Silk fibroin-derived carbon aerogels embedded with copper nanoparticles for efficient electrocatalytic CO2-to-CO conversion

Gong, Shanhe; Xiao, Xinxin; Wang, Wenbo; Sam, Daniel Kobina; Lu, Runqing; Xu, Yuanguo; Li, Jun; Wu, Chunxia; Lv, Xiaomeng

doi:10.1016/j.jcis.2021.05.054

Cited by 28 publications

(14 citation statements)

References 70 publications

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“…This fast electron transfer process is further demonstrated by the Nyquist diagram (Figure 6e), where the high‐frequency region of the Nyquist diagram for FN‐NA‐CLDH@RGO‐100 s shows smaller semicircles, indicating faster charge/proton transfer kinetics with lower interfacial charge transfer resistance. [ 62–65 ]…”

Section: Characteristic Analysismentioning

confidence: 99%

“…This fast electron transfer process is further demonstrated by the Nyquist diagram (Figure 6e), where the high-frequency region of the Nyquist diagram for FN-NA-CLDH@RGO-100 s shows smaller semicircles, indicating faster charge/proton transfer kinetics with lower interfacial charge transfer resistance. [62][63][64][65] The electrochemical active area (ECSA) of each electrode is systematically investigated in Figure 6f using the bilayer capacitance (C dl ) method. The calculated C dl values for the NA-CLDH-100 s electrode and the NA-CLDH@RGO-100 s electrode were 32.7 μF• and 35.4 μF cm À2 , respectively.…”

Section: Characteristic Analysismentioning

confidence: 99%

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F and N Codoped Bimetallic Oxide‐Reduced Graphene Oxide Composite Electrode FN‐NA‐CLDH@RGO for Electrocatalytic Reduction of CO₂ to CO

Liu

Zhang

2023

Energy Tech

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Currently, there is considerable interest in developing cost‐effective, high‐performance electrocatalysts for electrocatalytic carbon dioxide reduction (ECR). Due to their low electrical conductivity and relatively weak catalytic activity, layered bimetallic oxides have rarely been applied in ECR studies. However, they contain a large specific surface area and are rich in Lewis bases, which are favorable for CO2 adsorption. Herein, F and N co‐doped layered bimetallic oxide and reduced graphene oxide composites with precisely controlled morphology are deposited directly on carbon paper using a simple constant current electrodeposition method (FN‐NA‐CLDH@RGO‐X, X denotes the deposition time). Notably, the doping of F helps to suppress the hydrogen precipitation reaction, while the doping of N enhances the adsorption and conversion of CO2. The CO2 reduction study in an H‐type electrolytic cell shows that the FN‐NA‐CLDH@RGO‐100 s electrode‐reduced CO2 to CO at an applied potential of −1.1 V with an efficiency of 87.9% (compared to the reversible hydrogen electrode). In addition, the doping of F favors the reduction of overpotential and the improvement of catalytic activity, while the synergistic effect of F and N enhances the catalytic activity without significant decay in more than 6 h of continuous testing.

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Section: Characteristic Analysismentioning

confidence: 99%

Section: Characteristic Analysismentioning

confidence: 99%

F and N Codoped Bimetallic Oxide‐Reduced Graphene Oxide Composite Electrode FN‐NA‐CLDH@RGO for Electrocatalytic Reduction of CO₂ to CO

Liu

Zhang

2023

Energy Tech

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“…The transition metal supported on CA materials has also been developed as a variety of catalysts with high activity and selectivity for CO 2 RR. Lv et al [ 91 ] designed Cu Zn-incorporated silk fibroin biomass CAs for electrocatalytic CO 2 RR ( Figure 5 a). Zn nitrate was introduced as a pore former to optimize the pore structure further.…”

Section: Applications Of Cas In Electrocatalysismentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Carbon Aerogels as Electrocatalysts for Sustainable Energy Applications: Recent Developments and Prospects

Zhang

Xuan

et al. 2022

Nanomaterials

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Carbon aerogel (CA) based materials have multiple advantages, including high porosity, tunable molecular structures, and environmental compatibility. Increasing interest, which has focused on CAs as electrocatalysts for sustainable applications including oxygen reduction reaction (ORR), oxygen evolution reaction (OER), hydrogen evolution reaction (HER), and CO2 reduction reaction (CO2RR) has recently been raised. However, a systematic review covering the most recent progress to boost CA-based electrocatalysts for ORR/OER/HER/CO2RR is now absent. To eliminate the gap, this critical review provides a timely and comprehensive summarization of the applications, synthesis methods, and principles. Furthermore, prospects for emerging synthesis, screening, and construction methods are outlined.

