Enhanced electrocatalysis performance of amorphous electrolytic carbon from CO2 for oxygen reduction by surface modification in molten salt

Chen, Zhigang; Gu, Yuxing; Du, Keming; Wang, Xu; Xiao, Wei; Mao, Xuhui

doi:10.1016/j.electacta.2017.09.053

Cited by 17 publications

(20 citation statements)

References 51 publications

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“…Influence of temperature, current, cell voltage and gaseous atmosphere have been extensively investigated, and well documented in current literatures [3,57,60] . Except the above mentioned carbon materials, other morphologies such as graphene [40] , ultrathin graphite sheets [18] , quasi-spheres [47] and amorphous carbon [63] synthesized by the molten salt electrolysis are also reported. There is further potential for other carbon materials, with unreported special morphologies, to be electro-synthesized in the molten salts.…”

Section: Solid Core Carbon Nanofibersmentioning

confidence: 99%

Section: Applications Of the Electro-synthesized Carbon Materialsmentioning

confidence: 99%

“…The eletro-catalytic property and heavy metal adsorption ability of the carbon materials obtained by the MSCC-ET process were also investigated [16,63,65] . Wang et al [63] found that electrodeposited carbon was passive for oxygen reduction reaction (ORR). However, after doping with S and Co by molten salt treatment, its catalytic activity for ORR reaction increased significantly, to a performance close to that of the commercial Pt/C catalyst [63] .…”

Section: Applications Of the Electro-synthesized Carbon Materialsmentioning

confidence: 99%

“…Wang et al [63] found that electrodeposited carbon was passive for oxygen reduction reaction (ORR). However, after doping with S and Co by molten salt treatment, its catalytic activity for ORR reaction increased significantly, to a performance close to that of the commercial Pt/C catalyst [63] . Due to a porous structure and high specific surface area, the derived carbon materials by the MSCC-ET process also show a very high adsorption capacity for Cu 2 + , methylene and Cr 6 + in aqueous solution, of 29.9 mg g −1 , 302.5 mg g −1 and 49.5 mg g −1 , respectively [16,65] .…”

Section: Applications Of the Electro-synthesized Carbon Materialsmentioning

confidence: 99%

See 3 more Smart Citations

Capture and electro-splitting of CO2 in molten salts

Weng

Tang

Xiao

2019

Journal of Energy Chemistry

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106

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Section: Solid Core Carbon Nanofibersmentioning

confidence: 99%

Section: Applications Of the Electro-synthesized Carbon Materialsmentioning

confidence: 99%

Section: Applications Of the Electro-synthesized Carbon Materialsmentioning

confidence: 99%

Section: Applications Of the Electro-synthesized Carbon Materialsmentioning

confidence: 99%

See 2 more Smart Citations

Capture and electro-splitting of CO2 in molten salts

Weng

Tang

Xiao

2019

Journal of Energy Chemistry

Self Cite

106

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“…This continuous-operation process is promising for massive preparation of advanced carbon materials for energy applications by the integration of carbon reduction and deep desulfurization from practical waste gas without purification. Additionally, carbons from CO have been tested in other applications 2 as well, such as the oxygen reduction and adsorption material for 82,83 aqueous pollutants Cu(II) ion and methylene blue (MB).…”

Section: Applicationsmentioning

confidence: 99%

Electrolytic Carbons from CO and Their Applications

Peng¹,

Yu²,

Ren³

et al. 2018

ES Energy Environ.

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Tremendous efforts have been paid to tackle our energy crisis and environmental issues. CO as main source for the greenhouse effect, is very 2, abundant in nature and can be used as feedstock to prepare value-added carbon materials via electrochemical reduction. By carefully manipulating electrolysis current density, electrolyte composition, electrode materials and temperature, various functional carbon materials, including carbon nanotubes (CNTs), graphene, graphite, nanodiamonds, etc., could be readily generated with high Faraday Efficiency. Asobtained materials exhibits excellent performances in energy applications like batteries and supercapacitors. Electrochemical reduction of CO 2 provides a promising pathway for CO capture and conversion and creates materials suitable for high energy power/density devices.

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CO₂‐Derived Oxygen‐Rich Carbon with Enhanced Redox Reactions as a Cathode Material for Aqueous Zn‐Ion Batteries

Jing

Wang

et al. 2022

ChemistrySelect

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Aqueous Zn-ion batteries based on carbon cathode materials show high potential in the application of energy storage due to their low cost, high safety and long cycling lifespan, but the low reversible capacity and energy density hinder their practical. Herein, CO 2 -derived oxygen-rich carbons by molten salt electrolysis are proposed as attractive cathode materials with enhanced redox reactions. By optimizing the electrolysis current density at 50 mA cm À 2 , electrolytic carbon featuring honeycomb-like morphology, high specific surface area and O content, as well as abundant defect is realized. Owing to the enhanced electrochemical reactions originating from the oxy-gen-rich functional group in the electrolytic carbon, improved electrochemical Zn storage performance is achieved, showing a high capacity of 257 mAh g À 1 at 0.05 A g À 1 , which is one of the highest values reported, and it preserves good cycling stability after 10000 cycles at 1 A g À 1 . It is revealed that C=O group in electrolytic carbon shows high reactivity and can reversibly storage and release Zn 2 + ions, which is accompanied by the formation and dissolution of Zn x OTf y (OH) 2x-y ⋅nH 2 O layer. This work offers effective strategy to improve the electrochemical performance of carbons by manipulating the surface reaction of carbon for aqueous Zn-ion batteries.

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Enhanced electrocatalysis performance of amorphous electrolytic carbon from CO2 for oxygen reduction by surface modification in molten salt

Cited by 17 publications

References 51 publications

Capture and electro-splitting of CO2 in molten salts

Capture and electro-splitting of CO2 in molten salts

Electrolytic Carbons from CO and Their Applications

CO₂‐Derived Oxygen‐Rich Carbon with Enhanced Redox Reactions as a Cathode Material for Aqueous Zn‐Ion Batteries

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Enhanced electrocatalysis performance of amorphous electrolytic carbon from CO2 for oxygen reduction by surface modification in molten salt

Cited by 17 publications

References 51 publications

Capture and electro-splitting of CO2 in molten salts

Capture and electro-splitting of CO2 in molten salts

Electrolytic Carbons from CO and Their Applications

CO2‐Derived Oxygen‐Rich Carbon with Enhanced Redox Reactions as a Cathode Material for Aqueous Zn‐Ion Batteries

Contact Info

Product

Resources

About

CO₂‐Derived Oxygen‐Rich Carbon with Enhanced Redox Reactions as a Cathode Material for Aqueous Zn‐Ion Batteries