CdS/CdSe Co-Sensitized TiO2Photoelectrode for Efficient Hydrogen Generation in a Photoelectrochemical Cell†

2010 ◽  
Vol 22 (3) ◽  
pp. 922-927 ◽  
Author(s):  
Yuh-Lang Lee ◽  
Ching-Fa Chi ◽  
Shih-Yi Liau
Keyword(s):  
Hydrogen Generation ◽  
Photoelectrochemical Cell

Plasmonic effect in Au(core)-CdS(shell) quantum dot-sensitized photoelectrochemical cell for hydrogen generation from water

2017 ◽  
Vol 111 (11) ◽  
pp. 113901 ◽  
Author(s):  
Takuya Ikeda ◽  
Ryo Akashi ◽  
Musashi Fujishima ◽  
Hiroaki Tada
Keyword(s):  
Quantum Dot ◽  
Hydrogen Generation ◽  
Photoelectrochemical Cell ◽  
Plasmonic Effect

scholarly journals Fabrication CdS/Au/TiO2 sandwich nanofibers for enhanced photoelectrochemical water-splitting efficiency

2020 ◽  
Vol 129 (1B) ◽  
pp. 15-23
Author(s):  
Van Nghia Nguyen ◽  
Manh Son Nguyen ◽  
Minh Thuy Doan
Keyword(s):  
Electron Microscopy ◽  
Hydrogen Generation ◽  
Diffuse Reflectance Spectroscopy ◽  
Energy Conversion Efficiency ◽  
Photoelectrochemical Cell ◽  
Xenon Lamp ◽  
X Ray Diffraction ◽  
Tio2 Nanofibers ◽  
Transmission Electron ◽  
Splitting Water

The sandwich-structured CdS/Au/TiO2 nanofibers (NFs) act as a photoanode in the photoelectrochemical cell (PEC) for hydrogen generation by splitting water. The gold nanoparticles sandwiched between the TiO2 nanofibers and the CdS quantum dots (QDs) layers play an important role in enhancing the solar-to-chemical-energy conversion efficiency. The structure and morphology of the materials were characterized by using field-emission scanning electron microscopy (FE–SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The surface plasmon resonance (SPR) of the Au nanoparticles was investigated by using ultraviolet-visible (UV–Vis) diffuse reflectance spectroscopy. The PEC properties of the photoanode were measured on a three-electrode electrochemical analyzer. The obtained photoconversion efficiency of the CdS/Au/TiO2 NFs is 4.1% under simulated-sunlight illumination with a 150 W xenon lamp. Working photoelectrode stability was tested, and the mechanism of the enhanced PEC performance was discussed.

ZnO-CdZnS Core-Shell Nanocable Arrays for Highly Efficient Photoelectrochemical Hydrogen Generation

2010 ◽  
Vol 1256 ◽  
Author(s):  
Yoon Myung ◽  
Dong Myung Jang ◽  
Yong Jei Sohn ◽  
Tae Kwang Sung ◽  
Gyeong Bok Jung ◽  
...  
Keyword(s):  
Hydrogen Generation ◽  
Nanowire Arrays ◽  
Vapor Transport ◽  
Photoelectrochemical Cell ◽  
Core Shell ◽  
Zno Nanowire ◽  
Large Area ◽  
Vertically Aligned ◽  
Transport Method ◽  
Vapor Transport Method

AbstractHigh-density TiO2-CdS and ZnO-CdS core-shell nanocable arrays were synthesized on large-area Ti substrates. The CdS layers were deposited on the pre-grown vertically-aligned TiO2 (rutile) and ZnO nanowire arrays, with a controlled thickness (10~50 nm), using the vapor transport method. The ZnO-CdS nanocables consisted of single-crystalline wurtzite CdS shells whose [001] direction was aligned along the [001] wire axis of the wurtzite ZnO core, which is distinctive from the polycrystalline shell of the TiO2-CdS nanocables. We fabricated the photoelectrochemical cell using the ZnO-CdS photoelectrode exhibits much more efficient hydrogen generation than that using the TiO2-CdS one.

scholarly journals Nanopillar composite electrodes for solar-driven water splitting

MRS Bulletin ◽  
2021 ◽  
Author(s):  
Mikk Lippmaa ◽  
Seiji Kawasaki ◽  
Ryota Takahashi ◽  
Takahisa Yamamoto
Keyword(s):  
Water Splitting ◽  
Noble Metal ◽  
Hydrogen Generation ◽  
Growth Direction ◽  
Photoelectrochemical Cell ◽  
Composite Electrodes ◽  
Host Matrix ◽  
Current Path ◽  
Vertically Aligned ◽  
Solar Powered

AbstractSpontaneous noble metal dopant segregation in an oxide lattice can lead to the formation of metallic clusters and extended acicular inclusions. In a thin-film process, the shape and orientation of such noble metal inclusions are governed by the crystal growth direction, giving rise to a composite material with lattice-matched metal nanopillars embedded vertically in an insulating or semiconducting oxide matrix. An interesting application of such composites is in photoelectrochemical cell electrodes, where the metallic nanopillars take on three distinct roles: forming a Schottky junction with the host matrix, providing a low-loss current path from bulk to surface, and creating an efficient electrocatalytic active site on the electrode surface. In particular, we discuss the application of vertically aligned metal–oxide nanopillar composites in photoelectrochemical water-splitting cells used for direct solar-powered hydrogen generation.

A novel photoelectrochemical cell with self-organized TiO2 nanotubes as photoanodes for hydrogen generation

2011 ◽  
Vol 36 (22) ◽  
pp. 14374-14380 ◽  
Author(s):  
Yongkun Li ◽  
Hongmei Yu ◽  
Wei Song ◽  
Guangfu Li ◽  
Baolian Yi ◽  
...  
Keyword(s):  
Tio2 Nanotubes ◽  
Hydrogen Generation ◽  
Photoelectrochemical Cell ◽  
Self Organized

Membrane electrode assembly-based photoelectrochemical cell for hydrogen generation

2010 ◽  
Vol 35 (20) ◽  
pp. 10890-10897 ◽  
Author(s):  
King-Tsai Jeng ◽  
Yu-Chang Liu ◽  
Yung-Fang Leu ◽  
Yu-Zhen Zeng ◽  
Jen-Chren Chung ◽  
...  
Keyword(s):  
Hydrogen Generation ◽  
Membrane Electrode Assembly ◽  
Photoelectrochemical Cell ◽  
Membrane Electrode
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