CO<sub>2</sub> turned into a nitrogen doped carbon catalyst for fuel cells and metal–air battery applications

Ratso, Sander; Walke, Peter; Mikli, Valdek; Ločs, Jānis; Šmits, Krišjānis; Vitola, Virgīnija; Šutka, Andris; Kruusenberg, Ivar

doi:10.1039/d1gc00659b

Cited by 27 publications

(15 citation statements)

References 65 publications

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“…The metal–air battery has attracted considerable attention as a promising energy storage system due to its high theoretical energy/power density, reliable safety, and economic viability [ 1 , 2 , 3 , 4 ]. Among them, alkaline Zn–air batteries (ZABs) have been widely studied owing to the advantages of being cost-effective and their high theorical energy density up to 1084 W h kg −1 [ 5 , 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Bifunctional Single-Atom Cobalt Electrocatalysts with Dense Active Sites Prepared via a Silica Xerogel Strategy for Rechargeable Zinc–Air Batteries

Wang

Peng

et al. 2022

Nanomaterials

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The N-doped cobalt-based (Co) bifunctional single atom catalyst (SAC) has emerged as one of the most promising candidates to substitute noble metal-based catalysts for highly efficient bifunctionality. Herein, a facile silica xerogel strategy is elaborately designed to synthesize uniformly dispersed and dense Co-Nx active sites on N-doped highly porous carbon networks (Co-N-C SAC) using economic biomass materials. This strategy promotes the generation of massive mesopores and micropores for substantially improving the formation of Co-Nx moieties and unique network architecture. The Co-N-C SAC electrocatalysts exhibit an excellent bifunctional activity with a potential gap (ΔE) of 0.81 V in alkaline medias, outperforming those of the most highly active bifunctional electrocatalysts. On top of that, Co-N-C SAC also possesses outstanding performance in ZABs with superior power density/specific capacity. This proposed synthetic method will provide a new inspiration for fabricating various high-content SACs for varied applications.

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Section: Introductionmentioning

confidence: 99%

Bifunctional Single-Atom Cobalt Electrocatalysts with Dense Active Sites Prepared via a Silica Xerogel Strategy for Rechargeable Zinc–Air Batteries

Wang

Peng

et al. 2022

Nanomaterials

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“…The carbon is synthesized from CO 2 using the molten salt CO 2 capture and electrochemical transformation (MSCC-ET) method [3,30] which Ratso et al has previously used to synthesize CO 2derived catalyst materials [31][32][33][34] . The method is based on capturing CO 2 into molten carbonate salts, where the CO 3 2is in equilibrium with CO 2 in the surrounding atmosphere:…”

Section: Carbon Synthesismentioning

confidence: 99%

A MnO_x–graphitic carbon composite from CO₂ for sustainable Li-ion battery anodes

et al. 2022

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“…Some people have even proposed a very active direct synthesis of HER catalysts with Ni and N co-doping from CO 2 . A clean transition from a carbon-based economy to a hydrogen-based economy is achieved by comparing the physical qualities and electrocatalytic activities of carbon compounds generated from CO 2 [ 128 , 129 ].…”

Section: Progress In Catalysts For the Hermentioning

confidence: 99%

Recent Advances Regarding Precious Metal-Based Electrocatalysts for Acidic Water Splitting

Peng¹,

Liao

Ye³

et al. 2022

Nanomaterials

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Electrochemical water splitting has wide applicability in preparing high-density green energy. The Proton exchange membrane (PEM) water electrolysis system is a promising technique for the generation of hydrogen due to its high electrolytic efficiency, safety and reliability, compactness, and quick response to renewable energy sources. However, the instability of catalysts for electrochemical water splitting under operating conditions limits their practical applications. Until now, only precious metal-based materials have met the requirements for rigorous long-term stability and high catalytic activity under acid conditions. In this review, the recent progress made in this regard is presented and analyzed to clarify the role of precious metals in the promotion of the electrolytic decomposition of water. Reducing precious metal loading, enhancing catalytic activity, and improving catalytic lifetime are crucial directions for developing a new generation of PEM water electrolysis catalysts. A summary of the synthesis of high-performance catalysts based on precious metals and an analysis of the factors affecting catalytic performance were derived from a recent investigation. Finally, we present the remaining challenges and future perspectives as guidelines for practical use.

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CO₂ turned into a nitrogen doped carbon catalyst for fuel cells and metal–air battery applications

Abstract: Carbon dioxide is turned into a promising metal-free catalyst for fuel cells via molten salt electrolysis.

Cited by 27 publications

References 65 publications

Bifunctional Single-Atom Cobalt Electrocatalysts with Dense Active Sites Prepared via a Silica Xerogel Strategy for Rechargeable Zinc–Air Batteries

Bifunctional Single-Atom Cobalt Electrocatalysts with Dense Active Sites Prepared via a Silica Xerogel Strategy for Rechargeable Zinc–Air Batteries

A MnO_x–graphitic carbon composite from CO₂ for sustainable Li-ion battery anodes

Recent Advances Regarding Precious Metal-Based Electrocatalysts for Acidic Water Splitting

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CO2 turned into a nitrogen doped carbon catalyst for fuel cells and metal–air battery applications

Abstract: Carbon dioxide is turned into a promising metal-free catalyst for fuel cells via molten salt electrolysis.

Cited by 27 publications

References 65 publications

Bifunctional Single-Atom Cobalt Electrocatalysts with Dense Active Sites Prepared via a Silica Xerogel Strategy for Rechargeable Zinc–Air Batteries

Bifunctional Single-Atom Cobalt Electrocatalysts with Dense Active Sites Prepared via a Silica Xerogel Strategy for Rechargeable Zinc–Air Batteries

A MnOx–graphitic carbon composite from CO2 for sustainable Li-ion battery anodes

Recent Advances Regarding Precious Metal-Based Electrocatalysts for Acidic Water Splitting

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CO₂ turned into a nitrogen doped carbon catalyst for fuel cells and metal–air battery applications

A MnO_x–graphitic carbon composite from CO₂ for sustainable Li-ion battery anodes