Defect engineering in earth-abundant electrocatalysts for CO<sub>2</sub> and N<sub>2</sub> reduction

Wang, Qichen; Lei, Yongpeng; Wang, Dingsheng; Li, Yadong

doi:10.1039/c8ee03781g

Cited by 505 publications

(283 citation statements)

References 254 publications

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“…Over the past decades, as the foreseen aggravated status due to population growth and forthcoming spiraling depletion of finite amount of fossil fuel, researchers have been devoted to exploiting various other alternative energies, e. g., solar energy, hydroelectric, geothermal, wind and biofuels. [129] But these methods exist either storage challenge or environment pollute Figure 17. Volcano plots for NiSe 2 doped with various single-atom metals.…”

Section: Discussionmentioning

confidence: 99%

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

et al. 2019

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Electrolysis of water is regarded as an attractive and feasible way for producing hydrogen. So far, various non‐noble metal nanomaterials have been reported as excellent electrocatalysts for hydrogen evolution reaction. Especially, due to the low cost, earth‐abundance and tunable properties, transition metal selenides with different compositions, sizes and structures have been explored broadly as efficient catalysts with the relatively high activities, high stabilities and high efficiencies in full pH range of electrolyte for electrochemical hydrogen evolution reaction. Thus, in this Minireview, after introducing several commonly used electrochemical terms about hydrogen evolution reaction, we mainly focus on various kinds of the transition metal selenides that have been documented as electrocatalysts for hydrogen evolution reaction. Particularly, the merits and demerits of transition metal selenides for hydrogen evolution reaction are systematically discussed. Moreover, we also analyze the encountered challenges and present an outlook for the rapid development of transition metal selenides. We hope this Minireview can bring some fundamental understanding for the readers interested in the transition metal selenides and hydrogen evolution reaction.

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Section: Discussionmentioning

confidence: 99%

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

et al. 2019

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Section: Can Catalyst Design Alone Make Nrr a Competitive Processmentioning

confidence: 99%

“…Introducing vacancies or defects into electrocatalysts can result in physicochemical properties which are suitable to enhance their electrocatalytic performance due to the modulated electronic structure. [56] For instance, Chade Lv et al synthesized Bi 4 V 2 O 11 /CeO 2 hybrid catalysts (Figure 9a), into which Bi 4 V 2 O 11 was amorphous with rich defects and oxygen vacancies (OVs), while CeO 2 can also help to promote charge transfer. [27b] Thus, this unique structure showed remarkable electrocatalytic NRR performance with a FE of 10.16 % and NH 3 production rate of 23.21 mg h À 1 mg À 1 cat.…”

Section: Vacancies or Defectsmentioning

confidence: 99%

Overcoming Chemical Inertness under Ambient Conditions: A Critical View on Recent Developments in Ammonia Synthesis via Electrochemical N₂ Reduction by Asking Five Questions

Qin

Oschatz

2020

ChemElectroChem

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Ammonia (NH3) synthesis by the electrochemical N2 reduction reaction (NRR) is increasingly studied and proposed as an alternative process to overcome the disadvantages of Haber‐Bosch synthesis by a more energy‐efficient, carbon‐free, delocalized, and sustainable process. An ever‐increasing number of scientists are working on the improvement of the faradaic efficiency (FE) and NH3 production rate by developing novel catalysts, electrolyte concepts, and/or by contributing theoretical studies. The present Minireview provides a critical view on the interplay of different crucial aspects in NRR from the electrolyte, over the mechanism of catalytic activation of N2, to the full electrochemical cell. Five critical questions are asked, discussed, and answered, each coupled with a summary of recent developments in the respective field. This article is not supposed to be a complete summary of recent research about NRR but provides a rather critical personal view on the field. It is the major aim to give an overview over crucial influences on different length scales to shine light on the sweet spots into which room for revolutionary instead of incremental improvements may exist.

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“…However, due to the thermodynamically stable CO bonding in CO 2 , a high energy barrier is required for activation and electrocatalytic conversion of CO 2 . Moreover, more importantly, the competing hydrogen evolution reaction (HER) is more kinetically favored than the CO 2 electrocatalytic reduction . As these reasons, it is necessary to develop a highly active and robust electrocatalyst to advance in the direction of industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Engineering Electronic Structure of Stannous Sulfide by Amino‐Functionalized Carbon: Toward Efficient Electrocatalytic Reduction of CO₂ to Formate

Chen

Zhang

Jiao

et al. 2020

Advanced Energy Materials

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Engineering electronic structure to enhance the binding energies of reaction intermediates in order to achieve a high partial current density can lead to increased yield of target products. Herein, amino‐functionalized carbon is used to regulate the electronic structure of tin‐based catalysts to enhance activity of CO2 electroreduction. The hollow nanotubes composed of SnS (stannous sulfide) nanosheets are modified with amino‐functionalized carbon layers, achieving a highest formate Faraday efficiency of 92.6% and a remarkable formate partial current density of 41.1 mA cm−2 (a total current density of 52.1 mA cm−2) at a moderate overpotential of 0.9 V versus reversible hydrogen electrode, as well as a good stability. Density functional theory calculations demonstrate that the superior activity is attributed to the synergistic effect among SnS and Aminated‐C in increasing the adsorption energies of the key intermediates and accelerating the charge transfer rate.

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Defect engineering in earth-abundant electrocatalysts for CO₂ and N₂ reduction

Abstract: The electrocatalytic CO2 reduction reaction (CRR) and N2 reduction reaction (NRR), which convert inert small molecules into high-value products under mild conditions, have received much research attention.

Cited by 505 publications

References 254 publications

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

Overcoming Chemical Inertness under Ambient Conditions: A Critical View on Recent Developments in Ammonia Synthesis via Electrochemical N₂ Reduction by Asking Five Questions

Engineering Electronic Structure of Stannous Sulfide by Amino‐Functionalized Carbon: Toward Efficient Electrocatalytic Reduction of CO₂ to Formate

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Defect engineering in earth-abundant electrocatalysts for CO2 and N2 reduction

Abstract: The electrocatalytic CO2 reduction reaction (CRR) and N2 reduction reaction (NRR), which convert inert small molecules into high-value products under mild conditions, have received much research attention.

Cited by 505 publications

References 254 publications

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

Overcoming Chemical Inertness under Ambient Conditions: A Critical View on Recent Developments in Ammonia Synthesis via Electrochemical N2 Reduction by Asking Five Questions

Engineering Electronic Structure of Stannous Sulfide by Amino‐Functionalized Carbon: Toward Efficient Electrocatalytic Reduction of CO2 to Formate

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Product

Resources

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Defect engineering in earth-abundant electrocatalysts for CO₂ and N₂ reduction

Overcoming Chemical Inertness under Ambient Conditions: A Critical View on Recent Developments in Ammonia Synthesis via Electrochemical N₂ Reduction by Asking Five Questions

Engineering Electronic Structure of Stannous Sulfide by Amino‐Functionalized Carbon: Toward Efficient Electrocatalytic Reduction of CO₂ to Formate