Morphology-/microstructure-regulated nickel/nitrogen-co-doped monodisperse hollow carbon spheres for controlled electrochemical CO2 reduction to syngas DOI Creative Commons
Yali Yang, Muhammad Umer, Zhenyu Sun

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 689, P. 137242 - 137242

Published: March 4, 2025

Monodisperse carbon materials have attracted increasing attention in the fields of catalysis, adsorption, and energy storage. However, preparation monodisperse microstructure-controlled spheres still faces tremendous challenges due to complexity involved polymerization/carbonization processes difficulty controlling high monodispersity regulating microstructures, which are vital for ensuring a uniform packing, determining consistent physical chemical properties targeting applications. Here, we report an approach address these issues by co-doping nickel nitrogen into aminophenol-formaldehyde resin (APFR) polymer framework. Such Ni,N-co-doping regulates morphology microstructure obtained spheres. The study elucidates how nitrate ammonia affect APFR retention shape after carbonization. also unveils morphological microstructural evolution from smooth rough surface, solid hollow structure, micropore hierarchical as well changes sphere size surface area. Moreover, synergistic transformation mechanism Ni2+ coordination NH3 regulation is inferred. resulting optimized Ni,N-co-doped used catalyst electrochemical CO2 reduction syngas. results show that highly dispersed Ni particles embedded N-doped display performance CO, with tunable CO/H2 ratio 0.35-3.48 applying potential range -1.1 -0.8 V (vs. RHE), long-term stability CO selectivity. This work describes promising candidate methanol conversion, syngas fermentation Fischer-Tropsch reactions

Language: Английский

Morphology-/microstructure-regulated nickel/nitrogen-co-doped monodisperse hollow carbon spheres for controlled electrochemical CO2 reduction to syngas DOI Creative Commons
Yali Yang, Muhammad Umer, Zhenyu Sun

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 689, P. 137242 - 137242

Published: March 4, 2025

Monodisperse carbon materials have attracted increasing attention in the fields of catalysis, adsorption, and energy storage. However, preparation monodisperse microstructure-controlled spheres still faces tremendous challenges due to complexity involved polymerization/carbonization processes difficulty controlling high monodispersity regulating microstructures, which are vital for ensuring a uniform packing, determining consistent physical chemical properties targeting applications. Here, we report an approach address these issues by co-doping nickel nitrogen into aminophenol-formaldehyde resin (APFR) polymer framework. Such Ni,N-co-doping regulates morphology microstructure obtained spheres. The study elucidates how nitrate ammonia affect APFR retention shape after carbonization. also unveils morphological microstructural evolution from smooth rough surface, solid hollow structure, micropore hierarchical as well changes sphere size surface area. Moreover, synergistic transformation mechanism Ni2+ coordination NH3 regulation is inferred. resulting optimized Ni,N-co-doped used catalyst electrochemical CO2 reduction syngas. results show that highly dispersed Ni particles embedded N-doped display performance CO, with tunable CO/H2 ratio 0.35-3.48 applying potential range -1.1 -0.8 V (vs. RHE), long-term stability CO selectivity. This work describes promising candidate methanol conversion, syngas fermentation Fischer-Tropsch reactions

Language: Английский

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