Design of a novel and efficient electro-Fenton cathode with skeleton of melamine foams

Zhang, Yimei; Chen, Zhuang; Wu, Panpan; Duan, Yaxiao; Zhao, Yuan; Zhou, Lincheng; Lai, Yuxian; Wang, Fei

doi:10.1016/j.matlet.2018.12.096

Cited by 13 publications

(8 citation statements)

References 9 publications

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“…However, the energy consumption was 420 kWh kgTOC −1 , which was much higher than that of our work (66.4 kWh kgTOC −1 ) 71 . Compared with the TOC removal efficiency and energy consumption of these pollutants in literature, EF process based on NADE had a good performance, especially lower energy consumption (36.6-91.7 kWh kgTOC −1 ) 22,72,73 .…”

Section: And Supplementarymentioning

confidence: 86%

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: And Supplementarymentioning

confidence: 86%

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

et al. 2020

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“…A melamine sponge is a commercial polymer sponge that is widely used in oil–water separation, − electrode materials − and dye degradation . Recently, it has been exploited as the photothermal layer due to its high porosity, low density, and low thermal conductivity after carbonization. − The microscopic morphology of CMS and PMCS were compared under SEM (Figure S1).…”

Section: Results and Discussionmentioning

confidence: 99%

Efficient Solar Vapor Generation under One Sun with Surrounding Heating

Yang

Zhang

et al. 2022

ACS Sustainable Chem. Eng.

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Solar vapor generation is one of the environmentally friendly methods to absorb solar energy and produce clean water. Yet the water yield and low salt tolerance of the device fundamentally limit its practical applications. Herein, we designed a bilayer device composed of a thickness-optimized polypyrrole-modified carbon sponge chip (PMCS) (as the vapor generation layer) and a heat reflective film (HRF) (as the thermal insulation layer). The coated polypyrrole increases the absorption efficiency and reduces the vaporization enthalpy of water, thus improving the water yield by 26%. The HRF reduces the heat loss via a novel surrounding heating effect, which increases the water yield by 64%. We further enhance the heat localization by downsizing the thickness of PMCS from 6 mm to 1 mm, which increases the water yield by 27%. With all these merits, the PMCS-HRF device performs an efficient solar vapor generation with a water yield of 2.10 kg m–2 h–1 and a photothermal efficiency of 94%. Moreover, the bilayer device exhibits good salt tolerance, which maintains 1.87 kg m–2 h–1 (with a retention >90%) after a continuous 12 h of solar illumination.

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“…Unlike PU foam, MF foam possesses good flame-retardant properties due to its high nitrogen content. The morphology of the MF foam is similar to that of the PU foam in that both have similar shape of plateau border (triangular cross-section). − Modified MF foam finds uses in oil–water separation, electrical systems such as current collectors and capacitors, and applications in niche areas such as liquid–liquid extraction. ,,− Figure illustrates the typical appearance, morphology, and flexibility of the carbon foam prepared from MF. In the subsequent section, we discuss the key features of MF foam surface modification for various applications.…”

Section: Surface Modification Of Thermoset Foamsmentioning

confidence: 90%

Exploring the Multifunctional Applications of Surface-Coated Polymeric Foams─A Review

Sakhadeo

Patro

2022

Ind. Eng. Chem. Res.

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Polymeric foams are porous, lightweight, and low-cost materials. Traditionally, polymeric foams have been used in home appliances, automotive, construction, transportation, and aerospace. However, the modern advancements and the materials demand have fostered the expansion of the application realm of these foams to other technological areas encompassing energy storage devices and Li-ion batteries, piezoresistive sensors, biomedical scaffolds, oil−water separation and water remediation etc., through coating. The sustainable technological solutions of these low-cost foams have now been realized through mutual attributes of their properties (high surface area, open-cell, low density, and flexibility), the availability of numerous advanced materials (e.g., carbon nanotubes, graphenes and metal oxide nanoparticles), and versatile and innovative coating methods. In this review, we discuss the recent progress in coating techniques of various polymeric foams by surface treatments and their applications. The surface modification of widely used and the most studied thermoset foams, namely, flexible polyurethane, melamine formaldehyde foams, thermoplastic foams such as polypropylene and ethylene vinylene acetate, and polystyrene foams are considered with special emphasis on open-cell foams. Further, hydrophobic coatings which have a large implication in environment cleanup and oil adsorption are highlighted. The use of a wide spectrum of nanoparticles, polymers, and organic compounds as coating materials is investigated. How the inherent properties such as hydrophobicity, adsorption capability, electrical and thermal conductivities, fire retardancy, electromagnetic interference shielding, and biocompatibility of the foam are influenced through modification is explicitly discussed. The methods which have used the modified foam as a support for catalysis and electrodes in Li-ion batteries are also deliberated. The properties of these coated substrates have been found to rely on the coating material, efficacy of the coating method, and the surface properties. Lastly, practical challenges of these foams in large scale use and future prospects in environment cleanup and energy storage have been envisioned.

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Design of a novel and efficient electro-Fenton cathode with skeleton of melamine foams

Cited by 13 publications

References 9 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

Efficient Solar Vapor Generation under One Sun with Surrounding Heating

Exploring the Multifunctional Applications of Surface-Coated Polymeric Foams─A Review

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