Rationally designed/assembled hybrid BiVO4-based photoanode for enhanced photoelectrochemical performance

Cao, Xin; Xu, Chunjiang; Liang, Xiangming; Ma, Jiarui; Yue, Mei-E; Ding, Yong

doi:10.1016/j.apcatb.2019.118136

Cited by 78 publications

(45 citation statements)

References 41 publications

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“…[255] Through density functional theory calculations and experimental studies, it showed that the doping of Fe atoms into the lattice of CoO x produced abundant oxygen vacancies, which significantly improved the interfacial hole injection property of BiVO 4 and reduced the OER onset potential (Figure 19d). Recently, many other advanced co-catalysts have been demonstrated with outstanding performance and stability, such as natural polyphenols/Fe ion, [256] Cu porphyrin, [257] Fe-based (Ni 1−x Fe x and Co 1−x Fe x ) layered double hydroxide, [258][259][260][261] InPO x , [86] molecular Co Cubane, [262] MnO 2 , [263][264][265] and Co 8 -polyoxometalates. [266] In Table 4, it can be seen that by modifying pristine semiconductors with co-catalyst, boosted PEC performance can be achieved due to the significantly enhanced interfacial hole-injection efficiency.…”

Section: Co-catalyst Developmentmentioning

confidence: 99%

Engineering Nanostructure–Interface of Photoanode Materials Toward Photoelectrochemical Water Oxidation

et al. 2021

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In practical applications, solar energy is usually converted to other forms of energy, such as electric energy, [9][10][11] chemical energy, [12,13] thermal energy, [14,15] so as to facilitate further transportation and storage. Among them, photoelectrochemical (PEC) reactions from water to hydrogen, CO 2 to C2+ products, and N 2 to NH 3 in the aqueous-based environment have been considered to be quite promising solar-chemical energy conversion pathways. [16][17][18][19] Unlike the traditional water electrolyzing system, the most ideal PEC reaction system can be selfdriven by illumination without external bias. Utilizing the electron-hole carriers generated from the semiconductor photoelectrode, redox reactions take place separately on the photocathode and photoanode. However, as the water oxidation reaction involves a complex four-proton coupled multi-electron process (2H 2 O + 4h + → O 2 + 4H + , E o = 1.23 V vs reversible hydrogen electrode (RHE)), it makes the water oxidation reaction the rate-control step in the watersplitting reaction. [20] Therefore, developing high-performance photo anodes is of great fundamental importance and interest.At the present stage, TiO 2 is the most studied and applied semiconductor photoelectrocatalyst, due to its outstanding chemical stability. [21][22][23] However, as a wide bandgap semiconductor (anatase TiO 2 : 3.2eV, rutile TiO 2 : 3.0 eV), TiO 2 can only respond to the ultraviolet light. Meanwhile, as an intrinsic semiconductor, the bulk/surficial carrier recombination of TiO 2 greatly hinders its practical application. [24][25][26][27] In that case, some narrow bandgap semiconductors are also applied as the photoanode materials, such as Ta 3 N 5 (bandgap 2.1 eV), [28,29] BiVO 4 (bandgap 2.4 eV), and α-Fe 2 O 3 (bandgap 2.1 eV). [30][31][32] However, many of these narrow bandgap materials suffer from poor chemical stability and sluggish interfacial charge injection. [33][34][35] As intrinsic semiconductor materials, both wide and narrow bandgap semiconductor photoanode materials are suffering from the poor bulk-phase carrier separation, intense surficial e − /h + trapping recombination, and sluggish electrode/electrolyte carrier injection kinetics. [36][37][38][39] Fortunately, with the continuous investment of researchers, a series of modification methods have been established and the PEC water oxidation performance of semiconductor photoanode materials has been significantly improved. [32,[40][41][42][43][44] Among various strategies, nanostructure-interface engineering is widely regarded as an effective method to improve the PEC water oxidation performance: [40,41] the light-harvesting performance can be enhanced by the widened optical Photoelectrochemical (PEC) water oxidation based on semiconductor materials plays an important role in the production of clean fuel and value-added chemicals. Nanostructure-interface engineering has proven to be an effective way to construct highly efficient PEC water oxidation photoanodes with good light capture, carrier transport, and ...

