Enhanced catalytic activity of nanoporous Au for the efficient electrochemical reduction of carbon dioxide

Hossain, M. Nur; Liu, Zhonggang; Wen, Jiali; Chen, Aicheng

doi:10.1016/j.apcatb.2018.05.053

Cited by 61 publications

(52 citation statements)

References 34 publications

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“…The Ag 3d 5/2 and Ag 3d 5/2 peaks appeared at ∼368.15 and ∼374.13 eV, respectively, which could be attributed to Ag 0 , indicating that the Ag I ion in AgNO 3 was successfully reduced by Zn [48] . As seen in Figure 3 C, Au 4f 7/2 and Au 4f 5/2 peaks were observed at 84.18 and 87.88 eV, respectively, proving the formation of Au 0 by the galvanic reaction between Zn and HAuCl 4 [8, 49] . The crystalline phases of the synthesized NDs were determined via XRD analysis, as shown in Figure S4.…”

Section: Resultsmentioning

confidence: 82%

“…Electrochemical reduction of CO 2 , associated with the development of catalysts, is a crucial area of research and development because it is environmentally friendly, clean, modular, tunable, controllable and scalable compared to other existing technologies. However, the challenge is finding a suitable catalyst for CO 2 reduction to achieve a cost‐effective process with high efficiency and selectivity [7–11] …”

Section: Introductionmentioning

confidence: 99%

“…However,t he challenge is finding as uitablec atalyst for CO 2 reduction to achieve ac ost-effective process with high efficiency and selectivity. [7][8][9][10][11] Metal-basede lectrocatalysts such as Zn, Pd, and Ga produce CO as the primary product, whereas Co, Pb, Hg, In, Sn, Cd, Tl, and Bi produce formate as the majorp roduct from the CO 2 reductioni na queous solutions. [12][13][14] Interestingly,N i, Fe, Pt, and Ti,a re found to be mostly inactive towards the electrochemical reduction of CO 2 ,a lthough H 2 Oe lectrolysiss till occurs.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical Reduction of CO₂ at Coinage Metal Nanodendrites in Aqueous Ethanolamine

Hossain

Ahmad

Silva

et al. 2020

Chemistry A European J

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Electrocatalytic reduction of CO 2 into usable chemicals is ap romising path to addressc limate changea nd energy challenges. Herein, we demonstrate the synthesis of unique coinagem etal (Cu, Ag, and Au) nanodendrites (NDs) via af acile galvanic replacement reaction(GRR), which can be effective electrocatalysts for the reductiono fC O 2 in an ethanolamine(EA) solution. Each metal ND surface was directly grown on glassy-carbon(GC) substrates from am ixture of Zn dust and the respective precursors olution. The electrocatalytic activities of the synthesized ND surfaces were optimized for CO 2 reduction in EA solution by varying their composition. It was determined that a0 .05 mol fraction of EA exhibited the highestc atalytic activity for all metal NDs. Linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) techniquess howed that metal-ND electrodes possessed higher current densities, lowero nset potentials and lower charge-transfer resistances for CO 2 reduction than their smooth polycrystalline electrode counterparts, indicating improved CO 2 reduction catalytic activity.I tw as determined, using FTIR and NMR spectroscopy, that formate wasp roduced as ar esult of the CO 2 reduction.

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Section: Resultsmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrochemical Reduction of CO₂ at Coinage Metal Nanodendrites in Aqueous Ethanolamine

Hossain

Ahmad

Silva

et al. 2020

Chemistry A European J

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“…Nanostructured catalysts are designed to achieve high performance by enlarging the surface area to volume ratio, increasing the number of active sites, utilizing the mass transport effect, inducing effective geometric structure favorable to reaction, and so forth . To reduce the unnecessary trial and error, and to maximize the structural advantage, valid design may be inspired by previous empirical studies.…”

