Photoelectrochemical reduction of carbon dioxide to formic acid, formaldehyde and methanol on p-gallium arsenide in an aqueous V(II)-V(III) chloride redox system

Zafrir, M.; Ulman, M.; Zuckerman, Y.; Halmann, M.

doi:10.1016/s0022-0728(83)80635-4

Cited by 52 publications

(26 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The author indicated that CO 2 is converted to formic acid, methanol, and formaldehyde as products when subjected to photoelectrocatalysis on a GaP electrode. Similar products have also been obtained by other authors [183,188,196]. However, the process required 16 h of reduction to reach 60 % of methanol formation.…”

Section: Photoelectrocatalytic Co 2 Reductionsupporting

confidence: 85%

“…The first work dealing with CO 2 reduction by photoelectrocatalysis was reported by Halmman in 1978 Photocatalysis and electrocatalysis results were also presented in the paper, but different semiconductors were used for each - [195] GaAs single crystal HCOOH, H 2 CO, CH 3 OH Studies of temperature influence were carried out ranging from 20 to 80°C 0.2 [196] Si; polyaniline-Si HCOOH, H 2 CO The work questions the necessity of metals ions on the electrode for CO 2 reduction 4.7 and 3.3 [191] Re(CO) 3 (v-bpy)Cl; WSe 2 CO The study showed the use of modified metallic and semiconducting electrodes 95 3.6 [197] CdTe [190]. The author indicated that CO 2 is converted to formic acid, methanol, and formaldehyde as products when subjected to photoelectrocatalysis on a GaP electrode.…”

Section: Photoelectrocatalytic Co 2 Reductionmentioning

confidence: 99%

See 1 more Smart Citation

Achievements and Trends in Photoelectrocatalysis: from Environmental to Energy Applications

et al. 2015

View full text Add to dashboard Cite

The great versatility of semiconductor materials and the possibility of generation of electrons, holes, hydroxyl radicals, and/or superoxide radicals have increased the applicability of photoelectrocatalysis dramatically in the contemporary world. Photoelectrocatalysis takes advantage of the heterogeneous photocatalytic process by applying a biased potential on a photoelectrode in which the catalyst is supported. This configuration allows more effectiveness of the separation of photogenerated charges due to light irradiation with energy being higher compared to that of the band gap energy of the semiconductor, which thereby leads to an increase in the lifetime of the electron-hole pairs. This work presents a compiled and critical review of photoelectrocatalysis, trends and future prospects of the technique applied in environmental protection studies, hydrogen generation, and water disinfection. Special attention will be focused on the applications of TiO 2 and the production of nanometric morphologies with a great improvement in the photocatalyst properties useful for the degradation of organic pollutants, the reduction of inorganic contaminants, the conversion of CO 2 , microorganism inactivation, and water splitting for hydrogen generation.

show abstract

Section: Photoelectrocatalytic Co 2 Reductionsupporting

confidence: 85%

Section: Photoelectrocatalytic Co 2 Reductionmentioning

confidence: 99%

Achievements and Trends in Photoelectrocatalysis: from Environmental to Energy Applications

et al. 2015

View full text Add to dashboard Cite

show abstract

“…In cases where the energy storage system generates a multitude of products rather than just H 2 , the free energy term in the numerator in Eq. 1 becomes a summation of all the free energies stored in the various products [77].…”

Section: An Ideal Photoelectrolysis Systemmentioning

confidence: 99%

Hydrogen generation at irradiated oxide semiconductor–solution interfaces

2007

View full text Add to dashboard Cite

This review focuses on the use of inorganic oxide semiconductors for the photoassisted generation of hydrogen from water. Representative studies spanning approximately three decades are included in this review. The topics covered include a discussion of the types of water photosplitting approaches, an ideal photoelectrolysis system, an examination of why oxide semiconductors are attractive for this application, a review of both classical and more recent studies on titanium dioxide, tungsten trioxide, and other binary metal oxides, perovskites and other ternary oxides, tantalates and niobates, miscellaneous multinary oxides, semiconductor alloys and mixed semiconductor composites, and twin-photosystem configurations for water splitting.

show abstract

“…Zafrir et a1. 96 examined CO2 reduction at p-GaAs in the presence of the vanadium redox couple V(II)/V(III) to overcome the problem of corrosion of the electrode, because p-Si and p-InP were successfully stabilized by introduction of the redox couple. 98 Since a V(II)/V(I1I) chloride solution has a violet to blue color, some of the incident light was absorbed by the solution.…”

Section: Reduction Of Carbon Dioxide At Iiiuminated P-type Semiconducmentioning

confidence: 99%

Electrochemical and Photoelectrochemical Reduction of Carbon Dioxide

Taniguchi¹

1989

Modern Aspects of Electrochemistry

View full text Add to dashboard Cite

Photoelectrochemical reduction of carbon dioxide to formic acid, formaldehyde and methanol on p-gallium arsenide in an aqueous V(II)-V(III) chloride redox system

Cited by 52 publications

References 35 publications

Achievements and Trends in Photoelectrocatalysis: from Environmental to Energy Applications

Achievements and Trends in Photoelectrocatalysis: from Environmental to Energy Applications

Hydrogen generation at irradiated oxide semiconductor–solution interfaces

Electrochemical and Photoelectrochemical Reduction of Carbon Dioxide

Contact Info

Product

Resources

About