A rhenium catalyst with bifunctional pyrene groups boosts natural light-driven CO2 reduction

2020 ◽  
Vol 22 (24) ◽  
pp. 8614-8622
Author(s):  
Li-Qi Qiu ◽  
Kai-Hong Chen ◽  
Zhi-Wen Yang ◽  
Liang-Nian He
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Light Harvesting ◽  
Co2 Reduction ◽  
Transfer Efficiency ◽  
Natural Light ◽  
Intermolecular Electron Transfer

A rhenium–pyrene catalyst that dramatically promotes sunlight-induced CO2RR efficiency was developed by enhancing intermolecular electron transfer efficiency and visible light-harvesting ability.

Effects of Interfacial Electron Transfer in Metal Complex–Semiconductor Hybrid Photocatalysts on Z-Scheme CO2 Reduction under Visible Light

ACS Catalysis ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 9744-9754 ◽  
Author(s):  
Akinobu Nakada ◽  
Ryo Kuriki ◽  
Keita Sekizawa ◽  
Shunta Nishioka ◽  
Junie Jhon M. Vequizo ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Metal Complex ◽  
Visible Light ◽  
Co2 Reduction ◽  
Interfacial Electron Transfer ◽  
Complex Semiconductor

scholarly journals Selective CO2 reduction to HCOOH on a Pt/In2O3/g-C3N4 multifunctional visible-photocatalyst

RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22460-22467 ◽  
Author(s):  
Jiehong He ◽  
Pin Lv ◽  
Jian Zhu ◽  
Hexing Li
Keyword(s):  
Visible Light ◽  
High Activity ◽  
Light Harvesting ◽  
Co2 Reduction ◽  
Visible Photocatalyst

A multifunctional Pt/In2O3/g-C3N4 catalyst exhibited high activity and selectivity to HCOOH during CO2 reduction owing to the synergy between visible-light harvesting, CO2 activation, HER, and photoelectron–hole separation via heterojunctions.

scholarly journals Ionic Liquid-Modified Porous Organometallic Polymers as Efficient and Selective Photocatalysts for Visible-Light-Driven CO2 Reduction

Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Zhi-Hua Zhou ◽  
Kai-Hong Chen ◽  
Song Gao ◽  
Zhi-Wen Yang ◽  
Liang-Nian He
Keyword(s):  
Ionic Liquid ◽  
Visible Light ◽  
Crucial Role ◽  
Light Harvesting ◽  
Co2 Reduction ◽  
Organometallic Polymers ◽  
Reduction Potentials ◽  
Visible Light Driven ◽  
Key Steps

In the photoreduction of CO2 to CO, the competitive H2 evolution is always inevitable due to the approximate reduction potentials of H+/H2 and CO2/CO, which results in poor selectivity for CO production. Herein, imidazolium-type ionic liquid- (IL-) modified rhenium bipyridine-based porous organometallic polymers (Re-POMP-IL) were designed as efficient and selective photocatalysts for visible-light CO2 photoreduction to CO based on the affinity of IL with CO2. Photoreduction studies demonstrated that CO2 photoreduction promoted by Re-POMP-IL functioning as the catalyst exhibits excellent CO selectivity up to 95.5% and generate 40.1 mmol CO/g of Re-POMP-IL1.0 (obtained by providing equivalent [(5,5′-divinyl-2,2′-bipyridine)Re(CO)3Cl] and 3-ethyl-1-vinyl-1H-imidazol-3-ium bromide) at 12 h, outperforming that attained with the corresponding Re-POMP analogue without IL, which highlights the crucial role of IL. Notably, CO2 adsorption, light harvesting, and transfer of photogenerated charges as key steps for CO2RR were studied by employing POMPs modified with different amounts of IL as photocatalysts, among which the CO2 affinity as an important factor for POMPs catalyzed CO2 reduction is revealed. Overall, this work provides a practical pathway to improve the CO2 photoreduction efficiency and CO selectivity by employing IL as a regulator.

Plasmonic Control of Multi-Electron Transfer and C–C Coupling in Visible-Light-Driven CO2 Reduction on Au Nanoparticles

Nano Letters ◽  
2018 ◽  
Vol 18 (4) ◽  
pp. 2189-2194 ◽  
Author(s):  
Sungju Yu ◽  
Andrew J. Wilson ◽  
Jaeyoung Heo ◽  
Prashant K. Jain
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Au Nanoparticles ◽  
Co2 Reduction ◽  
Visible Light Driven

Band engineering of mesoporous TiO2 with tunable defects for visible-light hydrogen generation

CrystEngComm ◽  
2020 ◽  
Vol 22 (23) ◽  
pp. 4030-4038
Author(s):  
Jin Yan ◽  
Lei Dai ◽  
Penghui Shi ◽  
Jinchen Fan ◽  
Yulin Min ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Light Absorption ◽  
Hydrogen Generation ◽  
Mesoporous Tio2 ◽  
Transfer Efficiency ◽  
Semiconductor Photocatalysis ◽  
Band Engineering

A limited light absorption range and low electron transfer efficiency have always been the major problems in semiconductor photocatalysis.

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