Graphene/ZnO/Cu2O electrocatalyst for selective conversion of CO2 into n-propanol

Geioushy, Ramadan A.; Khaled, Mazen; Alhooshani, Khalid; Hakeem, Abbas Saeed; Rinaldi, Ali

doi:10.1016/j.electacta.2017.05.185

Cited by 102 publications

(47 citation statements)

References 35 publications

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“…Sun and co-workers demonstrated ECR to CH 3 COOH over N-based Cu(I)/C-doped BN sheets. 67 Note that only Cu 27 , NG quantum dots 95 and graphene/ZnO/Cu 2 O hybrid 28 have been found to convert CO 2 into C 2+ products, the yields of which are however % 30% in both cases. 2D catalysts and strategies to afford C 2+ products with higher efficiency need to be explored.…”

Section: Acetic Acid Selectivitymentioning

confidence: 98%

“…The maximum faradic efficiency for C 2 H 4 , the simplest C 2 product, was reported to be 60%, 26 whereas that of C 3 product (C 3 H 7 OH) is no more than 30%. 27,28 In the multi-electron transfer reduction of CO 2 , the adsorption energies of reaction intermediates seem to follow linear scaling relationships, thus limiting catalytic efficiency. 29,30 In order to improve catalytic activity, breaking such linear scaling relations is required, which can be realized by: (1) reducing coordination numbers, (2) doping with p-block elements, (3) introducing oxophilic sites, and (4) coating the catalyst surface with active ligands.…”

Section: A Perspective Of Electrochemical Co 2 Reductionmentioning

confidence: 99%

“…catalyze this process with maximum faradic efficiency of about 30%. 28 It was hypothesized that an adsorbed C 2 intermediate could undergo intermolecular C-C coupling with an adjacent C 1 intermediate, followed by proton/electron transfers to form propionaldehyde (CH 3 CH 2 CHO) ( Figure 6). 62…”

Section: Formation Of Carbon Monoxidementioning

confidence: 99%

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Fundamentals and Challenges of Electrochemical CO2 Reduction Using Two-Dimensional Materials

Sun

Tao

et al. 2017

Chem

974

658

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Electrochemical CO 2 reduction (ECR) to value-added fuels and chemicals provides a ''clean'' and efficient way to mitigate energy shortages and to lower the global carbon footprint. The unique structures of two-dimensional (2D) nanosheets and their tunable electronic properties make these nanostructured materials intriguing in catalysis. Various 2D nanosheets are showing promise for CO 2 reduction, depending on the preferred reaction product (HCOOH, CO, CH 4 , CH 3 OH, or CH 3 COOH). In this review, we focus on recent progress that has been achieved in using these 2D materials for ECR. We highlight procedures available for tuning catalytic activities of 2D materials and describe the fundamentals and future challenges of CO 2 catalysis by 2D nanosheets.

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Section: Acetic Acid Selectivitymentioning

confidence: 98%

Section: A Perspective Of Electrochemical Co 2 Reductionmentioning

confidence: 99%

See 1 more Smart Citation

Fundamentals and Challenges of Electrochemical CO2 Reduction Using Two-Dimensional Materials

Sun

Tao

et al. 2017

Chem

974

658

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“…They hypothesized that n ‐propanol formation required coupling between CO and hydrogenated carbon. Geioushy et al developed Graphene/ZnO/Cu 2 O electrocatalysts with a ZnO/Cu 2 O weight ratio of 2:1 to achieve Faradaic efficiency of 30% for CO 2 conversion to n ‐propanol at −0.9 V versus Ag/AgCl ( Figure ) …”

Section: N‐propanol Producing Materialsmentioning

confidence: 99%

Section: N‐propanol Producing Materialsmentioning

confidence: 99%

A Review of Metal‐ and Metal‐Oxide‐Based Heterogeneous Catalysts for Electroreduction of Carbon Dioxide

Liu

Trần‐Phú

Chen

2018

Advanced Sustainable Systems

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Capping and, eventually, reducing the atmospheric levels of greenhouse gases such as CO2 is an urgent priority, and a focus of multidisciplinary efforts. Among other techniques, advanced technologies for CO2 capture and conversion are highly desirable to limit CO2 emissions. Electrochemical reduction of CO2, using off‐peak renewable electricity, to value‐added chemicals and fuels has attracted extensive research interest. A main effort is directed toward the development of efficient, selective, and robust electrocatalysts to promote CO2 reduction, due to its sluggish reaction kinetics. Here, recent investigations and achievements in the design of metal‐ and metal‐oxide‐based heterogeneous catalysts are reviewed in terms of catalytic activity, selectivity, stability, and mechanism. A classification of heterogeneous CO2 catalysts is presented based on the main products of electrochemical reduction of CO2, including HCOOH, CO, C2H4, CH3OH, and C3H8O. The key catalysts' properties favoring the production of specific chemical products from the CO2 reduction reaction are critically discussed. The challenges for achieving superior CO2 reduction electrocatalysts are discussed providing future research directions for their design and development.

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Electrochemical Catalysis Processes

2021

Electrocatalysis in Balancing the Natural Carbon Cycle

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Graphene/ZnO/Cu2O electrocatalyst for selective conversion of CO2 into n-propanol

Cited by 102 publications

References 35 publications

Fundamentals and Challenges of Electrochemical CO2 Reduction Using Two-Dimensional Materials

Fundamentals and Challenges of Electrochemical CO2 Reduction Using Two-Dimensional Materials

A Review of Metal‐ and Metal‐Oxide‐Based Heterogeneous Catalysts for Electroreduction of Carbon Dioxide

Electrochemical Catalysis Processes

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