Cobaloxime coenzyme catalyzing artificial photosynthesis for hydrogen generation over CdS nanocrystals

Niu, Fujun; Shen, Shaohua; Zhang, Ning; Chen, Jie; Guo, Liejin

doi:10.1016/j.apcatb.2016.06.029

Cited by 21 publications

(10 citation statements)

References 57 publications

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“…Accordingly, the development and utilization of renewable and environmentally friendly energy are needed [1][2][3]. Hydrogen is a promising alternative to traditional fossil fuels because it is a clean energy source with a high heat value [4,5]. Water splitting inspired by photosynthesis is considered an ideal pathway for the conversion of solar energy and water into hydrogen energy [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Water oxidation catalytic ability of polypyridine complex containing a μ-OH, μ-O2 dicobalt(iii) core

Lin

Chen

et al. 2018

Chinese Journal of Catalysis

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Section: Introductionmentioning

confidence: 99%

Water oxidation catalytic ability of polypyridine complex containing a μ-OH, μ-O2 dicobalt(iii) core

Lin

Chen

et al. 2018

Chinese Journal of Catalysis

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“…The role of the added base on band bending behavior at the semiconductor/electrolyte interface was also investigated by Mott‐Schottky (M‐S) analysis in the same medium [43,44] . As shown in Figure S10b, the flat band potential for FTO|Fe 2 O 3 is maintained at 0.22 V vs. NHE even after the addition of the carbazole with no evidence for a role by carbazole on band bending.…”

Section: Resultsmentioning

confidence: 99%

“…[40,41] This decrease in PL emission intensity suggests the suppressed charge recombination of Fe 2 O 3 , which should be ascribed to the possible hole transfer from Fe 2 O 3 to the attached carbazole molecule. [22,42,43]…”

Section: Photoelectrocatalysismentioning

confidence: 99%

A Semiconductor‐Mediator‐Catalyst Artificial Photosynthetic System for Photoelectrochemical Water Oxidation

Niu

Wang

Williams

et al. 2022

Chemistry A European J

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In fabricating an artificial photosynthesis (AP) electrode for water oxidation, we have devised a semiconductor‐mediator‐catalyst structure that mimics photosystem II (PSII). It is based on a surface layer of vertically grown nanorods of Fe2O3 on fluorine doped tin oxide (FTO) electrodes with a carbazole mediator base and a Ru(II) carbene complex on a nanolayer of TiO2 as a water oxidation co‐catalyst. The resulting hybrid assembly, FTO|Fe2O3|−carbazole|TiO2|−Ru(carbene), demonstrates an enhanced photoelectrochemical (PEC) water oxidation performance compared to an electrode without the added carbaozle base with an increase in photocurrent density of 2.2‐fold at 0.95 V vs. NHE and a negatively shifted onset potential of 500 mV. The enhanced PEC performance is attributable to carbazole mediator accelerated interfacial hole transfer from Fe2O3 to the Ru(II) carbene co‐catalyst, with an improved effective surface area for the water oxidation reaction and reduced charge transfer resistance.

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“…In the investigation of water redox mechanisms, a variety of techniques have been exploited thanks to the research efforts of a number of research groups. They include CV,85,96–98 UV–vis,97,99 nuclear magnetic resonance (NMR),98 electron paramagnetic resonance (EPR),100,101 mass spectrometry (MS)99 and TAS,102–104 X‐ray photoelectron spectroscopy (XPS),19 dynamic light scattering (DLS),93 in situ Fourier transform infrared spectroscopy (FTIR),105 in situ transmission electron microscope (TEM),106 X‐ray absorption spectra (XAS),80 and density functional theory (DFT) 64,107–109. Among the above experimental techniques, CV is widely used for redox potential analysis to determine whether a charge transfer pathway is thermodynamically favorable.…”

Section: Fundamentals Of Hybrid Systems For Photoelectrochemical Watementioning

confidence: 99%

“…Compared with solid material, molecular catalyst generally wouldn't change the electronic states of semiconductor/electrolyte interface due to its thinness 56. In recent years, Shen and co‐workers reported three hybrid systems for photocatalytic solar water reduction and oxidation based on interfacial molecular catalysts and interfacial band bending engineering 97,131,132. More recently, they utilized nickel complex 5 to tailor p‐Si/electrolyte interface energetics 27.…”

Section: Semiconductor/molecular Catalyst Interfacesmentioning

confidence: 99%

Hybrid Photoelectrochemical Water Splitting Systems: From Interface Design to System Assembly

Niu

Wang

et al. 2019

Advanced Energy Materials

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178

120

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Photoelectrochemical (PEC) water splitting has attracted increasing attention due to its potential to mitigate energy and environmental issues. Hybrid PEC systems containing semiconductor photosensitizers and molecular catalysts are reported to be highly active and stable for water splitting with great potential for facilitating clean fuels production. In this review, following a showcasing of the fundamental details of hybrid PEC systems for water splitting, semiconductor/molecular catalyst interface designs are highlighted, with a focus on interfacial physicochemical interactions and binding, and interfacial energetics and dynamics for efficient charge transfer. Recent advances in hybrid system assemblies for PEC water splitting are also briefly introduced. Finally, future challenges and directions in the field of hybrid PEC water splitting for solar energy conversion are reviewed. The current review provides state‐of‐the‐art strategies for optimized interface design for creating highly active and stable PEC water splitting assemblies.

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Cobaloxime coenzyme catalyzing artificial photosynthesis for hydrogen generation over CdS nanocrystals

Cited by 21 publications

References 57 publications

Water oxidation catalytic ability of polypyridine complex containing a μ-OH, μ-O2 dicobalt(iii) core

Water oxidation catalytic ability of polypyridine complex containing a μ-OH, μ-O2 dicobalt(iii) core

A Semiconductor‐Mediator‐Catalyst Artificial Photosynthetic System for Photoelectrochemical Water Oxidation

Hybrid Photoelectrochemical Water Splitting Systems: From Interface Design to System Assembly

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