Synthesis and Characterization of Nanomaterials for Application in Cost-Effective Electrochemical Devices

Sustainability, Год журнала: 2023, Номер 15(14), С. 10891 - 10891

Опубликована: Июль 11, 2023

Nanomaterials have gained significant attention as a remarkable class of materials due to their unique properties and the fact that they encompass wide range samples with at least one dimension ranging from 1 100 nm. The deliberate design nanoparticles enables achievement extremely large surface areas. In field cost-effective electrochemical devices for energy storage conversion applications, nanomaterials emerged key area research. Their exceptional physical chemical led extensive investigations aimed improving performance cost-effectiveness devices, including batteries, supercapacitors, fuel cells. continuous development enhancement these high-performance are driven by demand enhanced productivity, connectivity, sustainability reduced cost. This review focuses on electrodes, storage, sensors (ES) based nanotechnology. It discusses application nanotechnology in electrochemistry water purification fate substances water, while also introducing green cost-effective, high-fidelity product creation through methods. study emphasizes synthesis novel nanomaterials, such metal–organic frameworks (MOFs), covalent organic (COFs), MXenes, applications devices. Furthermore, it explores integration nanostructures systems economically future along challenges faced nanotechnology-based industries. paper interplay between biosensors, which play vital role Overall, this provides comprehensive overview significance conversion. highlights need further research rapidly evolving serves valuable resource researchers engineers interested latest advancements

Язык: Английский

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A comprehensive review on advances in polyoxometalate based materials for electrochemical water splitting

Coordination Chemistry Reviews, Год журнала: 2024, Номер 504, С. 215644 - 215644

Опубликована: Янв. 17, 2024

Recent years have witnessed a growing global demand for green, sustainable, and reliable energy sources in response to the effects of climate change, pollution, crisis. Consequently, there has been significant focus on utilizing water, most abundant accessible chemical compound, renewable generation. Electrocatalysis pivotal role area green production, serving as fundamental component sustainable exceptionally efficient techniques. To achieve this, design preparation practical, functional groups host/guest compatible materials that are stable, reusable, noble-metal-free, possess structural diversities paramount importance electrochemical water splitting (EWS) systems. Polyoxometalates (POMs), emerged promising electrocatalysts past two decades, offering opportunities achieving aforementioned goals. POMs exhibit exceptional qualities such redox stability, multiredox capability, tunable intrinsic extrinsic properties (e.g., structure design, surface engineering, interface engineering), well desirable ionic conductivity. However, practical applications face substantial challenges, including issues like leaching, agglomeration, low stability. The confinement controlling their composition proven be an effective strategy tackling issues, garnering attention recent years. This review focuses progress advancement application POM-based materials. It provides thorough exploration diverse host/substrate materials, comprising carbon nanotubes, graphdiyne, graphene, nitrides, conductive polymers, MOFs, COFs, CTFs, LDHs, metal carbide MXenes, which categorize into tubular, layered, porous structures. synthesis strategies these examined, elucidating catalytic activities. Notably, highlights research advancements compounds mechanisms, particularly EWS overall electrolysis, tandem anodic hybrid systems, cathodic decoupled Addressing challenges presenting future perspectives, this aims assist selecting robust material partnerships integrating

Язык: Английский

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Polyoxometalate‐Structured Materials: Molecular Fundamentals and Electrocatalytic Roles in Energy Conversion

Advanced Materials, Год журнала: 2024, Номер 36(15)

Опубликована: Янв. 9, 2024

Polyoxometalates (POMs), a kind of molecular metal oxide cluster with unique physical-chemical properties, have made essential contributions to creating efficient and robust electrocatalysts in renewable energy systems. Due the fundamental advantages POMs, such as diversity structures large numbers redox active sites, numerous efforts been devoted extending their application areas. Up now, various strategies assembling POM molecules into superstructures, supporting POMs on heterogeneous substrates, POMs-derived compounds developed for synthesizing electrocatalysts. From multidisciplinary perspective, latest advances POM-structured materials focus fundamentals, electrocatalytic roles, recent breakthroughs POM-derived electrocatalysts, are systematically summarized. Notably, this paper focuses exposing current states, essences, mechanisms how influence activities discloses critical requirements future developments. The challenges, objectives, comparisons, perspectives also discussed. It is anticipated that review will offer substantial impact stimulating interdisciplinary prosperities widespread utilizations electrocatalysis.

Язык: Английский

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Polyoxometalates-based functional materials in chemiresistive gas sensors and electrochemical sensors

TrAC Trends in Analytical Chemistry, Год журнала: 2023, Номер 167, С. 117233 - 117233

Опубликована: Авг. 20, 2023

Язык: Английский

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Design and synthesis of novel polyoxometalate-based binary and ternary nanohybrids for energy conversion and storage

Polyoxometalates, Год журнала: 2023, Номер 2(3), С. 9140037 - 9140037

Опубликована: Сен. 26, 2023

Polyoxometalate (POM) based binary and ternary hybrids, including the combination of POMs, semiconductors, nanostructured carbon (carbon nanotube (CNT), graphene, dots et al.) metal nanoparticles (MNPs), are key materials in photoelectrocatalysis. POM play a role constructing nanohybrids contributing to their photoelectrochemical catalytic properties. These composites combine properties from two or three functional nanoscale materials, resulting wider range applications, catalysis, energy conversion storage, molecular sensors electronics. Herein, we summarize latest progress (POM/Metal, POM/semiconductor POM/nanocarbon) (Metal/POM/nanocarbon) with focus on for photocatalysis, fuel cells, biosensors devices. Current applications critically assessed promising future target systems discussed.

