A nickel oxide-decorated <i>in situ</i> grown 3-D graphitic forest engrained carbon foam electrode for microbial fuel cells

Singh, Shiv; Pophali, Amol; Omar, Rishabh Anand; Kumar, Rajeev; Kumar, Pradip; Mondal, D.P.; Pant, Deepak; Verma, Nishith

doi:10.1039/d0cc07303b

Cited by 42 publications

(13 citation statements)

References 19 publications

(22 reference statements)

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“…In the study, EIS plots are represented by straight lines at lower frequency range whereas semicircles at higher frequency range [39]. The semicircle is formed due to charge transfer and capacitive resistance, while straight line indicates the diffusion resistance characterized by Warburg mass transfer resistance [40]. The internal resistance including polarization resistance of the cathode, ohmic resistance, and double layer capacitance were accounted to be constant [41].…”

Section: Evaluation Of Electrocatalytic Activity Of Fabricatedmentioning

confidence: 99%

Fabrication of High‐Performance MgCoO₂/PEDOT:PSS@Nickel Foam Anode for Bioelectricity Generation by Microbial Fuel Cells

Honnappa

Sundramoorthy

Annamalai

et al. 2022

Journal of Nanomaterials

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We report the fabrication of cost-effective, biocompatible, and high-performance anode made of nickel foam (NF) modified with magnesium cobalt oxide (MgCoO2) and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) as active components. Modified electrodes were prepared upon addition of each component to NF which formed PEDOT:PSS@NF, MgCoO2@NF, and MgCoO2/PEDOT:PSS@NF. These electrodes were compared for their electrocatalytic activity in dual-chambered microbial fuel cells (MFCs). Sewage wastewater was used as feed stock while exoelectrogenic microbes present in wastewater served to generate bioelectricity upon utilizing organic waste and glucose as an electron donor. The maximum power and current density values were found to be 494 mWm−2 and 900 mA m−2 using MgCoO2/PEDOT:PSS@NF anode. It was ~2.5 times higher than that of unmodified NF anode. Electrochemical impedance spectroscopy (EIS) analysis exhibited reduction in charge transfer resistance for MgCoO2/PEDOT:PSS@NF anode (25.26 Ω) compared to the unmodified NF anode (61.34 Ω). Thus, with the enhanced electrocatalytic activity and biocompatibility, MgCoO2/PEDOT:PSS@NF anode offered better stability and porosity for dense biofilm formation which helped in the efficient generation of bioelectricity.

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Section: Evaluation Of Electrocatalytic Activity Of Fabricatedmentioning

confidence: 99%

Fabrication of High‐Performance MgCoO₂/PEDOT:PSS@Nickel Foam Anode for Bioelectricity Generation by Microbial Fuel Cells

Honnappa

Sundramoorthy

Annamalai

et al. 2022

Journal of Nanomaterials

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“…The crystallite size of the Ni nanoparticles was calculated to be ∼43 nm, which agrees with the crystallite size mentioned in the literature. 51…”

Section: Resultsmentioning

confidence: 99%

Coiled flow inverter mediated synthesis of activated carbon fiber-supported Ni nanoparticles

et al. 2022

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“…The XRD patterns of the selected catalyst samples are shown in Figure a. For all catalysts, cubic NiO was identified by characteristic Bragg peaks at 37.2° (111), 43.3° (200), and 62.9° (220) (ICDD PDF 00-047-1049) . The absence of Ce-containing phases up to 1 wt % of Ce loading indicates its high dispersion.…”

Section: Resultsmentioning

confidence: 99%

Effect of Cerium Promoters on an MCM-41-Supported Nickel Catalyst in Dry Reforming of Methane

Al‐Fatesh

Kumar

Kasim

et al. 2021

Ind. Eng. Chem. Res.

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Metrics & MoreArticle Recommendations * sı Supporting Information ABSTRACT: 0.1−3 wt % Ce-promoted MCM-41-supported nickel catalysts were prepared for dry reforming of CH 4 (DRM) and characterized by surface area and pore analyses, powder X-ray diffraction , temperature-programed reduction with H 2 , temperature-programed CO 2 desorption, X-ray photoelectron spectroscopy, thermogravimetric analysis, and scanning transmission electron microscopy using a high-angle annular dark field. Notably, 5Ni0.5Ce/MCM-41 has a bimodal distribution of NiO crystallites inside and outside the pores of MCM-41, the highest number of basic sites inducing profound CO 2 interactions with the surface, and metallic nickel particles interacting with the support for facilitating CH 4 dissociation. In addition, a thin surface layer of ceria provides surface oxygen species for carbon deposit oxidation. All these physiochemical properties ensured >90% conversion (H 2 /CO ∼ 1) over 330 min on stream and >80% conversion over 75 h of time on stream (H 2 /CO = 0.98) over the 5Ni0.5Ce/MCM-41 catalyst. A higher ceria loading than 0.5 wt % masked the active Ni sites with a ceria layer, which diminished the number of basic sites and deteriorated the catalytic performance.

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A nickel oxide-decorated in situ grown 3-D graphitic forest engrained carbon foam electrode for microbial fuel cells

Abstract: Carbon foam was used as a substrate for NiO and growing carbon nanofibers. The synthesized NiO-CNF-CF electrode was successfully used as an efficient electrode for a microbial fuel cell.

Cited by 42 publications

References 19 publications

Fabrication of High‐Performance MgCoO₂/PEDOT:PSS@Nickel Foam Anode for Bioelectricity Generation by Microbial Fuel Cells

Fabrication of High‐Performance MgCoO₂/PEDOT:PSS@Nickel Foam Anode for Bioelectricity Generation by Microbial Fuel Cells

Coiled flow inverter mediated synthesis of activated carbon fiber-supported Ni nanoparticles

Effect of Cerium Promoters on an MCM-41-Supported Nickel Catalyst in Dry Reforming of Methane

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A nickel oxide-decorated in situ grown 3-D graphitic forest engrained carbon foam electrode for microbial fuel cells

Abstract: Carbon foam was used as a substrate for NiO and growing carbon nanofibers. The synthesized NiO-CNF-CF electrode was successfully used as an efficient electrode for a microbial fuel cell.

Cited by 42 publications

References 19 publications

Fabrication of High‐Performance MgCoO2/PEDOT:PSS@Nickel Foam Anode for Bioelectricity Generation by Microbial Fuel Cells

Fabrication of High‐Performance MgCoO2/PEDOT:PSS@Nickel Foam Anode for Bioelectricity Generation by Microbial Fuel Cells

Coiled flow inverter mediated synthesis of activated carbon fiber-supported Ni nanoparticles

Effect of Cerium Promoters on an MCM-41-Supported Nickel Catalyst in Dry Reforming of Methane

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Fabrication of High‐Performance MgCoO₂/PEDOT:PSS@Nickel Foam Anode for Bioelectricity Generation by Microbial Fuel Cells

Fabrication of High‐Performance MgCoO₂/PEDOT:PSS@Nickel Foam Anode for Bioelectricity Generation by Microbial Fuel Cells