Atomic Engineering of 3D Self‐Supported Bifunctional Oxygen Electrodes for Rechargeable Zinc‐Air Batteries and Fuel Cell Applications DOI
Milan Babu Poudel, Mannix P. Balanay, Prakash Chandra Lohani

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(30)

Published: May 28, 2024

Abstract The oxygen evolution reaction (OER) and reduction (ORR) are cornerstone half reactions involved in many renewable energy technologies. High‐density single‐atom catalysts maximize the atom utilization isolated active sites. Furthermore, introduction of pyri‐N into carbon‐based nanostructures as an electrocatalyst creates abundance Here, innovative strategy is reported based on atomic scale dispersion Co atoms enriched carbon nanotube encapsulated Ni nanoparticles grown 3D electrospun nanofiber nano‐assemblies. Notably, SA Ni‐NCNT/CNF exhibited excellent OER ORR activity terms low overpotentials higher half‐wave potentials. atomically distributed allows maximum exposure sites dominated multidimensional skeleton, synergistic effects with greatly reduced delocalization around metal centers provided ideal environment for interactions intermediates, thus facilitating 4e − pathway, evidenced by DFT calculations. Moreover, Zn‐air batteries using a air cathode high‐power density admirable specific capacity. This studies may provide avenue rational modulation cost‐effective, large‐scale synthesis bifunctional electrocatalysts rechargeable anion exchange membrane fuel cell.

Language: Английский

Dual and Triple Atom Electrocatalysts for Energy Conversion (CO2RR, NRR, ORR, OER, and HER): Synthesis, Characterization, and Activity Evaluation DOI

Adam M. Roth-Zawadzki,

Alexander J. Nielsen, Rikke Egeberg Tankard

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(2), P. 1121 - 1145

Published: Jan. 8, 2024

Dual and triple atom catalysts (DACs TACs) are an emerging field of heterogeneous catalysis research. They share properties with single (SACs), such as maximizing dispersion metals the ability to circumvent traditional scaling relations that limit extended surfaces. DACs TACs additionally provide adjacent sites necessary for certain reaction mechanisms add tunability electronic structure binding energies. are, however, inherently difficult selectively synthesize characterize. Characterization activity evaluation prone misinterpretation, adding confusion already complex field. In this review, we investigate current progress important electrochemical reactions in energy conversion storage. We further discuss future synthesis methods focus on common pitfalls characterization evaluation.

Language: Английский

Citations

43
Advances of carbon nitride based atomically dispersed catalysts from single-atom to dual-atom in advanced oxidation process applications DOI
Jie Deng,

Yuxi Zeng,

Eydhah Almatrafi

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 505, P. 215693 - 215693

Published: Jan. 30, 2024

Language: Английский

Citations

43
Electronic structure regulation of the Fe-based single-atom catalysts for oxygen electrocatalysis DOI
Xiaochen Wang,

Zhiwen Kang,

Dan Wang

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 121, P. 109268 - 109268

Published: Jan. 9, 2024

Language: Английский

Citations

41
Fe, N‐Inducing Interfacial Electron Redistribution in NiCo Spinel on Biomass‐Derived Carbon for Bi‐functional Oxygen Conversion DOI
Yanyan Liu, Limin Zhou, Shuling Liu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(16)

Published: Feb. 26, 2024

Herein, an interfacial electron redistribution is proposed to boost the activity of carbon-supported spinel NiCo

Language: Английский

Citations

37
Atomic Engineering of 3D Self‐Supported Bifunctional Oxygen Electrodes for Rechargeable Zinc‐Air Batteries and Fuel Cell Applications DOI
Milan Babu Poudel, Mannix P. Balanay, Prakash Chandra Lohani

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(30)

Published: May 28, 2024

Abstract The oxygen evolution reaction (OER) and reduction (ORR) are cornerstone half reactions involved in many renewable energy technologies. High‐density single‐atom catalysts maximize the atom utilization isolated active sites. Furthermore, introduction of pyri‐N into carbon‐based nanostructures as an electrocatalyst creates abundance Here, innovative strategy is reported based on atomic scale dispersion Co atoms enriched carbon nanotube encapsulated Ni nanoparticles grown 3D electrospun nanofiber nano‐assemblies. Notably, SA Ni‐NCNT/CNF exhibited excellent OER ORR activity terms low overpotentials higher half‐wave potentials. atomically distributed allows maximum exposure sites dominated multidimensional skeleton, synergistic effects with greatly reduced delocalization around metal centers provided ideal environment for interactions intermediates, thus facilitating 4e − pathway, evidenced by DFT calculations. Moreover, Zn‐air batteries using a air cathode high‐power density admirable specific capacity. This studies may provide avenue rational modulation cost‐effective, large‐scale synthesis bifunctional electrocatalysts rechargeable anion exchange membrane fuel cell.

Language: Английский

Citations

36