Recent progress on ZIF-8 based MOF derivatives for electrocatalysis

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 499, P. 215492 - 215492

Published: Oct. 27, 2023

Language: Английский

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Modulating the Electronic Properties of Single Ni Atom Catalyst via First‐Shell Coordination Engineering to Boost Electrocatalytic Flue Gas CO₂ Reduction

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

Abstract Electrochemical converting CO 2 to via single atom catalyst is an effective strategy for reducing concentration in the atmosphere and achieving a carbon‐neutral cycle. However, relatively low industrial processes large energy barriers activating severely obstruct actual application. Reasonably modulating coordination shell of active center enhance activity catalysts. Herein, well‐designed single‐atom electrocatalyst Ni‐N 3 S 1 developed large‐scale synthesis strategy. The constructed S‐C exhibits superior catalytic than 4 ‐C conversion H‐type cells, industrial‐level current density with excellent durability at wide pH range can be achieved gas‐diffusion flow cells. Experimental results functional theory (DFT) calculation demonstrate that introducing electronegative significantly regulate electronic structure site, promoting adsorption capacity decreasing barrier *COOH formation, thus larger size flexibility sulfur mitigate nickel agglomeration stability catalyst. This work provides designing highly catalysts electrocatalysis reactive sites.

Language: Английский

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Nickel–Nitrogen–Carbon (Ni–N–C) Electrocatalysts Toward CO₂ electroreduction to CO: Advances, Optimizations, Challenges, and Prospects

Energy & environment materials, Journal Year: 2024, Volume and Issue: 7(5)

Published: May 13, 2024

Electrocatalytic reduction of CO 2 into high energy‐density fuels and value‐added chemicals under mild conditions can promote the sustainable cycle carbon decrease current energy environmental problems. Constructing electrocatalyst with activity, selectivity, stability, low cost is really matter to realize industrial application electrocatalytic (ECR). Metal–nitrogen–carbon (M–N–C), especially Ni–N–C, display excellent performance, such as nearly 100% density, outstanding tolerance, etc., which considered possess broad prospects. Based on research status, starting from mechanism ECR existence form Ni active species, latest progress Ni–N–C electrocatalysts in electroreduction systematically summarized. An overview emphatically interpreted regulatory strategies for activity optimization over including N coordination modulation, vacancy defects construction, morphology design, surface modification, heteroatom activation, bimetallic cooperation. Finally, some urgent problems future prospects designing catalysts are discussed. This review aims provide guidance design development practical application.

Language: Английский

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Remote p–d orbital hybridization via first/second-layer coordination of Fe single atoms with heteroatoms for enhanced electrochemical CO₂-to-CO reduction

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(15), P. 8991 - 9001

Published: Jan. 1, 2024

d–p orbital hybridization induced by S/N in the coordination layer of pyrrole-type Fe–N 4 can modulate electronic structure Fe single atoms, enabling *COOH adsorption and *CO desorption to exclusively furnish CO but suppressing H 2 formation.

Language: Английский

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Design of Mg-Ni binary single-atom catalysts for conversion of carbon dioxide to syngas with a wide tunable ratio: Each species doing its own job or working together to win?

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 671, P. 165 - 174

Published: May 23, 2024

Language: Английский

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Tuning organic ligands to optimize the nitrogen reduction performance of Co(II) or Ni(II)‐based MOFs

Materials Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 8(19), P. 3203 - 3213

Published: Jan. 1, 2024

The electrocatalytic nitrogen reduction to NH 3 performance of five Co(Ni)-MOFs with a similar structure can be optimized significantly by adjusting the functional block pyridine-bridging ligands.

Language: Английский

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An imidazolate framework-derived single-atom nickel catalyst for the reduction of CO₂ to CO

New Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This graphical abstract highlights the intricate synthesis route tailored for development of a promising single-atom MOF electrocatalyst reduction carbon dioxide.

Language: Английский

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Coupling Value-Added Methanol Oxidation with CO₂ Electrolysis by Low-Coordinated Atomic Ni Sites

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: May 22, 2025

The combination of CO2 fixation and small organic molecule oxidation offers a promising solution to increasing severe environmental issues energy crises. Here, low-coordinated NiN3 sites were anchored onto nitrogen-doped ordered mesoporous carbon (Ni-SAs/NOMC), which is capable efficiently catalyzing the coupled methanol reaction reduction (MOR||CO2RR), thereby reducing required for conversion enhancing economic value electrolytic system. In membrane electrode assembly electrolyzer-based MOR||CO2RR, Ni-SAs/NOMC achieved Faradaic efficiencies (FEs) 95.4% formate at anode 96.3% CO cathode. Moreover, current density 0.8 A cm-2, demonstrated stable electrolysis up 100 h, with FEs both cathode remaining approximately 90%. situ spectroscopy analyses theoretical calculations identified formation critical intermediate species origin activity improvement, guiding development efficient electrosynthesis valuable chemicals.

Language: Английский

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Design of Single‐Atom Catalysts for E lectrocatalytic Nitrogen Fixation

ChemSusChem, Journal Year: 2023, Volume and Issue: 17(6)

Published: Nov. 21, 2023

Abstract The Electrochemical nitrogen reduction reaction (ENRR) can be used to solve environmental problems as well energy shortage. However, ENRR still faces the of low NH 3 yield and selectivity. selectivity in are affected by multiple factors such electrolytic cells, electrolytes, catalysts, etc. Among these catalysts at core research. Single‐atom (SACs) with intrinsic activity have become an emerging technology for numerous regeneration, including ENRR. In particular, regulating microenvironment SACs (hydrogen evolution inhibition, carrier engineering, metal‐carrier interaction, etc.) break through limitation SACs. Therefore, this Review first introduces basic principles NRR outlines key affecting Then a comprehensive summary is given progress (precious metals, non‐precious non‐metallic) diatomic (DACs) impact microenvironmental regulation on highlighted. Finally, further research directions discussed.

Language: Английский

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Dual single atoms (Pt, Ni) and Pt Ni alloy nanoparticles encapsulated N-doped carbon framework for durable ORR and HER electrocatalysts

Sustainable materials and technologies, Journal Year: 2024, Volume and Issue: 41, P. e01068 - e01068

Published: July 27, 2024

Language: Английский

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