Showing papers in "Electrochimica Acta in 2018"

TL;DR: Electrochromic (EC) materials can be integrated in thin-film devices and used for modulating optical transmittance as discussed by the authors, and have been used in large-area glazing (windows and glass facades) in order to create buildings which combine energy efficiency with good indoor comfort.

TL;DR: In this article, the influence of KOH dosage on the morphology, structure and electrochemical performance (supercapacitor and oxygen reduction reaction (ORR)) was studied in detail, and the optimized ANPC-3, synthesized under the KOH/carbon mass ratio of 3/1, possesses high specific surface area of 1749m 2 ǫg −1, developed hierarchical micro-mesoporous structures as well as moderate nitrogen content (1.37

TL;DR: In this article, nano-TiNb2O7 and its carbon nanotube (CNT) nanocomposites were prepared by direct hydrolysis of TiNb10O29-type crystal structure with O2− vacancies and lower-valence cations, leading to improved Li+-ion diffusion coefficient and increased electronic conductivity.

TL;DR: In this article, a new cathode material for neutral aqueous rechargeable rechargeable zinc battery was proposed, which is a new manganese oxide cathode with average Mn valence state lower than four for rechargeable Zn-birnessite.

TL;DR: The results indicate that the model accuracy does not always improve by increasing the order of the RC network, and the higher-order RC model has better robustness considering the variation in model parameters and sensor errors.

TL;DR: In this article, a water-stable nickel-based metal-organic framework (Ni-MOF) with a Co-MoF, as well as the dual Ni/Co-MOFs-reduced graphene oxide (rGO) nanocomposite in the same reaction vessel is reported.

TL;DR: In this paper, the structural and corrosion behavior of 316L stainless steel fabricated by selective laser melting (SLM) for bipolar plate were investigated and the subsequent heat treatment effect was also clarified.

TL;DR: In this article, the structural transformation and electrochemical mechanism of layered MnO2 during cycling were investigated for zinc-ion battery performance improvement, and they found that during initial cycles, the electrode was able to maintain its layered structure; however, after prolonged cycles, it completely transformed into an irreversible spinel structure.

TL;DR: In this paper, the authors systematically analyzed the reasons for the increase of the capacity that promoted by oxygen functional groups in charge∕discharge cycling tests and the mechanism how the pseudocapacitance is provided by the oxygen functional group in the acid/alkaline aqueous electrolyte.

TL;DR: In this paper, a simple wet chemical process followed by high temperature calcination has been successfully used to coat Li-ion conductive Li4Ti5O12 on the surface of Ni-rich LiNi0.8Co0.1O2.

TL;DR: In this paper, an electrochemical determination of copper(II), lead(II) and mercury (II) ions, using ethylenediaminetetraacetic acid (EDTA) chelating ligand modified polyaniline and singe walled carbon nanotubes (SWCNTs) based nanocomposite (PANI/SWNCTs).

TL;DR: In this paper, a core@shell structure of Co-Co3O4 core particles enclosed in a shell of carbon-nanotube (CNT)-incorporated nitrogen-doped carbon (hereafter abbreviated as CoCo 3O4@CNT-NC) was synthesized via simple pyrolysis of a melamine-formaldehyde (MF) resin and cobalt acetate composite in a N2 atmosphere, followed by oxidation with H2O2.

TL;DR: Li et al. as discussed by the authors developed a facile and low-cost strategy to fabricate a unique porous MnO@N-doped carbon nanotube and demonstrate its outstanding Li-storage properties as anode material for lithium ion batteries.

TL;DR: In this paper, a 3D interconnected ultrathin CoSe nanosheets with a large BET specific surface area, superior mesoporous structure and good electrical conductivity were used as superior battery-like electrode material for the first time.

TL;DR: In this article, the corrosion and electrochemical behavior of carefully prepared ultra-lightweight magnesium-lithium (Mg-Li) alloys were investigated and compared, and the alloy compositions studied were selected to provide the ability to compare unique microstructures and crystal structures, which arise from specific alloying additions of Li.

TL;DR: In this paper, a brief overview of surface engineering of the Ti-based alloys from the perspective of electrochemistry is given, which mainly focuses on three major electrochemical techniques: low voltage anodization, micro-arc oxidation, and electrodeposition.

TL;DR: In this paper, a high entropy alloy (HEA, Ni20Fe20Mo10Co35Cr15) with high corrosion resistance can be used as a stable electrocatalyst for the hydrogen evolution reaction in both acidic and basic electrolytes.

TL;DR: In this paper, the boundary of applicability of the Warburg model is defined and alternative models for cases beyond the boundary are developed, including diffusion impedance in porous electrodes and fractals, and the effect of electrostatic interactions and coupling between diffusion and migration on the diffusion impedance.

TL;DR: In this paper, a Zn-doped Ni-based metal-organic framework (Ni-MOF) material with honeycomb-like hierarchical spherical structure is synthesized by a microwave-assisted method using HCl as the modulator for the first time.

TL;DR: In this paper, the formation of cobalt metal organic frameworks (Co-MOFs) in different solvents and mixture is studied systematically through solvothermal method through X-ray diffraction, Field emission scanning electron microscope and Brunauer-Emmett-Teller surface analyzer to know about its crystal nature, morphology and porosity.

TL;DR: In this article, a homogeneously Al3+ doped Ni-rich cathode with high stable cycling performance and storage stability was constructed via scalable continuous precipitation, which showed more perfect sphere, decreased ratio of Ni2+/Ni3+ and Li+/Li2+ disorder in the internal of agglomerates.

TL;DR: In this article, the authors investigated the catalytic mechanisms of N2 to NH3 conversion on single Fe atom embedded in single vacancy and N-doped graphene and found an approximately linear scaling between the adsorption energy of N atom ( Δ E N* ) and Fe magnetic moment.

TL;DR: In this article, a layer-by-layer sandwiched graphene/Pani nanorods/carbon nanotubes (G/PANI/CNTs) heterostructure has been synthesized.

TL;DR: In this paper, the rate constants for irreversible electrochemical systems are estimated using cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) and compared to one another.

TL;DR: In this article, fast ionic conductor Li0.33La0.557TiO3 (LLTO) nanowires with high ionic conductivity were prepared through electrospinning and subsequent high temperature calcination.

TL;DR: A semi-quantitative analysis of various volatile species produced during the electrolysis of highly saline water (0.6 M NaCl) at BDD electrode has been conducted by differential electrochemical mass spectrometry (DEMS) using the dual thin layer flow through cell as mentioned in this paper.

TL;DR: In this article, bismuth oxychloride nanosheets-immobilized Ti3C2Tx MXene material (TCBOC) is synthesized by a facile and cost-effective chemical bath deposition (CBD) route.

TL;DR: A facile hydrothermal process using ammonia as a source of nitrogen and thiourea as a sulfur source to prepare N/S co-doped three dimensional (3D) graphene hydrogel (N/S-3DGH) for supercapacitor electrode application is reported in this paper.

TL;DR: In this paper, a NiO-CNT composite has been synthesized and its multifunctional electrochemical properties have been demonstrated by investigating the supercapacitive performance and the oxygen evolution reactivity.

TL;DR: In this paper, the authors proposed a novel structure MnO2/Ti3C2Tx hybrid nanocomposite by synergistically coupling one-dimensional (1D) MnO 2 nanoneedles with two-dimensional transition metal carbides with metallic conductivity and hydrophilic nature.