Regeneratable trinuclear iron-oxo cocatalyst for photocatalytic hydrogen evolution

Wang, Yang; Shi, Litong; Qian, Bingzhi; Huang, Xinjun; Sun, Xiaodong; Wang, Baoxin; Song, Xi‐Ming; Huang, Hongwei; Zhang, Yu; Ma, Tianyi

doi:10.1016/j.cej.2020.127551

Cited by 15 publications

(6 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The higher transient photocurrent of {ZnW-TPT} than that of TPT verifies that it has a superior separation efficiency of photogenerated electrons and holes (Figure e). Significantly, {ZnW-TPT} without light irradiation exhibits a higher significant amount of current than that of TPT, which indicates {ZnW-TPT} has a better charge transfer ability . Meanwhile, the low resistance of {ZnW-TPT} under light indicates that {ZnW-TPT} has excellent photocatalytic activity (Figure f) …”

Section: Results and Discussionmentioning

confidence: 98%

See 1 more Smart Citation

Photocatalytic Multielectron Reduction of Nitroarenes to Anilines by Utilizing an Electron-Storable Polyoxometalate-Based Metal–Organic Framework

Jiao

Sun

Chen

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

A powerful approach to generate photocatalysts for the highly selective reduction of nitrobenzene using light as the driving force is a combination of photosensitizers and electron-storable components in a cooperative photocatalysis fashion. Herein, a new precious metal-free photocatalyst, {ZnW-TPT}, was prepared by incorporating a Zn-substituted monovacant Keggin polyanion [SiZnW11O39]6– and a photoactive organic bridging link 2,4,6-tri(4-pyridyl)-1,3,5-triazine (TPT) into a framework. In this structure, the direct coordination bond between [SiZnW11O39]6– and the TPT ligand and the π–π interactions between TPT molecules help separate and migrate photogenerated carriers, which improves the photocatalytic activity of {ZnW-TPT}. The photoelectrochemical properties of {ZnW-TPT} were well studied by solid UV–vis absorption, fluorescence, transient photocurrent response, and electrochemical impedance spectroscopy tests. {ZnW-TPT} efficiently converts using hydrazine hydrate with 99% conversion and 99% selectivity for anilines under mild conditions.

show abstract

Section: Results and Discussionmentioning

confidence: 98%

“…Significantly, {ZnW-TPT} without light irradiation exhibits a higher significant amount of current than that of TPT, which indicates {ZnW-TPT} has a better charge transfer ability. 41 Meanwhile, the low resistance of {ZnW-TPT} under light indicates that {ZnW-TPT} has excellent photocatalytic activity (Figure 2f). 42 2.4.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Multielectron Reduction of Nitroarenes to Anilines by Utilizing an Electron-Storable Polyoxometalate-Based Metal–Organic Framework

Jiao

Sun

Chen

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…As reported, it can be found that the structure of [Fe 3 O(HCO 2 ) 6 (H 2 O) 3 ]Cl is stable during 2 days long photocatalytic reaction process, and the cycle stability of its hydrogen production performance was also satisfied 14 . As a noble‐metal‐free cocatalyst that can also show photocatalytic hydrogen evolution capability itself, the hydrogen production capacity of the trinuclear iron‐oxo complex can reach 19 times that of the metal salts in the same conditions.…”

Section: Introductionmentioning

confidence: 64%

“…Water splitting has always been a vital subject of advancing energy‐friendly development strategies 10–13 . Lately, the trinuclear iron‐oxo complex [Fe 3 O(O 2 CH) 6 (H 2 O) 3 ]Cl has been reported as an efficient and cost‐effective soluble cocatalyst in photocatalytic systems for hydrogen evolution from water splitting 14 . The complex [Fe 3 O(O 2 CH) 6 (H 2 O) 3 ]Cl is a typical [M 3 O(L 1 ) 6 (L 2 ) 3 ] +/0 structure compound 15–22 .…”

Section: Introductionmentioning

confidence: 99%

“…[10][11][12][13] Lately, the trinuclear iron-oxo complex [Fe 3 O(O 2 CH) 6 (H 2 O) 3 ]Cl has been reported as an efficient and cost-effective soluble cocatalyst in photocatalytic systems for hydrogen evolution from water splitting. 14 The complex [Fe 3 O(O 2 CH) 6 (H 2 O) 3 ]Cl is a typical [M 3 O(L 1 ) 6 (L 2 ) 3 ] +/0 structure compound. [15][16][17][18][19][20][21][22] Structurally, there is a μ 3 -O located in the body center of the compound, and three metal atoms (M) are connected by it simultaneously.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Binary trinuclear metal‐oxo sub‐nanomaterials for photocatalytic hydrogen and chlorine production from seawater

Wang

Shi

et al. 2022

SusMat

Self Cite

View full text Add to dashboard Cite

Owing to the need for regenerant and self-reduction problem, the hydrogen performance of sub-nano-sized trinuclear iron-oxo complexes is still far from satisfied with affordability and practicality. Herein, two binary photocatalytic systems based on trinuclear metal-oxo complexes have been first constructed and experimentally confirmed to be competent for seawater hydrogen evolution (715.4 and 271.9 μmol of hydrogen can be found, respectively, after 48 h). Notably, chloride ions act as the hole catcher and move into the gas phase in the stable form of chlorine. Similar to heterogeneous structures, homogeneous systems not only enhance the hydrogen performance while ensuring the stability of metaloxo complexes, but also shorten the consumption of photogenerated carriers by dissolved impurities in the seawater. This new attempt of building pluralistic sub-nanometric systems may offer novel design strategies with noble-metalfree catalysts and low-cost candidates for traditional semiconductor materials in enhancing photocatalytic efficiency and performing chlorine evolution from seawater splitting.

show abstract

Impactful Role of Earth‐Abundant Cocatalysts in Photocatalytic Water Splitting

Chen

Guo

et al. 2023

Solar Fuels

View full text Add to dashboard Cite

Regeneratable trinuclear iron-oxo cocatalyst for photocatalytic hydrogen evolution

Cited by 15 publications

References 27 publications

Photocatalytic Multielectron Reduction of Nitroarenes to Anilines by Utilizing an Electron-Storable Polyoxometalate-Based Metal–Organic Framework

Photocatalytic Multielectron Reduction of Nitroarenes to Anilines by Utilizing an Electron-Storable Polyoxometalate-Based Metal–Organic Framework

Binary trinuclear metal‐oxo sub‐nanomaterials for photocatalytic hydrogen and chlorine production from seawater

Impactful Role of Earth‐Abundant Cocatalysts in Photocatalytic Water Splitting

Contact Info

Product

Resources

About