Visible‐Light‐Driven CO2 Reduction by Mesoporous Carbon Nitride Modified with Polymeric Cobalt Phthalocyanine DOI
Souvik Roy, Erwin Reisner

Angewandte Chemie International Edition, Journal Year: 2019, Volume and Issue: 58(35), P. 12180 - 12184

Published: July 5, 2019

Abstract The integration of molecular catalysts with low‐cost, solid light absorbers presents a promising strategy to construct for the generation solar fuels. Here, we report photocatalyst CO 2 reduction that consists polymeric cobalt phthalocyanine catalyst (CoPPc) coupled mesoporous carbon nitride (mpg‐CN x ) as photosensitizer. This precious‐metal‐free hybrid selectively converts in organic solvents under UV/Vis (AM 1.5G, 100 mW cm −2 , λ>300 nm) cobalt‐based turnover number 90 after 60 h. Notably, retains % evolution activity visible irradiation (λ>400 and displays moderate water tolerance. situ polymerization allows control loading is key achieving photocatalytic conversion.

Language: Английский

Particulate Photocatalysts for Light-Driven Water Splitting: Mechanisms, Challenges, and Design Strategies DOI
Qian Wang, Kazunari Domen

Chemical Reviews, Journal Year: 2019, Volume and Issue: 120(2), P. 919 - 985

Published: Aug. 8, 2019

Solar-driven water splitting provides a leading approach to store the abundant yet intermittent solar energy and produce hydrogen as clean sustainable carrier. A straightforward route light-driven is apply self-supported particulate photocatalysts, which expected allow be competitive with fossil-fuel-derived on levelized cost basis. More importantly, powder-based systems can lend themselves making functional panels large scale while retaining intrinsic activity of photocatalyst. However, all attempts generate via water-splitting date have unfortunately fallen short efficiency values required for practical applications. Photocatalysis photocatalyst particles involves three sequential steps: (i) absorption photons higher energies than bandgap excitation electron-hole pairs in particles, (ii) charge separation migration these photoexcited carriers, (iii) surface chemical reactions based carriers. In this review, we focus challenges each step summarize material design strategies overcome obstacles limitations. This review illustrates that it possible employ fundamental principles underlying photosynthesis tools materials science prepare photocatalysts overall splitting.

Language: Английский

Citations

2160

Heterogeneous Single-Atom Photocatalysts: Fundamentals and Applications DOI
Chao Gao, Jingxiang Low, Ran Long

et al.

Chemical Reviews, Journal Year: 2020, Volume and Issue: 120(21), P. 12175 - 12216

Published: March 18, 2020

Single-atom photocatalysts have shown their compelling potential and arguably become the most active research direction in photocatalysis due to fascinating strengths enhancing light-harvesting, charge transfer dynamics, surface reactions of a photocatalytic system. While numerous comprehensions about single-atom recently been amassed, advanced characterization techniques vital theoretical studies are strengthening our understanding on these materials, allowing us forecast working mechanisms applications photocatalysis. In this review, we begin by describing general background definition photocatalysts. A brief discussion metal-support interactions is then provided. Thereafter, current available for summarized. After having some fundamental photocatalysts, advantages discussed. Finally, end review with look into remaining challenges future perspectives We anticipate that will provide inspiration discovery manifestly stimulating development emerging area.

Language: Английский

Citations

829

Artificial photosynthesis: opportunities and challenges of molecular catalysts DOI Creative Commons
Biaobiao Zhang, Licheng Sun

Chemical Society Reviews, Journal Year: 2019, Volume and Issue: 48(7), P. 2216 - 2264

Published: Jan. 1, 2019

This review emphasizes the significance of molecular catalysts in artificial photosynthesis, and discusses opportunities, challenges future catalysis.

Language: Английский

Citations

802

Cooperative Coupling of Oxidative Organic Synthesis and Hydrogen Production over Semiconductor-Based Photocatalysts DOI
Ming–Yu Qi, Marco Conte, Masakazu Anpo

et al.

Chemical Reviews, Journal Year: 2021, Volume and Issue: 121(21), P. 13051 - 13085

Published: Aug. 11, 2021

Merging hydrogen (H2) evolution with oxidative organic synthesis in a semiconductor-mediated photoredox reaction is extremely attractive because the clean H2 fuel and high-value chemicals can be coproduced under mild conditions using light as sole energy input. Following this dual-functional photocatalytic strategy, dreamlike pathway for constructing C–C/C–X (X = C, N, O, S) bonds from abundant readily available X–H bond-containing compounds concomitant release of fulfilled without need external chemical reagents, thus offering green fascinating synthetic strategy. In review, we begin by presenting concise overview on general background traditional production then focus fundamental principles cooperative coupling selective simultaneous utilization photoexcited electrons holes over semiconductor-based catalysts to meet economic sustainability goal. Thereafter, put dedicated emphasis recent key progress various transformations, including alcohol oxidation, methane conversion, amines coupling, cross-coupling, cyclic alkanes dehydrogenation, reforming lignocellulosic biomass, so on. Finally, remaining challenges future perspectives flourishing area have been critically discussed. It anticipated that review will provide enlightening guidance rational design such system, thereby stimulating development economical environmentally benign solar generation value-added fine chemicals.

