Polyvinyl pyrrolidone mediated fabrication of Fe, N-codoped porous carbon sheets for efficient electrocatalytic CO2 reduction

Hu, Chao; Ye, Mu; Bai, Silin; Gao, Lijun; Cheng, Smiley W.; Mi, Shao‐Bo; Qiu, Jieshan

doi:10.1016/j.carbon.2019.07.071

Cited by 34 publications

(13 citation statements)

References 53 publications

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“…Graphene oxide (GO) was synthesized following the modified Hummers method. , The as-obtained GO aqueous solution was freeze-dried and weighed to ensure that the concentration is 8 mg mL –1 .…”

Section: Methodsmentioning

confidence: 99%

Graphene Oxide-Tuned MoS₂ with an Expanded Interlayer for Efficient Hybrid Capacitive Deionization

Gao

Dong

Bai

et al. 2020

ACS Sustainable Chem. Eng.

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Capacitive deionization (CDI) has shown great promise in desalinating salt water; however, conventional CDI electrode materials suffer from low specific salt capacity and charge efficiency owing to the co-ion expulsion effect. Herein, using expanded MoS 2 nanosheets supported by reduced graphene oxide (MoS 2 /rGO) as the intercalation electrode, we develop a hybrid CDI system that shows a battery-like behavior and can reversibly store cations through the intercalation mechanism. The incorporation of rGO in the composite not only affords a conductive support and ensures fast electron transfer but also, more importantly, widens the MoS 2 interlayer spacing from 0.62 to 0.73 nm. The expanded MoS 2 interlayer facilitates the diffusion of cations and decreases the internal strain during the intercalation/de-intercalation process. Also, it endows MoS 2 /rGO with more accessible sites and space for cations in the electrolyte. Benefiting from the desirable structure features, the hybrid CDI system delivers a remarkable specific salt capacity of 34.20 mg g −1 and a charge efficiency as high as 97% in 300 mg L −1 sodium chloride aqueous solution. The MoS 2 /rGO involved in the CDI system for the adsorption of other metal ions is also verified, indicating its potential applications for the removal of various metal ions in brackish water and seawater.

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Section: Methodsmentioning

confidence: 99%

Graphene Oxide-Tuned MoS₂ with an Expanded Interlayer for Efficient Hybrid Capacitive Deionization

Gao

Dong

Bai

et al. 2020

ACS Sustainable Chem. Eng.

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“…The carbon dioxide electroreduction reaction (CO 2 RR) has been a hot research topic due to its promising application in high‐value utilization of carbon dioxide and renewable electricity storage [1–3] . Developing highly selective catalysts to drive the CO 2 RR to the specific product with high‐value is the current research bottleneck.…”

Section: Figurementioning

confidence: 99%

Thermal Driven High Crystallinity of Bismuth as Robust Catalyst for CO₂ Electroreduction to Formate

et al. 2021

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Electrochemical reduction of carbon dioxide (CO2) can convert greenhouse gases into high value‐added carbon‐based fuels and chemicals, providing a sustainable way to solve energy and environmental crises. Bismuth based catalysts have been found with excellent performance towards CO2 electroreduction to formate but facing great challenge in exploring simple synthesis methods. Herein, the bismuth nanospheres (Bi NSs) with controlled crystallinity were synthesized through a facile solvothermal method following by annealing treatment under Argon protection. For the first time, we demonstrate the catalytic performance of Bi NSs was closely related to the crystallinity. High crystallinity endows Bi NSs with more distinct grain boundaries, providing more active sites for CO2 electroreduction. In a broad potential range from −1.0 to −1.4 V vs. reversible hydrogen electrode (RHE), a high faradaic efficiency of 91∼95 % towards formate was achieved on the high crystallinity Bi NSs.

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“…A zinc‐based anticorrosive coating was prepared by blending PNVPY with polyvinyl butyral (PVB) and it has excellent corrosion resistance owing to larger specific surface area and smaller size of PNVPY NPs. Hu et al 25 used polyvinyl alcohol pyrrolidone (PVP) as a medium to prepare carbon flakes. PVP‐mediated carbon flakes have higher specific surface area and more Fe‐N active sites.…”

Section: Introductionmentioning

confidence: 99%

Preparation of polyvinylpyrrolidone/graphene oxide/epoxy resin composite coatings and the study on their anticorrosion performance

Zhang

Liu

Zhang

et al. 2021

J of Applied Polymer Sci

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Waterborne epoxy resin (EP) is often used as anticorrosive coating in the industrial field. However, small holes and gaps can be formed during the curing process. The corrosive medium easily penetrates the anticorrosive coating and corrodes the metal matrix. Herein, polyvinylpyrrolidone (PVP) and graphene oxide (GO) were doped into EP to improve the shielding and resistance to corrosive media. The composite coatings were prepared successfully by solution blending method. In the PVP/GO composite materials, original spatial structure of GO was changed and the composite was mainly combined by covalent bonding. The surface morphology of hybrid filler was flat and uniform, and the structural defects of GO was reduced. Compared with singlelayer anticorrosive coating, the corrosion potential of PVP/GO/EP coating moved forward and the corrosion current density decreased. The ideal corrosion resistance of PVP/GO/EP composite coatings was mainly because agglom

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Polyvinyl pyrrolidone mediated fabrication of Fe, N-codoped porous carbon sheets for efficient electrocatalytic CO2 reduction

Cited by 34 publications

References 53 publications

Graphene Oxide-Tuned MoS₂ with an Expanded Interlayer for Efficient Hybrid Capacitive Deionization

Graphene Oxide-Tuned MoS₂ with an Expanded Interlayer for Efficient Hybrid Capacitive Deionization

Thermal Driven High Crystallinity of Bismuth as Robust Catalyst for CO₂ Electroreduction to Formate

Preparation of polyvinylpyrrolidone/graphene oxide/epoxy resin composite coatings and the study on their anticorrosion performance

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Polyvinyl pyrrolidone mediated fabrication of Fe, N-codoped porous carbon sheets for efficient electrocatalytic CO2 reduction

Cited by 34 publications

References 53 publications

Graphene Oxide-Tuned MoS2 with an Expanded Interlayer for Efficient Hybrid Capacitive Deionization

Graphene Oxide-Tuned MoS2 with an Expanded Interlayer for Efficient Hybrid Capacitive Deionization

Thermal Driven High Crystallinity of Bismuth as Robust Catalyst for CO2 Electroreduction to Formate

Preparation of polyvinylpyrrolidone/graphene oxide/epoxy resin composite coatings and the study on their anticorrosion performance

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Product

Resources

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Graphene Oxide-Tuned MoS₂ with an Expanded Interlayer for Efficient Hybrid Capacitive Deionization

Graphene Oxide-Tuned MoS₂ with an Expanded Interlayer for Efficient Hybrid Capacitive Deionization

Thermal Driven High Crystallinity of Bismuth as Robust Catalyst for CO₂ Electroreduction to Formate