Язык: Английский

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Anisotropic Growth of One-Dimensional Carbides in Single-Walled Carbon Nanotubes with Strong Interaction for Catalysis

Journal of the American Chemical Society, Год журнала: 2023, Номер 145(23), С. 12760 - 12770

Опубликована: Май 8, 2023

Tungsten and molybdenum carbides have shown great potential in catalysis superconductivity. However, the synthesis of ultrathin W/Mo with a controlled dimension unique structure is still difficult. Here, inspired by host–guest assembly strategy single-walled carbon nanotubes (SWCNTs) as transparent template, we reported (0.8–2.0 nm) W2C Mo2C nanowires confined SWCNTs deriving from encapsulated polyoxometalate clusters. The atom-resolved electron microscope combined spectroscopy theoretical calculations revealed that strong interaction between highly carbophilic SWCNT resulted anisotropic growth carbide along specific crystal direction, accompanied lattice strain donation to SWCNTs. template endowed resistance H2O corrosion. Different normal modification on outer surface SWCNTs, such M2C@SWCNTs (M = W, Mo) provided delocalized electron-enriched uniformly construct negatively charged Pd catalyst, which was demonstrated inhibit formation active PdHx hydride thus achieve selective semihydrogenation series alkynes. This work could provide nondestructive way design electron-delocalized expand methodology synthesizing unusual 1D carbophilic-metal (e.g., TaC, NbC, β-W) precise control anisotropy arrays.

Язык: Английский

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Recent advances in polyoxometalate-based materials and their derivatives for electrocatalysis and energy storage

Materials Chemistry Frontiers, Год журнала: 2023, Номер 8(3), С. 732 - 768

Опубликована: Ноя. 8, 2023

This review highlights the significant roles of POMs in electrocatalysis and energy storage, summarizes recent advances POM-based materials their derivatives water-splitting, CO 2 RR, NRR, SCs, rechargeable batteries.

Язык: Английский

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Polyoxometalate/MOF-derived MoSe2/(Ni, Co)Se2 for battery-type electrodes of high-performance supercapacitors

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1000, С. 175107 - 175107

Опубликована: Июнь 6, 2024

Язык: Английский

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The Explicit Multi‐Electron Catalytic Mechanism of Heteropolyvanadotungstate Dominating Ultra‐Durable Room‐Temperature Na‐S Batteries

Advanced Functional Materials, Год журнала: 2024, Номер 34(33)

Опубликована: Апрель 3, 2024

Abstract The room‐temperature sodium‐sulfur (RT Na‐S) batteries have been seriously hindered in their practical application due to the sluggish redox kinetics and incomplete conversion of polysulfides. In this study, a structure‐determined Keggin‐type heteropolyvanadotungstate H 5 PW 10 V 2 O 40 ·30H (PW ) is engineered reveal its catalytic mechanism RT Na‐S system. With assistance precise sites highly reversible multi‐electron properties, as bidirectional molecular catalyst expedites complete conversions between polysulfides insoluble sodium sulfide, while undergoing transformation reduced oxidized states. Furthermore, with multicenter active can capture efficiently. Consequently, cell constructed ‐based modified separator achieves perdurable cyclability up 4000 loops even at C toward an exceptionally low capacity decay rate 0.012% per cycle, far surpassing those current state‐of‐the‐art that employ functional materials based on separator. This work first demonstrates underlying electrochemical reaction processes polyoxometalate‐based materials, which guides solving challenging issues related batteries.

Язык: Английский

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Rapid, Massive, and Green Synthesis of Polyoxometalate-Based Metal–Organic Frameworks to Fabricate POMOF/PAN Nanofiber Membranes for Selective Filtration of Cationic Dyes

Molecules, Год журнала: 2024, Номер 29(7), С. 1493 - 1493

Опубликована: Март 27, 2024

Developing high−efficiency membrane materials for the rapid removal of organic dyes is crucial but remains a challenge. Polyoxometalates (POMs) clusters with anionic structures are promising candidates cationic via electrostatic interactions. However, their shortcomings, such as solubility and inability to be mass−produced, hinder application in water pollution treatment. Here, we propose simple green strategy utilizing room temperature stirring method mass produce nanoscale polyoxometalate−based metal−organic frameworks (POMOFs) porous rhomboid−shaped dodecahedral hexagonal prism structures. The products were labeled POMOF1 (POMOF-PW12) POMOF2 (POMOF-PMo12). Subsequently, series x wt% POMOF1/PAN (x = 0, 3, 5, 10) nanofiber membranes (NFMs) prepared using electrospinning technology, where polyacrylonitrile (PAN) acts “glue” molecule facilitating bonding nanoparticles. as−prepared samples comprehensively characterized exhibited obvious stability, well selective adsorption filtration performance towards dyes. 5 NFM possessed highest efficiency 96.7% RhB, 95.8% MB, 86.4% CV dyes, which realized separation over 95% positively charged from mixed solution. mechanism was explained FT−IR, SEM, Zeta potential, kinetics model, proved that determined interaction, hydrogen bonding, π–π Moreover, presented an outstanding recoverable stable rate after four cycles. This study provides new direction systematic design manufacture properties contaminant removal.

Язык: Английский

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