Photocatalytic production of H2O2 and its in situ utilization over atomic-scale Au modified MoS2 nanosheets

Song, Haiyan; Wei, Lishan; Chen, Chunxia; Wen, Congcong; Han, Fuqin

doi:10.1016/j.jcat.2019.06.015

Cited by 102 publications

(41 citation statements)

References 78 publications

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“…As illustrated in Fig. 4a , four characteristic peaks of DMPO−O 2 •− were observed for all NBs, confirming the generation of O 2 •− 60 , 62 , 63 . The introduction of S 2 2− vacancies was found to enhance the reduction of O 2 to O 2 •− , and the additional introduction of S 2− vacancies led to a further increased photocatalytic activity.…”

Section: Resultssupporting

confidence: 64%

Efficient photocatalytic hydrogen peroxide generation coupled with selective benzylamine oxidation over defective ZrS3 nanobelts

et al. 2021

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Photocatalytic hydrogen peroxide (H2O2) generation represents a promising approach for artificial photosynthesis. However, the sluggish half-reaction of water oxidation significantly limits the efficiency of H2O2 generation. Here, a benzylamine oxidation with more favorable thermodynamics is employed as the half-reaction to couple with H2O2 generation in water by using defective zirconium trisulfide (ZrS3) nanobelts as a photocatalyst. The ZrS3 nanobelts with disulfide (S22−) and sulfide anion (S2−) vacancies exhibit an excellent photocatalytic performance for H2O2 generation and simultaneous oxidation of benzylamine to benzonitrile with a high selectivity of >99%. More importantly, the S22− and S2− vacancies can be separately introduced into ZrS3 nanobelts in a controlled manner. The S22− vacancies are further revealed to facilitate the separation of photogenerated charge carriers. The S2− vacancies can significantly improve the electron conduction, hole extraction, and kinetics of benzylamine oxidation. As a result, the use of defective ZrS3 nanobelts yields a high production rate of 78.1 ± 1.5 and 32.0 ± 1.2 μmol h−1 for H2O2 and benzonitrile, respectively, under a simulated sunlight irradiation.

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Section: Resultssupporting

confidence: 64%

Efficient photocatalytic hydrogen peroxide generation coupled with selective benzylamine oxidation over defective ZrS3 nanobelts

et al. 2021

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“…87.8 and 84.1 eV in the Au/TiO 2 -001 nanosheets, belonging to the Au 4f 7/2 and Au 4f 5/2 peaks of metallic Au 0 species, respectively. 60 These results clearly confirm that the Au clusters are successfully introduced on TiO 2 -001 nanosheets. The photocatalytic hydrogen evolution is selected as a model reaction to evaluate the photocatalytic performance of TiO 2 -101, Au/TiO 2 -101, TiO 2 -001 and Au/TiO 2 -001 samples under visible light or simulated solar light irradiation, as depicted in Fig.…”

supporting

confidence: 62%

Engineering TiO₂nanosheets with exposed (001) facetsviathe incorporation of Au clusters for boosted photocatalytic hydrogen production

et al. 2020

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“…However, a further increase of the Pd content resulted in the formation of Pd domains and hence a decrease of H 2 O 2 selectivity. SACs have also been prepared on metal oxide supports, such as TiO 2 and FeO x [64,65], by taking advantage of the strong metal-oxygen interactions. Unfortunately, metal oxide supports are usually insulators or semiconductors with low electrical conductivity, and relatively unstable under corrosive electrochemical operating conditions.…”

Section: Noble Metal Sacsmentioning

confidence: 99%

Recent Progress of Single‐atom Catalysts in the Electrocatalytic Reduction of Oxygen to Hydrogen Peroxide

Zhu

Chen

2020

Electroanalysis

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Single-atom catalysts (SACs) have been attracting extensive interest in the electrocatalytic production of hydrogen peroxide by oxygen reduction reaction (ORR). This is due to the maximal efficiency of atom utilization and intimate interaction of the metal centers with the supporting matrix that may be exploited for deliberate manipulation of the electrocatalytic activity and selectiv-ity, in comparison with the conventional nanoparticle counterparts. Herein, we summarize recent progress of the design and engineering of SACs towards ORR for H 2 O 2 generation, based on both noble and non-noble metals. We conclude the review with a perspective highlighting the promises and challenges involved in future research.

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Photocatalytic production of H2O2 and its in situ utilization over atomic-scale Au modified MoS2 nanosheets

Cited by 102 publications

References 78 publications

Efficient photocatalytic hydrogen peroxide generation coupled with selective benzylamine oxidation over defective ZrS3 nanobelts

Efficient photocatalytic hydrogen peroxide generation coupled with selective benzylamine oxidation over defective ZrS3 nanobelts

Engineering TiO₂nanosheets with exposed (001) facetsviathe incorporation of Au clusters for boosted photocatalytic hydrogen production

Recent Progress of Single‐atom Catalysts in the Electrocatalytic Reduction of Oxygen to Hydrogen Peroxide

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Photocatalytic production of H2O2 and its in situ utilization over atomic-scale Au modified MoS2 nanosheets

Cited by 102 publications

References 78 publications

Efficient photocatalytic hydrogen peroxide generation coupled with selective benzylamine oxidation over defective ZrS3 nanobelts

Efficient photocatalytic hydrogen peroxide generation coupled with selective benzylamine oxidation over defective ZrS3 nanobelts

Engineering TiO2nanosheets with exposed (001) facetsviathe incorporation of Au clusters for boosted photocatalytic hydrogen production

Recent Progress of Single‐atom Catalysts in the Electrocatalytic Reduction of Oxygen to Hydrogen Peroxide

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Engineering TiO₂nanosheets with exposed (001) facetsviathe incorporation of Au clusters for boosted photocatalytic hydrogen production