Language: Английский

Citations

721

Bifunctional Heterostructured Transition Metal Phosphides for Efficient Electrochemical Water Splitting DOI Creative Commons
Haojie Zhang, A. Wouter Maijenburg, Xiaopeng Li

et al.

Advanced Functional Materials, Journal Year: 2020, Volume and Issue: 30(34)

Published: June 29, 2020

Abstract Reducing green hydrogen production costs is essential for developing a economy. Developing cost‐effective electrocatalysts water electrolysis thus of great research interest. Among various material candidates, transition metal phosphides (TMP) have emerged as robust bifunctional both the evolution reaction (HER) and oxygen (OER) due to their phases tunable electronic structure. Recently, heterostructured catalysts exhibited significantly enhanced activities toward HER/OER. The enhancement can be attributed increased amount accessible active sites, accelerated mass/charge transfer, optimized adsorption intermediates, which arise from synergistic effects heterostructure. Herein, comprehensive overview recent progress TMP‐based heterostructure introduced provide an insight into preparation corresponding mechanisms. It starts with summarizing general fundamental aspects HER/OER effect heterostructures catalytic activity. Next, innovational strategies design construct overall splitting activity, well related mechanisms, are discussed in detail. Finally, summary perspective further opportunities challenges highlighted development points practical application mechanistic studies.

Language: Английский

Citations

570

Towards molecular understanding of local chemical environment effects in electro- and photocatalytic CO2 reduction DOI
Andreas Wagner, Constantin D. Sahm, Erwin Reisner

et al.

Nature Catalysis, Journal Year: 2020, Volume and Issue: 3(10), P. 775 - 786

Published: Sept. 28, 2020

Language: Английский

Citations

565

Transition metal-based catalysts for the electrochemical CO2reduction: from atoms and molecules to nanostructured materials DOI Creative Commons
Federico Franco, Clara Rettenmaier, Hyo Sang Jeon

et al.

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(19), P. 6884 - 6946

Published: Jan. 1, 2020

An overview of the main strategies for rational design transition metal-based catalysts electrochemical conversion CO2, ranging from molecular systems to single-atom and nanostructured catalysts.

Language: Английский

Citations

388

Photocatalytic CO2 reduction DOI
Siyuan Fang, Motiar Rahaman, Jaya Bharti

et al.

Nature Reviews Methods Primers, Journal Year: 2023, Volume and Issue: 3(1)

Published: Aug. 10, 2023

Language: Английский

Citations

330

Molecular catalysis of CO2 reduction: recent advances and perspectives in electrochemical and light-driven processes with selected Fe, Ni and Co aza macrocyclic and polypyridine complexes DOI Creative Commons
Etienne Boutin, Lydia Merakeb, Bing Ma

et al.

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(16), P. 5772 - 5809

Published: Jan. 1, 2020

Recent developments in (photo)electrochemical CO2 reduction combining Fe, Ni, and Co molecular complexes (semi)conductive materials have led to high catalytic performances.

Language: Английский

Citations

303

Efficient Visible-Light-Driven CO2 Reduction by a Cobalt Molecular Catalyst Covalently Linked to Mesoporous Carbon Nitride DOI
Bing Ma, Gui Chen, Claire Fave

et al.

Journal of the American Chemical Society, Journal Year: 2020, Volume and Issue: 142(13), P. 6188 - 6195

Published: March 8, 2020

Achieving visible-light-driven carbon dioxide reduction with high selectivity control and durability while using only earth abundant elements requires new strategies. Hybrid catalytic material was prepared upon covalent grafting a Co-quaterpyridine molecular complex to semiconductive mesoporous graphitic nitride (mpg-C3N4) through an amide linkage. The characterized by various spectroscopic techniques, including XPS, IR, impedance spectroscopy. It proved be selective catalyst for CO production in acetonitrile solar simulator 98% selectivity, being remarkably robust since no degradation observed after 4 days of irradiation (ca. 500 cycles). This unique combination simple opens pathways CO2 light-driven reduction.

Language: Английский

Citations

255