Electrochemical Reduction of Carbon Dioxide to Formic Acid in Ionic Liquid [Emim][N(CN)2]/Water System

Zhang, Xiangjing; Zhao, Ying; Hu, Shuozhen; Gliege, Marisa E.; Liu, Yumin; Liu, Runjing; Scudiero, Louis; Hu, Yongqi; Su, Hongyan

doi:10.1016/j.electacta.2017.06.112

Cited by 35 publications

(14 citation statements)

References 43 publications

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“…al. 197 A high selectivity for FA production has been demonstrated by Hardacre and co-workers using a porous and dendritic Cu-based electrode with high surface area when assessed in [EMIM](BF4)/H2O (92/8 v/v) electrolyte. 198 This system produces formate with moderate activity (j = 6.5 mA/cm 2 ) and selectivity (FE = 87%) at moderate operational potential and sustained for 8 h without electrode deactivation.…”

Section: Effects Of Solvent and Electrolytementioning

confidence: 99%

Enabling storage and utilization of low-carbon electricity: power to formic acid

Chatterjee

Dutta

Lum

et al. 2021

Energy Environ. Sci.

155

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Section: Effects Of Solvent and Electrolytementioning

confidence: 99%

Enabling storage and utilization of low-carbon electricity: power to formic acid

Chatterjee

Dutta

Lum

et al. 2021

Energy Environ. Sci.

155

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“…Additionally, RTILs with [DCA] anions have a rather low viscosity, which can also provide positive effects for electrocatalysis due to high conductivity and reduced diffusion limitations. Compared to conventional RTIL or RTILs with hydrophobic bis(trifluoromethylsulfonyl)amides, the use of the ionic liquid 1‐ethyl‐3‐methylimidazolium [EMIM][DCA] as an electrolyte for CO 2 RR is not wide spread and only a few studies exist so far …”

Section: Introductionmentioning

confidence: 99%

Role of H₂O for CO₂ Reduction Reactions at Platinum/Electrolyte Interfaces in Imidazolium Room‐Temperature Ionic Liquids

2020

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CO 2 reduction reactions (CO 2 RR) are interesting for power-to-x applications and have been studied on Pt electrodes in 1-ethyl-3-methylimidazolium dicyanamide [EMIM][DCA] as well as in 1ethyl-3-methylimidazolium [EMIM][BF 4 ], 1-butyl-3-methylimidazolium [BMIM][BF 4 ] and 1-ocytl-3-methylimidazolium tetrafluoroborate [OMIM] [BF 4 ] electrolytes. Cyclic voltammetry indicates a strong increase in activity for CO 2 RR with water concentration, which was investigated on a molecular level by using IR absorption spectroscopy (IRAS) and sum-frequency generation (SFG) to address both bulk and surface-adsorbed species. IRAS demonstrates that the formation of an imidazolium carboxylic acid intermediate occurs at electrode potentials as high as À 0.4 V, which depend on the choice of the RTIL and the water concentration. In addition, SFG spectroscopy provides evidence for the formation of CO on Pt atop sites and was used to determine the onset potential for the formation CO. In [BMIM] [BF 4 ] and [OMIM] [BF 4 ] electrolytes, the formation of CO is negligible even at very negative potentials of À 1.5 V, but for [EMIM][DCA] and [EMIM] [BF 4 ] the formation of CO is observed and the onset potential shifts significantly with the H 2 O concentration. Taking the Stark tuning rate (40 cm À 1 /V) of the CO band into account, we conclude that the CO coverage is fairly low, yet the presence of CO leads to deactivation of the Pt surface and to a decrease in reduction currents.

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“…Williams first reported on the electrochemical reduction of CO 2 to formic acid in 1978 (Williams et al, 1978), and since then interesting investigations have been undertaken by using electrochemical (Lu et al, 2014;Gupta et al, 2016;Zhang et al, 2017b), photoelectrochemical (Lu et al, 2017;, catalytic (Moret et al, 2014;Mori et al, 2018), and photocatalytic (Premkumar and Ramaraj, 1997;Qin G. et al, 2013) approaches. However, despite the ideality of this system, several aspects should be considered to boost the thermodynamically uphill formation of liquid formic acid from gaseous CO 2 and H 2 .…”

Section: Introductionmentioning

confidence: 99%

New Approaches Toward the Hydrogen Production From Formic Acid Dehydrogenation Over Pd-Based Heterogeneous Catalysts

et al. 2019

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The urgency for finding clean energy sources is nowadays latent, and the role of hydrogen in the future of energy is well-recognized. However, there are still various barriers that limit the widespread utilization of hydrogen, which are mainly related to its storage and transportation. Chemical hydrogen storage stands out as a suitable alternative to traditional physical storage methods, and formic acid holds tremendous promise within the molecules studied so far. This review summarizes some of the recent approaches considered in our research group for the preparation of efficient catalysts for the production of hydrogen via dehydrogenation of formic acid by using Pd-based heterogeneous catalysts supported on carbon or carbon-containing materials. Several routes were considered to attain efficient catalysts, from the optimization of the size and composition of the nanoparticles to the modulation of important features of the support, such as the porous texture and nitrogen doping level.

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Electrochemical Reduction of Carbon Dioxide to Formic Acid in Ionic Liquid [Emim][N(CN)2]/Water System

Cited by 35 publications

References 43 publications

Enabling storage and utilization of low-carbon electricity: power to formic acid

Enabling storage and utilization of low-carbon electricity: power to formic acid

Role of H₂O for CO₂ Reduction Reactions at Platinum/Electrolyte Interfaces in Imidazolium Room‐Temperature Ionic Liquids

New Approaches Toward the Hydrogen Production From Formic Acid Dehydrogenation Over Pd-Based Heterogeneous Catalysts

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Electrochemical Reduction of Carbon Dioxide to Formic Acid in Ionic Liquid [Emim][N(CN)2]/Water System

Cited by 35 publications

References 43 publications

Enabling storage and utilization of low-carbon electricity: power to formic acid

Enabling storage and utilization of low-carbon electricity: power to formic acid

Role of H2O for CO2 Reduction Reactions at Platinum/Electrolyte Interfaces in Imidazolium Room‐Temperature Ionic Liquids

New Approaches Toward the Hydrogen Production From Formic Acid Dehydrogenation Over Pd-Based Heterogeneous Catalysts

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Role of H₂O for CO₂ Reduction Reactions at Platinum/Electrolyte Interfaces in Imidazolium Room‐Temperature Ionic Liquids