2019
DOI: 10.1039/c9ra08743e
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Insight into the PEC and interfacial charge transfer kinetics at the Mo doped BiVO4photoanodes

Abstract: BiVO4 is a promising photoanode material for the photoelectrochemical (PEC) oxidation of water; however, its poor charge transfer, transport, and slow surface catalytic activity limit the expected theoretical efficiency.

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Cited by 45 publications
(53 citation statements)
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“…The results were observed to follow the trend of BiVO 4 -C < BiVO 4 -H < BiVO 4 -R for each consecutive on−off cycle, suggesting an improved exciton pair separation tendency and surface charge antirecombination process over BiVO 4 -R in comparison to the other pristine materials. 51 The result is in good agreement with PL, impedance, carrier density, and transient photocurrent analysis (Figure 8a).…”
Section: Resultssupporting
confidence: 84%
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“…The results were observed to follow the trend of BiVO 4 -C < BiVO 4 -H < BiVO 4 -R for each consecutive on−off cycle, suggesting an improved exciton pair separation tendency and surface charge antirecombination process over BiVO 4 -R in comparison to the other pristine materials. 51 The result is in good agreement with PL, impedance, carrier density, and transient photocurrent analysis (Figure 8a).…”
Section: Resultssupporting
confidence: 84%
“…Moreover, the photoelectrochemical transient measurements illustrated an enhanced transient photocurrent intensity of BiVO 4 -R (Figure d). The results were observed to follow the trend of BiVO 4 -C < BiVO 4 -H < BiVO 4 -R for each consecutive on–off cycle, suggesting an improved exciton pair separation tendency and surface charge antirecombination process over BiVO 4 -R in comparison to the other pristine materials. ,, …”
Section: Resultsmentioning
confidence: 99%
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“…Among widely researched topics in sustainable energy and the environment, the enhancement of the efficiency of the overall water splitting process has been vigorously pursued. [1][2][3] Research has focused on the availability of suitable semiconductors that have a low-cost, high stability, a narrow band gap, and a high quantum efficiency. 4 Monoclinic BiVO 4 has emerged as a promising photoanode material due to its non-toxicity, suitable band gap, i.e., 2.4-2.5 eV, its stability in aqueous medium, resistance to corrosion, and favorable band edge positions for water redox reactions.…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, it is important to develop an efficient and practical anode system for construction of high-performance PEC cells. [2][3][4] BiVO 4 is a highly promising photoanode, which exhibits proper band gap ($2.4 eV) for solar light absorption and favorable valence band very near the thermodynamic oxygen evolution potential. [5][6][7] However, poor charge transport, excessive electron-hole recombination, slow hole kinetics of oxygen evolution reaction and limited quantum efficiency are major challenges with the BiVO 4 photoanodes.…”
Section: Introductionmentioning
confidence: 99%