Boron and nitrogen co-doped carbon nanosheets encapsulating nano iron as an efficient catalyst for electrochemical CO2 reduction utilizing a proton exchange membrane CO2 conversion cell

Ghosh, Sreetama; Ramaprabhu, Sundara

doi:10.1016/j.jcis.2019.10.030

Cited by 28 publications

(22 citation statements)

References 43 publications

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“…Thus, the development of efficient catalysts capble for electrochemically converting CO 2 to CO is attracting increasing attention. To date, various nanostructured metal catalysts have been prepared for selective CO production, such as Au, Ag, Pd, Zn metals as well as single‐atom catalysts [11–16] . Recently, metal‐free carbon materials have emerged as alternative CO 2 RR catalysts owing to their abundance, porous structure, low cost and environmental friendliness [17,18] .…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and Boron Co‐Doped Carbon Spheres for Carbon Dioxide Electroreduction

et al. 2021

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The electrochemical CO2 reduction reaction (CO2RR) powered by renewable electricity is a promising route to close the carbon cycle, but it suffers from low product selectivity and high overpotential. Here we develop nitrogen and boron co‐doped hollow carbon spheres (NB−CS) through the pyrolysis of a mixture comprising low‐molecular‐weight phenolic resols, melamine and boric acid. The optimized NB−CS catalyst presents high CO2RR performance and achieves a CO Faradaic efficiency of 95.1% at a low overpotential of 310 mV, superior to carbon spheres doped with nitrogen or boron alone. Structural and electrochemical characterizations indicate that the efficient CO2RR to CO over the NB−CS catalyst is likely ascribed to the unique graphitized architecture along with high conductivity, large surface area and high density of exposed N and B reactive sites. This work highlights opportunities to use cost‐effective and readily available carbon nanomaterials as efficient CO2RR catalysts.

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Section: Introductionmentioning

confidence: 99%

Nitrogen and Boron Co‐Doped Carbon Spheres for Carbon Dioxide Electroreduction

et al. 2021

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“…The specic surface area and pore channel information of Ru@CNT-500 were analyzed by N 2 adsorption and desorption method. 34 Fig. 5a shows that the isotherm shows a typical type IV curve.…”

Section: Resultsmentioning

confidence: 91%

Ru catalyst supported on nitrogen-doped nanotubes as high efficiency electrocatalysts for hydrogen evolution in alkaline media

et al. 2020

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“…One of the routes for further improvement in membrane performance is the development of multifunctional materials, whereby the structure of these unique materials will naturally combine with the surface reactive moieties [75]. Incorporating nanoparticles or nanomaterials into host framework using substitution doping is an effective strategy to modulate the features of a membrane [76]. Ideal materials need to have an optimal surface area, tailorable porous structure, high thermal stability, and easy surface functionality [40].…”

Section: Membranes Doped With Nanocompositesmentioning

confidence: 99%

“…Aside from single atom doping, heteroatom doping can essentially improve CO 2 reduction performance because of the synergistic impact of various heteroatoms. e dopants cause variety in control thickness of the nanosheets that upgrade synergist action [76]. Among various polymers utilized for corrosive gas partition, the polyvinyl amine (PVAm) has the most promising potential.…”

Section: Physicochemical Properties Of Membranesmentioning

confidence: 99%

“…Expanding the structural variety of nanoparticles/materials is desirable to better understanding the structure-property relationships. Particle-shaped sorbent materials have been identified from the literature as a potential energy-efficient carbon capture and separations technology [76]. In addition, transformation of nanomorphologies on the membrane surface has been highlighted as novel approach for permeability improvement [108].…”

Section: Structure-property Relationship In Membranesmentioning

confidence: 99%

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Advances in the Use of Nanocomposite Membranes for Carbon Capture Operations

Okoro

Josephs

Sanni

et al. 2021

International Journal of Chemical Engineering

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The adoption of nanodoped membranes in the areas of gas stream separation, water, and wastewater treatments due to the physical and operational advantages of such membranes has significantly increased. The literature has shown that the surface structure and physicochemical properties of nanodoped membranes contribute significantly to the interaction and rejection characteristics when compared to bare membranes. This study reviews the recent developments on nanodoped membranes, and their hybrids for carbon capture and gas separation operations. Features such as the nanoparticles/materials and hybrids used for membrane doping and the effect of physicochemical properties and water vapour in nanodoped membrane performance for carbon capture are discussed. The highlights of this review show that nanodoped membrane is a facile modification technique which improves the membrane performance in most cases and holds a great potential for carbon capture. Membrane module design and material, thickness, structure, and configuration were identified as key factors that contribute directly, to nanodoped membrane performance. This study also affirms that the three core parameters satisfied before turning a microporous material into a membrane are as follows: high permeability and selectivity, ease of fabrication, and robust structure. From the findings, it is also observed that the application of smart models and knowledge-based systems have not been extensively studied in nanoparticle-/material-doped membranes. More studies are encouraged because technical improvements are needed in order to achieve high performance of carbon capture using nanodoped membranes, as well as improving their durability, permeability, and selectivity of the membrane.

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Boron and nitrogen co-doped carbon nanosheets encapsulating nano iron as an efficient catalyst for electrochemical CO2 reduction utilizing a proton exchange membrane CO2 conversion cell

Cited by 28 publications

References 43 publications

Nitrogen and Boron Co‐Doped Carbon Spheres for Carbon Dioxide Electroreduction

Nitrogen and Boron Co‐Doped Carbon Spheres for Carbon Dioxide Electroreduction

Ru catalyst supported on nitrogen-doped nanotubes as high efficiency electrocatalysts for hydrogen evolution in alkaline media

Advances in the Use of Nanocomposite Membranes for Carbon Capture Operations

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