Core–shell structured catalysts for thermocatalytic, photocatalytic, and electrocatalytic conversion of CO₂

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(10), P. 2937 - 3004

Published: Jan. 1, 2020

Catalytic conversion of CO2 to produce fuels and chemicals is attractive in prospect because it provides an alternative fossil feedstocks the benefit converting cycling greenhouse gas on a large scale. In today's technology, converted into hydrocarbon Fischer-Tropsch synthesis via water shift reaction, but processes for direct such as methane, methanol, C2+ hydrocarbons or syngas are still far from large-scale applications processing challenges that may be best addressed by discovery improved catalysts-those with enhanced activity, selectivity, stability. Core-shell structured catalysts relatively new class nanomaterials allow controlled integration functions complementary materials optimised compositions morphologies. For conversion, core-shell can provide distinctive advantages addressing catalyst sintering activity loss reforming processes, insufficient product selectivity thermocatalytic hydrogenation, low efficiency photocatalytic electrocatalytic hydrogenation. preceding decade, substantial progress has been made synthesis, characterization, evaluation potential applications. Nonetheless, remain inexpensive, robust, regenerable this class. This review in-depth assessment these thermocatalytic, photocatalytic, valuable hydrocarbons.

Language: Английский

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Molecular enhancement of heterogeneous CO2 reduction

Nature Materials, Journal Year: 2020, Volume and Issue: 19(3), P. 266 - 276

Published: Feb. 25, 2020

Language: Английский

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Single‐Atom Catalysts for Electrocatalytic Applications

Advanced Functional Materials, Journal Year: 2020, Volume and Issue: 30(31)

Published: June 9, 2020

Abstract The recent advances in electrocatalysis for oxygen reduction reaction (ORR), evolution (OER), hydrogen (HER), oxidation (HOR), carbon dioxide (CO 2 RR), and nitrogen (NRR) are thoroughly reviewed. This comprehensive review focuses on the single‐atom catalysts (SACs) including Sc, Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo, Sn, W, Bi, Ru, Rh, Pd, Ag, Ir, Pt, Au with single‐metal sites or dual‐metal sites. development of electrocatalysts novel configurations compositions is documented. understanding process–structure–property relationships highlighted. For SACs, their electrocatalytic performance stability fuel cells, zinc–air batteries, electrolyzers, CO RR, NRR summarized. challenges perspectives emerging field discussed.

Language: Английский

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Organic Electrochemistry: Molecular Syntheses with Potential

ACS Central Science, Journal Year: 2021, Volume and Issue: 7(3), P. 415 - 431

Published: March 9, 2021

Efficient and selective molecular syntheses are paramount to

Language: Английский

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CO₂ Reduction: From Homogeneous to Heterogeneous Electrocatalysis

Accounts of Chemical Research, Journal Year: 2020, Volume and Issue: 53(1), P. 255 - 264

Published: Jan. 8, 2020

Due to increasing worldwide fossil fuel consumption, carbon dioxide levels have increased in the atmosphere with increasingly important impacts on environment. Renewable and clean sources of energy been proposed, including wind solar, but they are intermittent require efficient scalable storage technologies. Electrochemical CO2 reduction reaction (CO2RR) provides a valuable approach this area. It combines solar- or wind-generated electrical production chemical bonds carbon-based fuels. can provide ways integrate capture, utilization, cycles while maintaining controlled atmospheric CO2. Electrochemistry allows for utilization an input drive reactions. Because is kinetically inert, highly active catalysts required decrease barriers sufficiently so that rates be achieved sufficient electrochemical reduction. Given associated multiple electron-proton CO, formaldehyde (HC(O)H), formic acid, formate (HC(O)OH, HC(O)O-), more reduced forms carbon, there also demand high selectivity catalysis. Catalysts explored include homogeneous solution, immobilized surfaces, heterogeneous catalysts. In catalysis, occurs following diffusion catalyst electrode where proton coupled electron transfer occurs. Useful area typically transition-metal complexes organic ligands properties utilize combinations metal ligand redox levels. As way limit amount catalyst, device-like configurations, added surfaces conductive substrates by surface binding, polymeric films, molecular structures electronic configurations related solution. Immobilized, suffer from performance losses even decomposition during long-term cycles, amenable detailed mechanistic investigations. parallel efforts, nanocatalysts detail development facile synthetic procedures offer catalytic areas. Their activity stability attracted significant level investigation, possible exploitation large-scale applications. However, translation reactivity creates new environment complicates elucidation details identification site exploring pathways. Here, results previous studies based complex electroreduction summarized. Early showed Ru, Ir, Rh, Os, well-defined structures, all capable catalyzing CO formate. Derivatives were attached conducting electrodes bonding, noncovalent polymerization. The concept binding has extended preparation chemically deposition nanostructured such as nano tin, copper, which shown selectivities activities toward our presentation, we end Account recent advances perspective about application electrocatalysis

Language: Английский

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Electro-organic synthesis – a 21^stcentury technique

Chemical Science, Journal Year: 2020, Volume and Issue: 11(46), P. 12386 - 12400

Published: Jan. 1, 2020

This perspective provides insight into recent electro-organic methods and general trends in this field, opens up prospects for future viewpoints.

Language: Английский

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Electrocatalytic Refinery for Sustainable Production of Fuels and Chemicals

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(36), P. 19572 - 19590

Published: Feb. 19, 2021

Abstract Compared to modern fossil‐fuel‐based refineries, the emerging electrocatalytic refinery (e‐refinery) is a more sustainable and environmentally benign strategy convert renewable feedstocks energy sources into transportable fuels value‐added chemicals. A crucial step in conducting e‐refinery processes development of appropriate reactions optimal electrocatalysts for efficient cleavage formation chemical bonds. However, compared well‐studied primary (e.g., O 2 reduction, water splitting), mechanistic aspects materials design complex are yet be settled. To address this challenge, herein, we first present fundamentals heterogeneous electrocatalysis some reactions, then implement these establish framework by coupling situ generated intermediates (integrated reactions) or products (tandem reactions). We also set principles strategies efficiently manipulate reaction pathways.

Language: Английский

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Chemically and electrochemically catalysed conversion of CO2 to CO with follow-up utilization to value-added chemicals

Nature Catalysis, Journal Year: 2018, Volume and Issue: 1(4), P. 244 - 254

Published: April 10, 2018

Language: Английский

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CO2 electrochemical catalytic reduction with a highly active cobalt phthalocyanine

Nature Communications, Journal Year: 2019, Volume and Issue: 10(1)

Published: Aug. 9, 2019

Abstract Molecular catalysts that combine high product selectivity and current density for CO 2 electrochemical reduction to or other chemical feedstocks are urgently needed. While earth-abundant metal-based molecular electrocatalysts with conversion known, they characterized by densities significantly lower than those obtained solid-state metal materials. Here, we report a cobalt phthalocyanine bearing trimethyl ammonium group appended the macrocycle is capable of reducing in water activity over broad pH range from 4 14. In flow cell configuration operating basic conditions, production occurs excellent (ca. 95%), good stability maximum partial 165 mA cm −2 (at −0.92 V vs. RHE), matching most active noble nanocatalysts. These results represent state-of-the-art performance electrolytic carbon dioxide catalyst.

Language: Английский

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An industrial perspective on catalysts for low-temperature CO2 electrolysis

Nature Nanotechnology, Journal Year: 2021, Volume and Issue: 16(2), P. 118 - 128

Published: Jan. 11, 2021

Language: Английский

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