Facile synthesis and excellent catalytic performance of nitrogen-doped porous carbons derived from banana peel towards oxygen reduction reaction

Kong, Dewang; Liu, Lexin; Yuan, Wenjing; Xie, Anjian

doi:10.1016/j.materresbull.2018.03.019

Cited by 21 publications

(3 citation statements)

References 48 publications

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“…The E onset of C-Cranberry in 0.1 M KOH, seawater, and 0.1 M PBS electrolyte, is about 0.85, 0.69, and 0.75 V, respectively. Even though E onset of C-Cranberry is lower than Pt/C, its performance in alkaline conditions is similar to other reported biomass-based ORR electrocatalysts, such as banana peel, 48 tea leaf residue, 49 and egg. 50 The ORR activity of C-Cranberry in neutral 0.1 M PBS is also still in the range of the reported metal-free electrocatalysts at about 0.70−0.87 V. 51−53 A small decrease in the E onset of C-Cranberry when using neutral electrolytes indicates the promising ORR activity of C-Cranberry in a wide pH range.…”

Section: Resultssupporting

confidence: 84%

Rechargeable Zinc–Air Batteries with Seawater Electrolyte and Cranberry Bean Shell-Derived Carbon Electrocatalyst

et al. 2022

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Zinc–air batteries with seawater electrolyte utilize abundant and cheap resources. However, it requires an electrocatalyst with high bifunctional activity in seawater. In this work, a carbon electrocatalyst is obtained via one-step pyrolysis of the shell waste of cranberry beans. During the oxygen reduction reaction (ORR) in seawater electrolyte, the cranberry bean shell-derived carbon catalyst exhibits an ORR onset potential of 0.69 V vs RHE and an ORR saturating current density of 2.93 mA cm–2, which are promising compared to the ORR performance of Pt/C in seawater electrolyte (0.78 V vs RHE and 3.15 mA cm–2). During OER (oxygen evolution reaction) in seawater electrolyte, the carbon catalyst shows an overpotential of 582 mV at 5 mA cm–2, 35 mV smaller than the commercial Ir/C catalyst (617 mV). Furthermore, when the catalyst is applied to the zinc–air battery with seawater electrolyte, the cell is able to exhibit discharge and charge voltages of 0.93 and 2.2 V, respectively, which are stable for more than 120 cycles of the cycling test. This work highlights the fabrication of metal–air batteries with cost-effective and sustainable resources.

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Section: Resultssupporting

confidence: 84%

Rechargeable Zinc–Air Batteries with Seawater Electrolyte and Cranberry Bean Shell-Derived Carbon Electrocatalyst

et al. 2022

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“…Furthermore, biomass-derived 3D porous carbon materials have aroused significant interest because of their low-cost, plentiful and reproducible resources, innoxious, and natural cross-linked 3D structures. 283 Plenty of potential biomass materials have been applied to design carbon-based catalysts, including cattail, 284 fish scales, 285 seaweed, 286 pomelo peel, 287 wood, 288 egg, 289 and mushroom. 290 An energy-efficient/simple process is to take the advantage of the natural porosity of biomasses for acquiring channels and fabricating high-activity 3D carbon materials.…”

Section: Recent Advances In Carbon-based Electrocatalystsmentioning

confidence: 99%

Carbon-based electrocatalysts for rechargeable Zn–air batteries: design concepts, recent progress and future perspectives

Zou,

Tang,

et al. 2024

Energy Environ. Sci.

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“…The rapid depletion of fossil fuels, along with its negative environmental impact, led researchers to search for new sources of clean and renewable energy [1][2]. Among the growing list of alternative energy sources, fuel cells are said to be one of the most practical renewable energy source [3]. A fuel cell is an energy device that electrocatalytically oxidizes a fuel (e.g.…”

Section: Introductionmentioning

confidence: 99%

Platinum-Free Electrocatalyst for Oxygen Reduction Reaction Derived from the Direct Pyrolysis of Watermelon Peels

Matibag

Geronimo

Garcia

et al. 2019

IJIE

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Carbon-based nanomaterials derived from the pyrolysis of heteroatom-containing carbonaceous precursor was shown to exhibit significant electrocatalytic activity towards oxygen reduction reaction (ORR). Biomass from agricultural waste could be seen as possible low-cost precursor for the preparation of carbon-based ORR electrocatalysts. In this study, watermelon peels (WP) were directly pyrolyzed under N2 atmosphere to produce novel carbon-based ORR electrocatalysts. WP were oven-dried and pulverized using a mechanical grinder to produce WP powder. A weighed amount of the resulting powder was then transferred into a ceramic boat and inside a quartz tube furnace. The WP powder was pyrolyzed from room temperature to pyrolysis temperature T at a rate of 5 °C/min under N2 atmosphere. The temperature was held at T for an hour, followed by natural cooling back to room temperature. The pyrolysis temperature was optimized, with T = 800 °C, 900 °C, and 1000 °C. The resulting pyrolysis products were characterized using cyclic voltammetry (CV), rotating disc electrode voltammetry (RDE), and scanning electron microscopy-energy dispersive x-ray spectroscopy (SEM-EDX). CV revealed that WP pyrolyzed at 1000 °C gave the most positive onset potential (Eonset = 0.40 V) and highest current density (j = 10.79 mA/cm 2), compared to those pyrolyzed at 800 °C (Eonset = 0.30 V; j = 2.047 mA/cm 2) and 900 °C (Eonset = 0.30 V; j = 3.494 mA/cm 2). Levich analysis from RDE data showed that the electrocatalysts prepared at 1000 °C proceeded closest to the ideal four-electron route, compared to those prepared at 800 °C and 900 °C. SEM-EDX analysis showed the changes WP underwent in terms of surface morphology and elemental composition, which are then correlated with the apparent electrocatalytic activities of pyrolyzed WP. These findings present the feasibility of using WP as low-cost precursor for ORR electrocatalysts, which could be utilized in fuel cells.

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Facile synthesis and excellent catalytic performance of nitrogen-doped porous carbons derived from banana peel towards oxygen reduction reaction

Cited by 21 publications

References 48 publications

Rechargeable Zinc–Air Batteries with Seawater Electrolyte and Cranberry Bean Shell-Derived Carbon Electrocatalyst

Rechargeable Zinc–Air Batteries with Seawater Electrolyte and Cranberry Bean Shell-Derived Carbon Electrocatalyst

Carbon-based electrocatalysts for rechargeable Zn–air batteries: design concepts, recent progress and future perspectives

Platinum-Free Electrocatalyst for Oxygen Reduction Reaction Derived from the Direct Pyrolysis of Watermelon Peels

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