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Keyword Author: MXene

MXene/carbon based ultra-stable symmetric sodium-ion capacitors for glucose monitoring

Biomass-derived activated carbon and MXenes are promising candidates for high-performance electrochemical energy storage owing to their low cost and excellent charge-storage properties. Herein, we demonstrate a unified single-step molten-salt strategy to synthesize a composite of pumpkin seed-derived activated carbon and Ti3C2Tx MXene in a single pot for sodium-ion capacitor (SIC) applications. In this process, biomass …

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Laser-induced enhancement for the detection of isopropyl alcohol in V2CTx MXene films

The development of efficient gas sensing material having good sensitivity, working at room temperature, and quick response and recovery is imperative for indoor environmental monitoring, especially for detecting volatile organic compounds (VOC). There has been significant interest in 2D materials for gas sensors owing to their high surface area. However, the sensitivity of these materials …

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Recyclable HF-free Ti3C2Tx 3D-printed supercapacitors: their second life in sodium-ion batteries

2D MXenes represent a useful class of materials in various applications and the main constraint for their bulk production is the requirement of hazardous hydrogen fluoride (HF) as an etching agent. Molten salt synthesis is one of the emerging HF-free techniques to produce MXenes, where a mixture of etching salts is heated till their melting …

Recyclable HF-free Ti3C2Tx 3D-printed supercapacitors: their second life in sodium-ion batteries Read More »

Electrochemical nitrate reduction to ammonia using laser-processed Nb2AlC: the role of effective Al etching

Electrocatalytic nitrate reduction reaction to ammonia (NH3) is a promising approach for generating NH3 compared with the widely used Haber–Bosch process. It offers the advantage of zero carbon emission and helps in recycling nitrate waste. However, the challenge remains in the synthesis and engineering of proficient electrocatalytic materials with high faradaic efficiency and yield rate. …

Electrochemical nitrate reduction to ammonia using laser-processed Nb2AlC: the role of effective Al etching Read More »

MXene and polyaniline coated 3D-printed carbon electrode for asymmetric supercapacitor

3D printing has emerged as an attractive manufacturing technique in supercapacitor electrodes owing to the precise and customisable fabrication of complex electrode designs, enhancing the performance and efficiency of the device. Despite the advantages, 3D-printed electrodes are limited by their low conductivity and electrochemical properties, predominantly due to the lack of availability of suitable conductive …

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Hydrofluoric acid-free etched MAX on 3D-printed nanocarbon electrode for photoelectrochemical hydrogen production

MXenes have emerged as a promising material for a disparate range of photo-electrochemical conversion and energy storage devices. However, most reported synthesis process involves hydrofluoric acid (HF) and fluoride-based compounds. HF severe toxicity persists impediment to the scalable production and fabrication of MXenes. Thus, fluoride-free protocols are currently being explored. Here, we demonstrate a novel …

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MXene-functionalised 3D-printed electrodes for electrochemical capacitors

3D printing is a manufacturing technique that can be used to produce electrochemical capacitors with customised shapes and minimal material waste. However, the range of carbon-additive filaments currently commercially available is limited, resulting in 3D-printed electrodes with a poor capacitive performance due to their high thermoplastic content. Herein, a novel approach is presented for enhancing …

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