Section: Noble Metal Based Electrocatalystsmentioning

confidence: 99%

Progress in development of electrocatalyst for CO₂ conversion to selective CO production

et al. 2019

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The conversion of carbon dioxide (CO2) to valuable fuels and chemicals offers a new pathway for sustainable and clean carbon fixation. Recently, the focus has been on electrochemical CO2 reduction on heterogeneous electrode catalysts, leading to remarkable achievements in the reaction performance. To date, CO2 to carbon monoxide (CO) conversion is considered as the most promising candidate reaction for the industrial market, owing to its high efficiency and reasonable technoeconomic feasibility. Moreover, CO has been proposed as a key intermediate species for further reduced hydrocarbons, which can pave the way for various fuel production. This study sets out to describe recent progress on the electrochemical CO2 reduction to CO in a heterogeneously catalyzed system. The review includes understanding of the catalytic material employed and engineering strategies implemented by adjusting the binding energy of key adsorbates. These material design approaches, such as nanostructuring, alloying, doping, and so forth, have pioneered breakouts in the intrinsic catalytic nature of transition metal elements. Moreover, recent advances in systematic design are summarized, with focus on practical industrial applications. Finally, perspectives on the design of electrocatalyst materials for CO production by electrochemical CO2 reduction are presented.

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“…In recent years, there have been significant efforts to enhance the selectivity and reactivity of electrocatalysts to engineer better catalytic performance and increased stability for the electrochemical conversion of CO 2 [ 63 , 64 , 65 , 66 , 67 , 68 , 69 ]. Another strategy to improve the selectivity and reactivity is modulation of electrocatalyst morphologies to increase active sites, such as preferential faceting, grain boundaries, and tuning pore shape and size [ 35 , 36 , 39 , 47 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 ]. Most recently, it has been demonstrated that C 2+ selectivity could be enhanced by tuning CO 2 mass transport via the catalyst layer structure, feed concentration, and flow rate of CO 2 in gas-diffusion electrode electrolyzers.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Cathodes for Electrochemical Reduction of CO2: From Macro- to Nano-Engineering

et al. 2020

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Rising anthropogenic CO2 emissions and their climate warming effects have triggered a global response in research and development to reduce the emissions of this harmful greenhouse gas. The use of CO2 as a feedstock for the production of value-added fuels and chemicals is a promising pathway for development of renewable energy storage and reduction of carbon emissions. Electrochemical CO2 conversion offers a promising route for value-added products. Considerable challenges still remain, limiting this technology for industrial deployment. This work reviews the latest developments in experimental and modeling studies of three-dimensional cathodes towards high-performance electrochemical reduction of CO2. The fabrication–microstructure–performance relationships of electrodes are examined from the macro- to nanoscale. Furthermore, future challenges, perspectives and recommendations for high-performance cathodes are also presented.

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Enhanced catalytic activity of nanoporous Au for the efficient electrochemical reduction of carbon dioxide

Cited by 61 publications

References 34 publications

Electrochemical Reduction of CO₂ at Coinage Metal Nanodendrites in Aqueous Ethanolamine

Electrochemical Reduction of CO₂ at Coinage Metal Nanodendrites in Aqueous Ethanolamine

Progress in development of electrocatalyst for CO₂ conversion to selective CO production

Three-Dimensional Cathodes for Electrochemical Reduction of CO2: From Macro- to Nano-Engineering

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Enhanced catalytic activity of nanoporous Au for the efficient electrochemical reduction of carbon dioxide

Cited by 61 publications

References 34 publications

Electrochemical Reduction of CO2 at Coinage Metal Nanodendrites in Aqueous Ethanolamine

Electrochemical Reduction of CO2 at Coinage Metal Nanodendrites in Aqueous Ethanolamine

Progress in development of electrocatalyst for CO2 conversion to selective CO production

Three-Dimensional Cathodes for Electrochemical Reduction of CO2: From Macro- to Nano-Engineering

Contact Info

Product

Resources

About

Electrochemical Reduction of CO₂ at Coinage Metal Nanodendrites in Aqueous Ethanolamine

Electrochemical Reduction of CO₂ at Coinage Metal Nanodendrites in Aqueous Ethanolamine

Progress in development of electrocatalyst for CO₂ conversion to selective CO production