Surface structure and composition effects on electrochemical reduction of carbon dioxide

Zhu, Shangqian; Shao, Minhua

doi:10.1007/s10008-015-2884-x

Cited by 36 publications

(31 citation statements)

References 77 publications

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“…In addition, the onset potential of CO 2 reduction on porous Ag electrode was about 0.15 V less in comparison with the Ag foil electrode. Both the lower overpotential and increased CO partial current density could be attributed to the large active surface area of the porous electrode [11]. Furthermore, it is presumed that the higher activity may be due to the greater stabilization of CO 2 À intermediates on the highly roughed surface, resulting in smaller overpotential needed to overcome the thermodynamic barrier.…”

Section: Cyclic Voltammetry Measurementsmentioning

confidence: 98%

“…In addition, nanostructured electrocatalysts have been shown to improve catalytic stability. Moreover, a large portion of low-coordinated sites on nanostructured surface make the catalytic behavior different from flat surface in corresponding bulk metals [10,11]. The unique properties have shown in oxygen reduction reaction (ORR) [12], hydrogen evolution reaction (HER) [13] and oxygen evolution reaction (OER) [14].…”

Section: Introductionmentioning

confidence: 99%

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Enhanced CO selectivity and stability for electrocatalytic reduction of CO 2 on electrodeposited nanostructured porous Ag electrode

Wang

Han

Zhang

et al. 2016

Journal of CO2 Utilization

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Section: Cyclic Voltammetry Measurementsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Enhanced CO selectivity and stability for electrocatalytic reduction of CO 2 on electrodeposited nanostructured porous Ag electrode

Wang

Han

Zhang

et al. 2016

Journal of CO2 Utilization

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“…The catalytic behaviors of such nanolayers can be drastically changed due to the effects of the lattice strain and layer-substrate electron interaction [45]. Reske et al investigated the performance of Cu overlayers with different thicknesses ranging from 1 monolayer to 15 nm supported on a polycrystalline Pt substrate [62].…”

Section: Metal Catalysts (Cu and Zn)mentioning

confidence: 99%

“…Although several review articles related to CO 2 reduction have been published, nonprecious metal catalysts have not been systematically discussed [39][40][41][42][43][44][45]. Less expensive and environmentally friendly materials such as Cu, Zn, Sn, Bi, Co, carbons, and organic frameworks have demonstrated promise for the reduction of CO 2 to hydrocarbons, formic acid, and CO.…”

Section: Introductionmentioning

confidence: 97%

Nanostructured nonprecious metal catalysts for electrochemical reduction of carbon dioxide

2016

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a b s t r a c tElectrochemical reduction of carbon dioxide powered by renewable electricity represents a promising solution for energy and environmental sustainability. To enable this technology, active and selective catalysts must be developed. Noble metals exhibit excellent activity but are hampered by their low abundance and high cost. Thus, searching for efficient nonprecious metal catalysts for practical applications is vital. In this review, the recent progress on nanostructured nonprecious metal catalysts for electrochemical reduction of carbon dioxide is summarized. These catalysts are classified into five categories: metals, partially oxidized metals, metal oxides and sulfides, doped carbons, and organic frameworks. The areas of focus are material synthesis, structure and components, catalytic performance, and reaction mechanisms. Several important factors that affect activity, such as particle size, interface strain, grain boundary, crystal facet, oxidation state, heteroatom configuration, and organic hybrid, are discussed. Finally, some perspectives are provided for future developments and directions of the synthesis and functionalization of nonprecious metal catalysts, with emphasis on the potential advantages of nanoporous materials for carbon dioxide reduction.

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“…Due to existence of two strong C=O bonds in the CO 2 molecule, its electroreduction requires high overpotentials, and the low reaction efficiency still remains fundamental problem limiting practical applications. [1][2][3] During recent years, various catalysts, including noble and non-noble transition metals, as well as their numerous coordination compounds, have been considered as catalysts for CO 2 electroreduction. [4][5][6][7][8][9][10] It has been demonstrated that selectivity of the process depends largely on the activating adsorptive (CO 2 ) phenomena and the affinity of catalytic centers to adsorbed carbon monoxide intermediate.…”

mentioning

confidence: 99%

Carbon Dioxide Electroreduction at Highly Porous Nitrogen and Sulfur Co-Doped Iron-Containing Heterogeneous Carbon Gel

Dembińska

Kiciński

Januszewska

et al. 2017

J. Electrochem. Soc.

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The functionalized carbon nanostructure, nitrogen and sulfur co-doped iron-containing highly porous carbon gel (obtained via carbonization of corresponding organic gel) is considered here as a non-precious metal catalyst for the electroreduction of carbon dioxide in neutral solution (potassium bicarbonate at pH = 6.8). Various electrochemical measurements (performed in distinct modes and under different conditions) have been utilized to comment about the catalyst performance and the reaction mechanism, in particular about the reaction products and the relative contribution from hydrogen evolution. At low overpotentials, the carbon dioxide reduction is favored over the hydrogen evolution reaction. Combination of conventional (stationary) stripping-type and hydrodynamic (rotating ring-disk electrode) voltammetric approaches has been demonstrated to function as an unique electroanalytical tool here. The CO 2 -reduction products can be identified as adsorbates (oxidative stripping voltammetry) or monitored continuously (electrooxidation) at the Pt ring electrode. Finally, the results of both electrochemical diagnostic and parallel gas chromatographic analytical measurements are consistent with the view that, in the examined range of the potentials, CO is the main CO 2 -reduction product. The electrochemical reduction of carbon dioxide (CO 2 ) permits, in principle, selective generation of carbon-based fuels (or syngas) and, indirectly, lowering population of one of green-house gases in the atmosphere. Due to existence of two strong C=O bonds in the CO 2 molecule, its electroreduction requires high overpotentials, and the low reaction efficiency still remains fundamental problem limiting practical applications. 1-3During recent years, various catalysts, including noble and non-noble transition metals, as well as their numerous coordination compounds, have been considered as catalysts for CO 2 electroreduction. [4][5][6][7][8][9][10] It has been demonstrated that selectivity of the process depends largely on the activating adsorptive (CO 2 ) phenomena and the affinity of catalytic centers to adsorbed carbon monoxide intermediate. 11 Depending on the strength of adsorption and according to the Sabatier principle, CO may be further protonated or hydrogenated to CHO adsorbate. This step is often considered as the rate-determining one during the hydrocarbon formation.12 It should be noted here that, for example, copper is capable of successfully catalyzing electroreduction of CO 2 to multicarbon products, 13-15 palladium induces the reaction mainly to CO and H 2 and only small amounts of formate. 2,[16][17][18][19] Another important practical issue is related to the need of lowering costs of catalysts by substituting the noble metals with inexpensive abundant elements. There has been growing interest in catalysts based on nanostructured carbons that include the metal-free Ndoped systems and the metal-containing carbons. [20][21][22][23][24][25][26] For example, the biomimetic centers containing metallic moieties in the vi...

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Surface structure and composition effects on electrochemical reduction of carbon dioxide

Cited by 36 publications

References 77 publications

Enhanced CO selectivity and stability for electrocatalytic reduction of CO 2 on electrodeposited nanostructured porous Ag electrode

Enhanced CO selectivity and stability for electrocatalytic reduction of CO 2 on electrodeposited nanostructured porous Ag electrode

Nanostructured nonprecious metal catalysts for electrochemical reduction of carbon dioxide

Carbon Dioxide Electroreduction at Highly Porous Nitrogen and Sulfur Co-Doped Iron-Containing Heterogeneous Carbon Gel

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