نتایج جستجو برای: photoanode

تعداد نتایج: 906  

Journal: :ACS applied materials & interfaces 2016
Aniketa Shinde Dan Guevarra Guiji Liu Ian D Sharp Francesca M Toma John M Gregoire Joel A Haber

An efficient photoanode is a prerequisite for a viable solar fuels technology. The challenges to realizing an efficient photoanode include the integration of a semiconductor light absorber and a metal oxide electrocatalyst to optimize corrosion protection, light trapping, hole transport, and photocarrier recombination sites. To efficiently explore metal oxide coatings, we employ a high-throughp...

Journal: :Nanoscale 2014
Jung Tae Park Jong Hak Kim Daeyeon Lee

We present a facile method for producing anti-fogging (AF) and anti-reflection (AR) coating functionalized photoanodes via one-step SiO2 nanoparticle coating for high performance solid state dye-sensitized solar cells (ssDSSCs). The AF and AR coating functionalized photoanodes are prepared by spin-coating of partially aggregated SiO2 colloidal solution. Poly((1-(4-ethenylphenyl)methyl)-3-butyl-...

Journal: :Small 2017
Alireza Kargar Supanee Sukrittanon Chang Zhou Yun Goo Ro Xiaoqing Pan Shadi A Dayeh Charles W Tu Sungho Jin

The growth and characterization of an n-GaP/i-GaNP/p+ -GaP thin film heterojunction synthesized using a gas-source molecular beam epitaxy (MBE) method, and its application for efficient solar-driven water oxidation is reported. The TiO2 /Ni passivated n-GaP/i-GaNP/p+ -GaP thin film heterojunction provides much higher photoanodic performance in 1 m KOH solution than the TiO2 /Ni-coated n-GaP sub...

آهنگرانی فراهانی, فرزانه , مرندی, مازیار ,

In this research, CdS and PbS quantum dots were applied as the light sensitizers in TiO2 based nanostructured solar cells. The PbS quantum dots could absorb a wide range of the sunlight spectrum on earth due to their low bandgap energy. As a result, the cell sensitization is more effective by application of both CdS and PbS quantum dots sensitizers. The TiO2 nanocrystals were synthesized throug...

آنجفی, زکیه, مرندی, مازیار,

In this study, TiO2 nanocrystals were prepared by sol-gel method through the hydrolysis of the titanium tetraisopropoxide in n-heptan solution. The beneficial role of n-heptan solvent was the dilution of the reacting precursors. This could consequently create smaller TiO2 nanocrystals and a better powder effective area. The anatase phase TiO2 nanopowder was achieved by performing an annealing p...

Journal: :Catalysts 2021

This study demonstrates the use of a photoelectrochemical device comprising earth-abundant hematite photoanode for oxidation 5-hydroxymethylfurfural (5-HMF), versatile bio-based platform chemical, under ambient conditions in presence an electron mediator. The results obtained this showed that photoanode, upon doping with fluorine, can oxidize water even at lower pH (4.5 and 9.0). For 5-HMF oxid...

Journal: :Journal of materials chemistry. A, Materials for energy and sustainability 2023

Well-aligned ultrathin corrugated nanowire TiO 2 (UCW-TiO ) on FTO was used as a versatile photoanode platform for PEC benzyl alcohol and water oxidation with significant performance improvement compared to the nanoparticulate counterparts.

Journal: :Journal of the American Chemical Society 2015
Yixin Zhao Nella M Vargas-Barbosa Megan E Strayer Nicholas S McCool Maria-Erini Pandelia Timothy P Saunders John R Swierk Juan F Callejas Lasse Jensen Thomas E Mallouk

Soluble, monomeric Ir(III/IV) complexes strongly affect the photoelectrochemical performance of IrO(x)·nH2O-catalyzed photoanodes for the oxygen evolution reaction (OER). The synthesis of IrO(x)·nH2O colloids by alkaline hydrolysis of Ir(III) or Ir(IV) salts proceeds through monomeric intermediates that were characterized using electrochemical and spectroscopic methods and modeled in TDDFT calc...

2015
Meidan Ye Xiaoru Wen Mengye Wang James Iocozzia Nan Zhang Changjian Lin Zhiqun Lin

Introduction Motivated by continuously growing global energy demands and the depletion of readily accessible fossil fuels; the search for alternative energy sources, particularly renewable solar energy, has become vital. Despite the clear advantages associated with the adoption of solar cells, they need to be cost-effective and priced competitively in comparison to conventional energy resources...

Journal: :Physical chemistry chemical physics : PCCP 2015
Mingqing Fang Huimin Jia Weiwei He Yan Lei Lizhi Zhang Zhi Zheng

Ordered 2D nanostructural BiOI nanoflake arrays decorated with Bi2S3 nanospheres have been designed and in situ fabricated for the first time, to form BiOI/Bi2S3 bulk heterojunctions through a soft chemical route. A modified successive ionic layer adsorption and reaction (SILAR) method was developed to fabricate BiOI nanoflake arrays on flexible ITO/PET substrates at room temperature. The degre...

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