Nitrogen and oxygen dual-doped porous carbons prepared from pea protein as electrode materials for high performance supercapacitors

Demir, Müslüm; Ashourirad, Babak; Mugumya, Jethrine H.; Saraswat, Sushil Kumar; El‐Kaderi, Hani M.; Gupta, Ram B.

doi:10.1016/j.ijhydene.2018.03.220

Cited by 74 publications

(34 citation statements)

References 61 publications

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“…In contrast, Fe/Pani/RGO displayed a reversible loop on the isotherm plot, categorized as type II isotherm. This isotherm plot inferred the absence of micro/mesopores on Fe/Pani/RGO, in good agreement with its surface morphology that showed dense agglomeration, that has disrupted the growth of interspace voids . The BET surface area of the catalysts were 249.18, 55.15, and 19.58 m 2 /g and total pore volume 0.19, 0.186, and 0.11 cm 3 /g for Fe/Urea/RGO, Fe/ChoCl/RGO, and Fe/Pani/RGO, respectively.…”

Section: Resultssupporting

confidence: 72%

“…Based on Table 1 with its surface morphology that showed dense agglomeration, that has disrupted the growth of interspace voids. 46 volume size despite the differences in the surface area. High pore volume was believed to accelerate the oxygen reactants to arrive at the active sites and, thus, giving high onset potentials and current densities.…”

Section: Physicochemical and Electrochemical Characterizationsmentioning

confidence: 99%

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Noble‐free oxygen reduction reaction catalyst supported on Sengon wood ( Paraserianthes falcataria L. ) derived reduced graphene oxide for fuel cell application

et al. 2019

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Summary Reduced graphene oxide (RGO) has progressed as one of key emerging carbon for catalyst support material. As an alternative to the conventional RGO precursor, biomass Sengon wood was converted into RGO for use as a noble metal free catalyst support in oxygen reduction reaction (ORR). This work intends to reveal the applicability of Sengon wood‐derived RGO in anchoring/doping iron and nitrogen particles onto its surface and to study its ORR performance in a half‐cell environment. Thin‐sheet layer and highly defective (ID/IG) was gradually obtained at elevated pyrolysis temperature of Sengon wood graphene oxide (GO) at range 700°C to 900°C. As prepared RGO was further doped into catalyst (Fe/N/RGO) through the same pyrolysis procedure at a selected temperature after mixing the GO powder with iron chloride and different nitrogen precursors (urea, choline chloride, and polyaniline) at a fixed ratio. The ORR activity reached a current density up to 2.43 mA/cm2, which in conjunction with smooth multilayer sheet morphology and high graphitic‐N content as the active sites. Stability analysis indicated an 85% current efficiency and only 0.03 V reduction in onset potential on methanol resistant test for Fe/ChoCl/RGO catalyst. This study revealed that Sengon wood‐derived RGO successfully supported Fe‐N‐C catalyst which showed comparable oxygen reduction activity to Pt/C.

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Section: Resultssupporting

confidence: 72%

Section: Physicochemical and Electrochemical Characterizationsmentioning

confidence: 99%

Noble‐free oxygen reduction reaction catalyst supported on Sengon wood ( Paraserianthes falcataria L. ) derived reduced graphene oxide for fuel cell application

et al. 2019

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“…The mung bean carbons with different structures and compositions offer a chance for investigating the structure‐performance relationship of bio‐carbon as supercapacitor. Based on other works, two points are beneficial to the specific capacitance of carbon material: (1) hierarchical nanostructure composed of macroporous and meso/microporous, which facilitates fast mass transport, along with large surface area for electrical charge storage; (2) heteroatom doping generate extra pseudocapacitance As shown in Figure , the specific capacitance was calculated by GCD curves and correlated with BET surface area, N content, charge transfer resistance Rct, and defect degree I D /I G . The results indicate that the specific capacitance correlates positively to the BET surface area, N content, and I D /I G .…”

Section: Resultsmentioning

confidence: 99%

Calcium Chloride Activation of Mung Bean: A Low‐Cost, Green Route to N‐Doped Porous Carbon for Supercapacitors

Zhong

Xie

et al. 2019

ChemistrySelect

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N‐doped porous carbons were prepared from mung bean flour by chemical activation with calcium chloride and urea. Adjusting the precursor and preparation temperature had significant effect on the graphitization, specific surface area, porosity and surface chemical composition of the porous carbons. The material prepared from the mixture of mung bean flour, urea, and calcium chloride at 800 °C was the optimal sample. It exhibited an excellent specific capacitance (247.2 F g−1 at 2 mV s−1 and 300.5 F g−1 at 1 A g−1, respectively), outstanding rate performance (178.6 F g−1 at 200 and 225 F g−1 at 100 A g−1, respectively) and good durability (93.2 and 97.5% capacitance retention after 10000 cyclic voltammograms and 2000 galvanostatic charge/discharge, respectively) in 6 M KOH. The structure‐performance relationships reveal that the excellent specific capacitance of this sample arises from its plentiful porosities, abundant doped‐N and high carbonation.

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“…Peak separation was applied to this spectrum, and three types were obtained (from low to high binding energy): pyridinic N, pyrrolic N, and graphitic N. Figure indicates a chemical shift due to bonding between oxygen and carbon atoms; thus we examined presence of chemical bonds (N‐O) between oxygen and nitrogen atoms. According to a previous study, peak binding energy of pyridine‐N‐oxide is 404 eV, while no corresponding upsurge is observed in Figure . Therefore, N‐O peak was not considered in Figure .…”

Section: Resultsmentioning

confidence: 68%

Nitrogen doping of carbon nanoballoons by radiofrequency magnetron plasma and evaluation of their oxygen reduction reaction activity

Takahashi

Harigai

Tanimoto

et al. 2019

Elect Comm in Japan

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Nitrogen‐doped carbon materials exhibit a catalytic activity, such as an oxygen reduction reaction (ORR). In this study, we performed nitrogen doping on a carbon nanoballoon (CNB), which is a nanometer‐sized carbon particle in the form of a hollow sphere made of graphite by radiofrequency (RF) magnetron plasma in a gas mixture of nitrogen and helium. Nitrogen‐doped CNBs (N‐doped CNBs) were prepared by different plasma irradiation conditions: the sample installation positions, input powers, and irradiation times. The samples were examined for chemical state by X‐ray photoelectron spectroscopy (XPS). Hydrodynamic voltammetry was used for the evaluation of the catalytic activity of a N‐doped CNB with a pyridinic N concentration of 0.4‐1.0 at.%. As a result, the onset potential was measured to be 0.13 V versus RHE (reversible hydrogen electrode), which was close to the previously reported data of highly oriented pyrolytic graphite (HOPG) with a pyridinic N concentration of 0.57 at.%, which was prepared by annealing under NH3.

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Nitrogen and oxygen dual-doped porous carbons prepared from pea protein as electrode materials for high performance supercapacitors

Cited by 74 publications

References 61 publications

Noble‐free oxygen reduction reaction catalyst supported on Sengon wood ( Paraserianthes falcataria L. ) derived reduced graphene oxide for fuel cell application

Noble‐free oxygen reduction reaction catalyst supported on Sengon wood ( Paraserianthes falcataria L. ) derived reduced graphene oxide for fuel cell application

Calcium Chloride Activation of Mung Bean: A Low‐Cost, Green Route to N‐Doped Porous Carbon for Supercapacitors

Nitrogen doping of carbon nanoballoons by radiofrequency magnetron plasma and evaluation of their oxygen reduction reaction activity

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