KOH activated N-doped novel carbon aerogel as efficient metal-free oxygen reduction catalyst for microbial fuel cells

Tian, Xiaoyu; Zhou, Minghua; Tan, Chaolin; Li, Ming; Liang, Liang; Li, Kerui; Su, Pei

doi:10.1016/j.cej.2018.05.007

Cited by 106 publications

(37 citation statements)

References 64 publications

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“…As shown in Fig. 2a, the isotherms were all type IV, confirming the coexistence of micropores, mesopores, and macropores 43,44 . As the amount of PTFE increased, the BET surface areas decreased from 171.34 to 43.85 m 2 g −1 , the volume of the micropores decreased, but the pore size increased (Supplementary Table 1).…”

Section: Fabrication and Characterization Of Nade As Presented Inmentioning

confidence: 53%

Highly efficient electrosynthesis of hydrogen peroxide on a superhydrophobic three-phase interface by natural air diffusion

et al. 2020

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Hydrogen peroxide (H 2 O 2) synthesis by electrochemical oxygen reduction reaction has attracted great attention as a green substitute for anthraquinone process. However, low oxygen utilization efficiency (<1%) and high energy consumption remain obstacles. Herein we propose a superhydrophobic natural air diffusion electrode (NADE) to greatly improve the oxygen diffusion coefficient at the cathode about 5.7 times as compared to the normal gas diffusion electrode (GDE) system. NADE allows the oxygen to be naturally diffused to the reaction interface, eliminating the need to pump oxygen/air to overcome the resistance of the gas diffusion layer, resulting in fast H 2 O 2 production (101.67 mg h-1 cm-2) with a high oxygen utilization efficiency (44.5%-64.9%). Long-term operation stability of NADE and its high current efficiency under high current density indicate great potential to replace normal GDE for H 2 O 2 electrosynthesis and environmental remediation on an industrial scale.

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Section: Fabrication and Characterization Of Nade As Presented Inmentioning

confidence: 53%

Highly efficient electrosynthesis of hydrogen peroxide on a superhydrophobic three-phase interface by natural air diffusion

et al. 2020

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“…Tian et al use a method known as one‐pot template‐free to prepare N‐doped carbon aerogel (CA) which then activates chemically by potassium hydroxide (KOH). The surface area and porous structure have been efficiently increased by KOH activation, additionally activated the nitrogen species activity, and increased the content of oxygen functional groups such as C─O─C and COOH.…”

Section: Aerogel Application In Fuel Cellmentioning

confidence: 99%

Current status, opportunities, and challenges in fuel cell catalytic application of aerogels

Shaari

Kamarudin

2019

Int J Energy Res

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Summary Aerogel is known as one of today's 10 advanced structures that have earned a special place in industry or research based on its very high porosity, high active surface area, and low density. There are various methods that can be used to produce it as well as make it easily produced in bulk as subtopics in this paper in Section 2.0. At present, aerogels are widely used in catalytic applications, energy storage, photocatalysts, membrane separation, and fuel cells. Aerogel application in fuel cell has been discussed in Section 3.0 which include carbon‐based aerogel, graphene‐based aerogel, other aerogel based, and non‐noble catalyst with aerogel. This article is a reference for researchers to identify the advantages and opportunities available to lower costs and improve the performance of fuel cell systems that rely heavily on cost‐rich catalysts such as platinum. Opportunities and challenges in developing aerogel structures in the future are also explained in Section 5.0 in this paper.

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“…Additionally, the presence of heteroatoms is desired to increase pseudo-capacitive phenomena that result from fast and reversible redox reactions and from Faradaic charge transfer reactions. Recent research has shown that it is possible to develop bio-based carbon materials with properties similar or superior to their fossil-based counterpart in galvanic elements such as lithium (LIB) or sodium-ion batteries (SIB), supercapacitors, microbial fuel cells [ 134 , 135 ] or fuel cells [ 136 , 137 , 138 ].…”

Section: Microporous Carbon Materials In Energy Storage Systemsmentioning

confidence: 99%

Biobased Functional Carbon Materials: Production, Characterization, and Applications—A Review

Correa

Kruse

2018

Materials

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Even though research on porous carbon materials from biomass dates back to at least hundred years, it is still an extremely relevant topic. These materials can be found in applications that range from those that are widely known, such as water treatment, to others that are newer and indispensable for the transition towards environmentally friendly technologies, such as lithium- and sodium-ion batteries. This review summarizes some of the most relevant research that has been published concerning production technologies, insights on the chemical reaction mechanisms, characterization techniques, as well as some examples of the applications and the properties that the carbon materials must fulfil to be used in those applications.

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KOH activated N-doped novel carbon aerogel as efficient metal-free oxygen reduction catalyst for microbial fuel cells

Cited by 106 publications

References 64 publications

Highly efficient electrosynthesis of hydrogen peroxide on a superhydrophobic three-phase interface by natural air diffusion

Highly efficient electrosynthesis of hydrogen peroxide on a superhydrophobic three-phase interface by natural air diffusion

Current status, opportunities, and challenges in fuel cell catalytic application of aerogels

Biobased Functional Carbon Materials: Production, Characterization, and Applications—A Review

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