Wood aerogel-derived sandwich-like layered nanoelectrodes for alkaline overall seawater electrosplitting

Chen, Hongjiao; Zou, Yihui; Li, Jian; Zhang, Kewei; Xia, Yanzhi; Hui, Bin; Yang, Dongjiang

doi:10.1016/j.apcatb.2021.120215

Cited by 120 publications

(66 citation statements)

References 44 publications

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“…Compared with recently reported overall electrolysis performances (Figure 5d), the as-constructed couple could be an ideal candidate for e cient hydrogen production. 8,13,[50][51][52][53][54][55][56] The electrocatalytic performance of NiFeN-NiTe || NiCoN-NiTe in further high temperature testing (60℃) shows signi cantly improved catalytic activity, demonstrating the positive response of reactivity activity to temperature changes, while also suggesting a new direction for heat utilization (Figure S19). A self-installed solar-powered system was assembled with an output voltage of 1.9 V (Figure S20a and Video S1) and actuated by a wind-powered system at about 1.7 V (Figure S20b and Video S2).…”

Section: Overall Seawater Electrolysis Performancementioning

confidence: 99%

Metal telluride-nitride electrocatalysts for sustainably overall seawater electrolysis

Yang

et al. 2021

Preprint

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High-efficiency alkaline seawater electrolysis is a promising strategy to promote the sustainability of wide-ranging hydrogen (H2) production, and the global goal of carbon neutrality. Searching for an ideal candidate with low cost and high electrocatalytic performance for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) is a major objective. Herein, we report delicate, heterostuctured NiTe-NiCoN and NiTe-NiFeN electrocatalysts constructed of nickel cobalt nitride and nickel iron nitride nanosheets uniformly anchored on NiTe nanorod arrays, respectively, which ensure outstanding HER and OER activity along with ultra-long-term stability. Impressively, the NiTe-NiCoN || NiTe-NiFeN couples in alkaline seawater solution delivered 500 mA cm−2 at a record low voltage of 1.84 V, and realized an industry-level performance via a solar-powered system and a wind-power system. Further comprehensive analysis has revealed that interface engineering strategy not only ensures that the surficial nitride exposes abundant active sites, but also induces electron modulation that optimizes the binding strength of absorption/desorption for the reaction intermediates to enhanced the the intrinsic activity, as well as facilitate faster electron-mass transfer. Notably, a high electric field intensity generated by the unique nanosheet-nanorod structure induces a local “hydroxide enrichment” environment that effectively promotes the OER kinetics, while inhibits the side effects of chlorine. This work shed lights on these novel heterostructured electrocatalysts with strong synergy, while demonstrating the key role of the unique nanostructures in high-efficiency seawater electrolysis.

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Section: Overall Seawater Electrolysis Performancementioning

confidence: 99%

Metal telluride-nitride electrocatalysts for sustainably overall seawater electrolysis

Yang

et al. 2021

Preprint

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“…The development of clean and sustainable energy has attracted extensive interests due to the shortage and serious environmental pollution of traditional fossil fuels (Hui et al 2020;Liu et al 2021a). As a new and clean energy, hydrogen can be generated by water electrosplitting, which is commonly divided into the oxygen evolution reaction (OER) at anode and the hydrogen evolution reaction (HER) at cathode (Chen et al 2021;Hui et al 2021). The OER remains as a major challenge because of the rigid O=O bond and the four-electron transfer.…”

Section: Introductionmentioning

confidence: 99%

Biochar aerogel-based electrocatalyst towards efficient oxygen evolution in acidic media

Hui

Chen

Zhou

et al. 2022

Biochar

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The controllable synthesis of oxygen evolution reaction (OER) electrocatalyst is an urgent need to advance the development of sustainable energy conversion and storage. However, the OER efficiency in acidic media is seriously hindered by slow reaction kinetics. The traditional acidic OER electrocatalysts are more prone to be oxidized and corroded as results of unstable carrier structures and variable electronic states of active species. Herein, a high-performing biochar aerogel (BA) based electrocatalyst were realistically designed and synthetized via joint utilization of the terrestrial lignin and seaweed polysaccharide as carbon sources. Originating from the induction effect of "egg-box" structure in alginate and the self-template effect of lignosulfonate, the BA decorated with Ru/RuS2 particles was synthesized triumphantly. The as-synthesized electrocatalyst required a low overpotential of 228 mV to attain 10 mA cm−2 in 0.5 M H2SO4 and exhibited a good stability for over 12,000 s. The good activity was strongly dependent on the assembled unique two-dimensional/three-dimensional (2D/3D) channels in carbon aerogels. Notably, the numerous defective sites at carbon could strongly interact with the Ru/RuS2 heterojunction for remarkably enhancing the catalytic activity and stability of whole catalytic system in acidic media. This work puts forward a novel and effective strategy towards the enhancement of the acidic OER process by rational regulations of the BA and the coupling effect in micro-interface. Graphical Abstract

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“…Therefore, this technology has received widespread attention. For example, the modification of wood, fibrils ( Hui et al, 2020 ; Chen et al, 2021 ) often uses electroless plating. Due to its wide range of use, high quality of plating, and the ability to obtain a complete and uniform metal/alloy coatings on the surface of metallic or nonmetallic materials of any shape.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Metal/Alloy Nano Coatings for Carbon Nanotubes Based on Electroless Plating

et al. 2022

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A large number of researches on the electroless plating of carbon nanotubes and their applications after plating have emerged, which has attracted more and more attention. In this review article, the existing electroless plating methods for carbon nanotubes were briefly summarized, and the surface coatings were listed and analyzed in detail. At last, the related applications after electroless metal/alloy coatings of carbon nanotubes were discussed in detail. This study aims to provide a reference for the research and improvement of different electroless metals/alloys coatings of carbon nanotubes. After a clear understanding of the electroless metal/alloy coatings of carbon nanotubes, the appropriate coating can be selected according to the actual situation, so that the carbon nanotubes after plating can be used as reinforcement and modification materials for better satisfaction of the needs, and the application of plated carbon nanotubes has reference significance in more fields.

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Wood aerogel-derived sandwich-like layered nanoelectrodes for alkaline overall seawater electrosplitting

Cited by 120 publications

References 44 publications

Metal telluride-nitride electrocatalysts for sustainably overall seawater electrolysis

Metal telluride-nitride electrocatalysts for sustainably overall seawater electrolysis

Biochar aerogel-based electrocatalyst towards efficient oxygen evolution in acidic media

Recent Advances in Metal/Alloy Nano Coatings for Carbon Nanotubes Based on Electroless Plating

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