Themed collection Nanoscience and nanotechnology in electrochemistry

Mesoporous carbon materials have been extensively studied because of their vast potential applications ranging from separation and adsorption, catalysis, and electrochemistry to energy storage.

EMD – a weird but played wonderful role in electrochemistry and its intercalation mechanism suitable for alkaline rechargeable batteries and supercapacitors.

This paper reviews the recent developments in the synthesis and applications of porous graphene materials for supercapacitors.

A key challenge to the exploration of electrochemical energy conversion and storage is the ability to engineer the catalyst in terms of composition, morphology, and structure towards low cost, high activity and high stability.

The Mn-based oxides including MnO, Mn₃O₄, Mn₂O₃, MnO₂, CoMn₂O₄, ZnMn₂O₄ and their carbonaceous composite/oxide supports with different morphologies and compositions as anode materials are reviewed.

Schematic of dopamine detection in blood serum in presence of ascorbic acid and uric acid using polymer brushes reinforced with MWNTs.

Au nanoparticles, with dispersed Pt and Pd atoms on them, supported on n-GaN substrates were prepared. The catalysts showed an enhanced performance for formic acid oxidation, and the mass activity reached 3.5 mA μg_PtPd⁻¹.

Schematic representation of the interference of Pu(IV) in the voltammetric determination of U in a mixed U–Pu solution in 1 M H₂SO₄.

Detailed experimental evidences that neither an overpotential of bioelectrocatalysis, nor direct electron transfer and bioelectrocatalytic reaction rates for an adsorbed enzyme depend on the size of gold nanoparticles, are presented.

Co₃O₄ nanosheets were synthesized by wet chemical technique at low-temperature in alkaline phase.

An atomically thick titanium phosphate thin layer is synthesized and used for sensitive electrochemical detection for Pb(II) with a high sensitivity and low limit of detection.

Bi₂O₃ were deposited on anodized TiO₂ nanotube arrays by chemical bath deposition combined with calcination.

In this present work, a simple regenerable electrochemical aptasensor for the parallel and continuous detection of protein biomarkers is reported.

Highly poison-resistant Pt nanocrystals are synthesized using reductive sugars derived from pectin hydrolysis, showing efficient catalytic performance toward methanol oxidation.

NaTi₂(PO₄)₃ nanoparticles are synthesized by a facile polyol-assisted pyro-synthetic reaction.

A new heated thiol-functionalized ionic liquid (TFIL)/Au composite electrode, which possessed the advantages of a heated electrode technique and ionic liquids (ILs), was designed and fabricated in this study.

Barium sulfate (BaSO₄) is a common impurity in recycled lead paste, and the effect of this impurity in positive active materials on the performance of recycled lead acid batteries was investigated.

First-principles calculations indicate that a novel atomic hollow structure of graphyne and graphdiyne made up of sp- and sp²-hybridized carbon atoms reinforces not only the Na storage capacity but also the Na diffusion.

The nature of the reduction agent changes drastically the palladium nanomaterials chemical stability, which subsequently alters earnestly their catalytic performances.

Ultrasmall multiple phases molybdenum carbides nanocrystals (down to 2.5 nm) on graphene support were synthesized by a simple in situ method. These hybrids show extraordinary high HER activity in acid media.

GO nanosheets in Nafion effectively block the crossover of vanadium ions while hydrogen bonds between GO and Nafion increase the mechanical stability, significantly improving the efficiency and cyclability in a rNafion/GO membrane based VRFB.

We could control the particle growth in the galvanic displacement reaction on amorphous Ge substrate by introducing reduced electron mobility and surface defects over crystalline Ge, where electrochemical Ostwald ripening has been observed.

Nanostructured Pd thin films are prepared from protic ionic liquids via hydrogen-assisted electrodeposition for oxygen reduction reactions.

Recently, LiVP₂O₇ has been investigated as a possible high-voltage substitute for Li₂FeP₂O₇.

The research results have great significance for the in depth understanding of the selectivity of the CO₂ electrochemical reduction process and the sensitivity of the Cu surface structure.

A pristine sulfur electrode with simple PEDOT:PSS coating achieves significant enhancement in both sulfur utilization and capacity retention.

An internal standard protocol is utilised to simultaneously characterise and utilise carbon-based electrode materials during their implementation.

Morphology-driven Li_1.2Mn_0.6Ni_0.14Co_0.06O₂ with excellent cycling stability.

The 2-(phenylazo)azobenzene furnished novel palladacycles in excellent yield, which showed luminescence at rt and catalytic activity. The optoelectronic and electrochemical responses were substantiated with DFT and TDDFT.

Ni-based metal–organic framework (MOF)-derived Ni₂P nanoparticles exhibited high-performance for electrochemical HER, as manifested by a low overpotential and a large cathodic current density.

The electrocatalytic properties of cobalt phthalocyanine modified reduced graphene oxide for peroxynitrite and hydrogen peroxide are investigated.

Sensitive detection of glucose using a glassy carbon electrode modified with glucose oxidase and multi-walled carbon nanotubes decorated with palladium nanoparticles.

Thin polythiophene film prepared via electrochemical polymerization has been successfully used as the hole-transporting layer in CH₃NH₃PbI₃ perovskite solar cells, affording a series of ITO/polythiophene/CH₃NH₃PbI₃/C₆₀/BCP/Ag devices.

The graphene aerogel we prepared contains an interconnected porous structure, and it exhibits the best electrochemical performance when thermal reduced at 250 °C.

A model considering conformational packing and structural relaxation–swelling effects describes and quantifies chronopotentiometric responses from conducting polymer film electrodes.

A new bionanocomposite electrode based on cytochrome c immobilized graphene oxide-multiwalled carbon nanotube is used to fabricate a highly selective and sensitive amperometric biosensor for the picomolar level detection of hydrogen peroxide which may find application in bioimaging and healthcare

Polypyrrole layers were deposited on polycrystalline gold from solutions of pyrrole in the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate and its equimolar mixture with water by using potential controlled electrochemical methods.

The impact of carbon type on DCFC performance is explored; the optimum performance is obtained with biomass-derived pine charcoal.

A novel structure–catalytic activity correlation of platinum and palladium alloys is reported in this study.

Using carbon fiber based architecture we demonstrate multi-electron capacity and lower voltage hysteresis from iron fluoride based conversion electrodes.

We report CeO₂ nanostructures with the desired shape synthesized via a simple hydrothermal approach without any specific structure directing agent for supercapacitor applications.

Electrochemical detection of target molecules on tailored graphene nanoribbons.