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Section: Co-catalyst Developmentmentioning

confidence: 99%

Engineering Nanostructure–Interface of Photoanode Materials Toward Photoelectrochemical Water Oxidation

et al. 2021

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“…6,[19][20][21][22] To overcome these challenges, a number of the strategies have been widely investigated such as; nanostructure control, [23][24][25][26] band engineering, 17,[27][28][29][30][31][32][33][34] heteroatom doping, [35][36][37][38][39][40][41] generation of oxygen vacancy 22,[42][43][44] and the oxygen evolution catalyst (OEC) incorporation. 18,[45][46][47][48][49][50][51][52][53] SnO 2 has been used for the heterojunction formation in the BiVO 4 system which suppresses the back electron-hole recombination process. 17 Additionally, the SnO 2 underneath of BiVO 4 blocks the surface state of the ITO/FTO.…”

Section: Introductionmentioning

confidence: 99%

Insight into the PEC and interfacial charge transfer kinetics at the Mo doped BiVO₄photoanodes

2019

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“…The photocurrent density of the hybrid photoanode was 4.8 mA cm −2 (1.23 V vs RHE), which was about 3‐fold higher than that of pure BiVO 4 ‐based photoanode. Our group simultaneously used Fe‐phenolic layer (FTA) to protect BiVO 4 from photocorrosion . In addition, molecular tetra‐nuclear cobalt catalyst was combined with the FTA/BiVO 4 to construct hybrid photoanode, and a remarkable photocurrent of 5.5 mA cm −2 was obtained.…”

Section: Molecular Catalyst Coupled Semiconductor Photoanodes In Watementioning

confidence: 99%

Recent Progress in Visible Light Driven Water Oxidation Using Semiconductors Coupled with Molecular Catalysts

et al. 2019

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Hybrid systems combining the molecular catalyst and semiconductors have been demonstrated to be feasible and efficient for water oxidation under visible light illumination. Herein, we present a brief review on recent developments of constructing molecule/semiconductor hybrid systems. These hybrid systems combined molecular catalysts with dye-sensitized semiconductors or visible-light-response semiconductors. This review systematically summarizes the fabrication strategies of hybrid systems in photoelectrochemical (PEC) water splitting and powdered photocatalytic water oxidation. Furthermore, we highlight the excellent water oxidation performances and stability of different hybrid systems and provide valuable guidance to design construction strategies for more robust and capable devices.[a] Dr.

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Rationally designed/assembled hybrid BiVO4-based photoanode for enhanced photoelectrochemical performance

Cited by 78 publications

References 41 publications

Engineering Nanostructure–Interface of Photoanode Materials Toward Photoelectrochemical Water Oxidation

Engineering Nanostructure–Interface of Photoanode Materials Toward Photoelectrochemical Water Oxidation

Insight into the PEC and interfacial charge transfer kinetics at the Mo doped BiVO₄photoanodes

Recent Progress in Visible Light Driven Water Oxidation Using Semiconductors Coupled with Molecular Catalysts

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Rationally designed/assembled hybrid BiVO4-based photoanode for enhanced photoelectrochemical performance

Cited by 78 publications

References 41 publications

Engineering Nanostructure–Interface of Photoanode Materials Toward Photoelectrochemical Water Oxidation

Engineering Nanostructure–Interface of Photoanode Materials Toward Photoelectrochemical Water Oxidation

Insight into the PEC and interfacial charge transfer kinetics at the Mo doped BiVO4photoanodes

Recent Progress in Visible Light Driven Water Oxidation Using Semiconductors Coupled with Molecular Catalysts

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Insight into the PEC and interfacial charge transfer kinetics at the Mo doped BiVO₄photoanodes