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“…Although few carbonaceous supports, such as carbon aerogel 22,34 , graphene 31,38 , and carbon nanotubes 39 , have been used previously, their syntheses require multiple steps and is often expensive. Therefore, new carbonaceous supports derived from biomass are being explored 40,41 . In this regard, the findings of this study will contribute to the production of a carbon structure derived from industrial waste (black liquor) using a sustainable method.…”

Section: Introductionmentioning

confidence: 99%

Bio-based Carbon Electrochemically Decorated with Cu Nanoparticles: Green Synthesis and Electrochemical Performance

Fonseca¹,

Araujo²,

Pinheiro³

et al. 2022

Mat. Res.

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This study aimed to synthesize a composite material composed of bio-based, porous carbon matrix and Cu nanoparticles through a simple, low-cost, and environmentally friendly method. Concentrated Kraft black liquor was used as a carbon precursor, and Cu nanoparticles were homogeneously deposited on the carbon matrix using electrochemical deposition. The textural properties determined using N 2 isotherms indicated increased surface area of a carbon matrix with a micro-mesoporous structure. Voltammetric tests demonstrated that the composite exhibited catalytic properties for electrochemical CO 2 reduction. Compared to the bio-based, porous carbon sample (C matrix), the bio-based carbon electrode electrochemically decorated with Cu nanoparticles (C-Cu composite) exhibited increased current values of approximately 2.4 times, a potential shift of approximately 90 mV, and an onset potential of −1.02 V, under CO 2 saturation.

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Silk fibroin-derived carbon aerogels embedded with copper nanoparticles for efficient electrocatalytic CO2-to-CO conversion

Cited by 28 publications

References 70 publications

F and N Codoped Bimetallic Oxide‐Reduced Graphene Oxide Composite Electrode FN‐NA‐CLDH@RGO for Electrocatalytic Reduction of CO₂ to CO

F and N Codoped Bimetallic Oxide‐Reduced Graphene Oxide Composite Electrode FN‐NA‐CLDH@RGO for Electrocatalytic Reduction of CO₂ to CO

Carbon Aerogels as Electrocatalysts for Sustainable Energy Applications: Recent Developments and Prospects

Bio-based Carbon Electrochemically Decorated with Cu Nanoparticles: Green Synthesis and Electrochemical Performance

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Silk fibroin-derived carbon aerogels embedded with copper nanoparticles for efficient electrocatalytic CO2-to-CO conversion

Cited by 28 publications

References 70 publications

F and N Codoped Bimetallic Oxide‐Reduced Graphene Oxide Composite Electrode FN‐NA‐CLDH@RGO for Electrocatalytic Reduction of CO2 to CO

F and N Codoped Bimetallic Oxide‐Reduced Graphene Oxide Composite Electrode FN‐NA‐CLDH@RGO for Electrocatalytic Reduction of CO2 to CO

Carbon Aerogels as Electrocatalysts for Sustainable Energy Applications: Recent Developments and Prospects

Bio-based Carbon Electrochemically Decorated with Cu Nanoparticles: Green Synthesis and Electrochemical Performance

Contact Info

Product

Resources

About

F and N Codoped Bimetallic Oxide‐Reduced Graphene Oxide Composite Electrode FN‐NA‐CLDH@RGO for Electrocatalytic Reduction of CO₂ to CO

F and N Codoped Bimetallic Oxide‐Reduced Graphene Oxide Composite Electrode FN‐NA‐CLDH@RGO for Electrocatalytic Reduction of CO₂ to CO