Electrochemical reduction of CO2 on SnO2/nitrogen-doped multiwalled carbon nanotubes composites in KHCO3 aqueous solution

Zhang, Rui; Lv, Weixin; Li, Guanghua; Lei, Lixu

doi:10.1016/j.matlet.2014.11.040

Cited by 61 publications

(25 citation statements)

References 16 publications

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“…A few studies dealing with CO 2 reduction on nanoparticulate tin oxide have surfaced in the past years. 63,[83][84][85][86] Del Castillo et al studied the effect of Sn particle size and metal loading on the electrolysis current density using electrochemical methods. 70 They found that Sn particles with an average size of 150 nm displayed the best performance, achieving high rates of formate production with FEs of around 70%.…”

Section: Sn/sno 2 Nano-catalysts For Co 2 Electroreductionmentioning

confidence: 99%

Operando Raman Spectroscopy: Studies on the Reactivity and Stability of SnO2 Nanoparticles During Electrochemical CO2 Reduction Reaction

Kuzume

Dutta

Vesztergom

et al. 2018

Encyclopedia of Interfacial Chemistry

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Section: Sn/sno 2 Nano-catalysts For Co 2 Electroreductionmentioning

confidence: 99%

Operando Raman Spectroscopy: Studies on the Reactivity and Stability of SnO2 Nanoparticles During Electrochemical CO2 Reduction Reaction

Kuzume

Dutta

Vesztergom

et al. 2018

Encyclopedia of Interfacial Chemistry

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“…The role of nickel in electrochemical reduction of CO 2 to hydrocarbon is reported to be very encouraging in high-pressure environment [21]. On the other hand, MWCNTs have attracted a great deal of interest as a support material given its nanopore structure that produces nanoscale effects [22,23]. It has been reported that the selectivity of CO 2 to hydrocarbon enhanced significantly due to the special nanoscale effect that gives similar high-pressure effect at the normal condition of pressure [23].…”

Section: Introductionmentioning

confidence: 99%

“…Gas diffusion electrodes give higher current density as well as higher faradaic efficiency. Yamamoto et al [23] adopted the similar approach to obtain high current density by using gas diffusion electrode and metal supported on high surface area activated carbon fiber. Delacourt et al [24] reported the reduction of CO 2 in different electrochemical setups by employing both the supported and unsupported metals.…”

Section: Introductionmentioning

confidence: 99%

NiO/MWCNT Catalysts for Electrochemical Reduction of CO2

et al. 2015

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This communication reports the electrochemical reduction of CO 2 on high surface area NiO/multi-walled carbon nanotube (MWCNT) catalysts. The catalysts are prepared by an incipient wetness technique with different NiO loadings. The prepared catalysts are characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) techniques. A conventional two compartments half-cell and a reverse fuel cell are employed to establish the effects of variation of NiO loading on MWCNT. The characterization results indicate that high surface area of MWCNT provides good NiO dispersion on the catalyst surface. The NiO on MWCNT also shows high electrical conductivity in the fuel cells. In CO 2 reduction, the catalysts demonstrate good CO 2 conversion activity and produce high-pressure effects even at ambient conditions. The reduction product mainly contains syngas (CO and H 2 ). In half-cell evaluation, an increase in current is observed with increasing NiO content up to 20 wt%. Further increase of NiO loading shows no significant increase in current density. Among the studied catalysts, NiO (20 wt%)/MWCNT displays optimum activity in both the half-cell and reverse fuel cell evaluations. With this catalyst, the total faradaic efficiency of 35.2 % is obtained at the potential of −1.7 V versus normal hydrogen electrode (NHE).

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“…Another advantage of hybrid catalysts is its ability to lower the onset and operating potentials needed for CO 2 RR. This advantage was reported with SnO 2 nanoparticles adorned on nitrogen doped multiwalled CNT (N‐MWCNT) where 46% FE of HCOO − was reported at very low operating potential of −0.3 V versus RHE . It is concluded that such optimistic findings will open up research into a variety of transition metals that would be loaded on different supports such as mesoporous carbon, xerogels, carbon gels, etc …”

Section: Active Sites In Metal‐carbon Catalystsmentioning

confidence: 80%

A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO₂ to Value‐Added Chemicals and Fuel

Daiyan

Saputera

Masood

et al. 2020

Advanced Energy Materials

135

104

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Renewable‐electricity‐powered electrocatalytic CO2 reduction reactions (CO2RR) have been identified as an emerging technology to address the issue of rising CO2 emissions in the atmosphere. While the CO2RR has been demonstrated to be technically feasible, further improvements in catalyst performance through active sites engineering are a prerequisite to accelerate its commercial feasibility for utilization in large CO2‐emitting industrial sources. Over the years, the improved understanding of the interaction of CO2 with the active sites has allowed superior catalyst design and subsequent attainment of prominent CO2RR activity in literature. This review tracks the evolution of the understanding of CO2RR active sites on different electrocatalysts such as metals, metal‐oxides, single atoms, metal‐carbon, and subsequently metal‐free carbon‐based catalysts. Despite the tremendous research efforts in the field, many scientific questions on the role of various active sites in governing CO2RR activity, selectivity, stability, and pathways are still unanswered. These gaps in knowledge are highlighted and a discussion is set forth on the merits of utilizing advanced in‐situ and operando characterization techniques and machine learning (ML). Using this technique, the underlying mechanisms can be discerned, and as a result new strategies for designing active sites may be uncovered. Finally, this review advocates an interdisciplinary approach to discover and design CO2RR active sites (rather than focusing merely on catalyst activity) in a bid to stimulate practical research for industrial application.

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Electrochemical reduction of CO2 on SnO2/nitrogen-doped multiwalled carbon nanotubes composites in KHCO3 aqueous solution

Cited by 61 publications

References 16 publications

Operando Raman Spectroscopy: Studies on the Reactivity and Stability of SnO2 Nanoparticles During Electrochemical CO2 Reduction Reaction

Operando Raman Spectroscopy: Studies on the Reactivity and Stability of SnO2 Nanoparticles During Electrochemical CO2 Reduction Reaction

NiO/MWCNT Catalysts for Electrochemical Reduction of CO2

A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO₂ to Value‐Added Chemicals and Fuel

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Electrochemical reduction of CO2 on SnO2/nitrogen-doped multiwalled carbon nanotubes composites in KHCO3 aqueous solution

Cited by 61 publications

References 16 publications

Operando Raman Spectroscopy: Studies on the Reactivity and Stability of SnO2 Nanoparticles During Electrochemical CO2 Reduction Reaction

Operando Raman Spectroscopy: Studies on the Reactivity and Stability of SnO2 Nanoparticles During Electrochemical CO2 Reduction Reaction

NiO/MWCNT Catalysts for Electrochemical Reduction of CO2

A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO2 to Value‐Added Chemicals and Fuel

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A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO₂ to Value‐Added Chemicals and Fuel