited electrons in a single-crystalline particulate BaTaO2N photocatalyst prepared with the assistance of RbCl flux for H2 evolution reactions via sequential decoration of Pt cocatalyst by impregnation-reduction followed by site-selective photodeposition. The Pt-loaded BaTaO2N photocatalyst evolves H2 over 100 times more efficiently than before, with an apparent quantum yield of 6.8% at the wavelength of 420 nm, from a methanol aqueous solution, and a solar-to-hydrogen energy conversion efficiency of 0.24% in Z-scheme water splitting. Enabling uniform dispersion and intimate contact of cocatalyst nanoparticles on single-crystalline narrow-bandgap particulate photocatalysts is a key to efficient solar-to-chemical energy conversion.

Integrating a redox flow battery into a Z-scheme water splitting system for enhancing the solar energy conversion efficiency

2019 ◽  
Vol 12 (2) ◽  
pp. 631-639 ◽  
Author(s):  
Zhen Li ◽  
Wangyin Wang ◽  
Shichao Liao ◽  
Mingyao Liu ◽  
Yu Qi ◽  
...  
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Water Splitting ◽  
Conversion Efficiency ◽  
Solar Energy Conversion ◽  
Energy Conversion Efficiency ◽  
Hydrogen Energy ◽  
Redox Flow Battery ◽  
Solar Energy Conversion Efficiency ◽  
Splitting System

A RFB-integrated Z-scheme water splitting system produces hydrogen energy and electricity for efficient solar energy conversion.

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