Showing papers in "Electrochimica Acta in 2015"

TL;DR: A MATLAB GUI toolbox is developed, which can be used to solve DRT regularization problems, and it is shown that applying RBF discretization for deconvolving the DRT problem can lead to faster numerical convergence rate as compared with that of PWL discretized only at error free situation.

TL;DR: In this paper, an unusual sheets-like primary activated carbon particles interconnected into three-dimensional micrometer-level large pores were prepared from a novel biomass named willow catkins (WCs) by KOH chemical activation process and used as electrode materials for supercapacitors.

TL;DR: In this article, a review of the general strategies for the design of innovative polymer electrolytes using poly(ionic liquid)s is presented, with a special attention given to the optimization of both the ionic monomer chemical structure and macromolecular architecture to achieve the highest possible polymer ionic conductivity.

TL;DR: In this article, a hierarchically porous Ni 3 S 2 nanorod array foam was successfully prepared through a simple hydrothermal process assisted by the pretreatment with HCl. The resulting hierarchical porous nanostructures exhibits excellent catalytic activity and stability towards both HER and OER with low overpotential of 200mV and 217mV at current density of 10mA cm −2 for HER and oER, respectively, which are among the best nonnoble metal HER/OER electrocatalysts reported in literatures.

TL;DR: In this paper, the usefulness of MgCo2O4 as a supercapacitor electrode is demonstrated and compared its performance with two other cobaltites, MnCo 2O4 and CuCo 2 O4.

TL;DR: In this article, a simple method using carbon black and polytetrafluoroethylene (PTFE) was firstly developed to modify graphite felt which was widely employed as cathode for electro-Fenton, improving the in situ production of H 2 O 2 by about 10.7 times at the optimum carbon black to PTFE mass ratio of 1:5.

TL;DR: One dimensional hierarchical CuCo 2 O 4 nanobelt-like architecture was synthesized via hydrothermal method as mentioned in this paper, and the synthesized nanomaterial was characterized using X-ray diffraction (XRD) analysis, field emission scanning electron microscopy (FESEM), and transmission electron microscope (TEM).

TL;DR: In this article, high-purity NiCo 2 S 4 mesoporous nanosheets prepared through utilizing CS 2 as novel sulfur source were fabricated as advanced electrode for electrochemical supercapacitors.

TL;DR: In this article, nitrogen and boron co-doped KOH-activated bamboo-derived carbon was used as a porous biomass carbon with utility as a supercapacitor electrode material.

TL;DR: In this article, a two-step reaction for preparing hydrogen evolution reaction (HER) electrodes composed of Pt nanoparticles and MoS2 nanosheets grown on carbon fibers is described.

TL;DR: In this paper, a Bayesian approach was used to extend the DRT regularization by considering frequency dependent oscillation levels, which is more robust with respect to both discontinuities and over smoothing than typical regularized DRT methods.

TL;DR: In this paper, a pyrolysis-based porous hard carbons (PSDHCs) were used as anodes of lithium/sodium batteries (LIBs/NIBs).

TL;DR: In this article, mesoporous NiCo2O4 nanoneedles were directly grown on three dimensional (3D) graphene-nickel foam which was prepared by chemical vapor deposition, labeled as NCO/GNF.

TL;DR: In this paper, a symmetric supercapacitor based on a-PFC 3, which is synthesized at the mass ratio of KOH to PF derived carbon (PFC) to be 3 during activation step, offers a specific capacitance of 297 ǫg −1 at current density of 1ǫ g −1 within potential range of #2-3#1ǫV using 1ǒ H 2 SO 4 electrolyte.

TL;DR: In this article, a reduced graphene oxide (RGO)-based nanocomposite of redox counterpart of the oxides of Cu(I)-Cu(II) pair for Faradaic reaction, Cu2O/CuO/RGO, was controllably synthesized through a facile, eco-friendly one-step hydrothermal-assisted redox reaction of elemental Cu and graphene oxide without the addition of any other reagents.

TL;DR: In this article, a facile hydrothermal synthesis of NiCo 2 S 4 nanotube arrays (NTAs) by simply treating the NiCo-precursor with Na 2 S solution based on the Kirkendall effect was demonstrated.

TL;DR: In this paper, the authors demonstrate a feasible and effective strategy to develop highperformance supercapacitors from waste biomass and also helps to understand the roles of heteroatom on the electrochemical performances of porous carbon electrodes.

TL;DR: In this article, pristine graphene (PG) was used to detect ascorbic acid (AA), dopamine (DA), and uric acid(UA), which is obtained by liquid phase exfoliation of graphite and characterized by X-ray photoelectron spectroscopy.

TL;DR: In this article, two-dimensional transition metal carbides (MXenes) were used as anode for Li-ion batteries to achieve a reversible capacity of 6.7 mAh/cm2 after 50 cycles.

TL;DR: In this paper, the role of branched polyethylenimine (PEI) as an effective electrolyte additive for suppressing dendritic formation during zinc electrodeposition from typical alkaline electrolytes used in secondary zinc batteries was investigated.

TL;DR: In this paper, a facile approach to synthesize nitrogen-doped porous carbon materials via a two-step fabrication process using the stem bark of broussonetia papyrifera (BP) as the biomass precursor is presented.

TL;DR: In this paper, a supercapacitor was fabricated by sandwiching a filter paper immersed in a sodium sulfate solution between two nickel foam electrodes coated with the PPy/GO/ZnO nanocomposite.

TL;DR: In this paper, novel conjugates of GQDs and gold nanoparticles (AuNPs) are synthesized and used for sensitive electrochemical detection of heavy metal ions (Hg2+ and Cu2+).

TL;DR: In this article, a series of composites with different loadings of graphene is synthesized and tested for its electrochemical properties, and the specific capacitance of the electrodes are evaluated from cyclic voltammetry (CV) studies.

TL;DR: In this article, the corrosion behavior of magnesium in chloride-containing aqueous environment was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) performed simultaneously with real-time hydrogen evolution measurements and optical imaging of the corroding surface.

TL;DR: In this paper, an electrochemical method for the degradation of chloramphenicol (CAP) in aqueous solution with a novel Al doped PbO2 electrode was presented.

TL;DR: In this article, the NiS2 nanosheets array on carbon cloth (NiS2 NA/CC) via sulfidization of its Ni(OH)2 NE/CC precursor was demonstrated.

TL;DR: In this article, a polybenzimidazole (PBI) membrane was used for vanadium redox flow batteries (VRFBs) and compared with the Nafion system.

TL;DR: In this article, the authors presented simultaneous determination of catechol (CC) and hydroquinone (HQ) using a new electrochemical sensor based on Fe3O4 functionalized graphene oxide-gold nanoparticle composite (AuNPs/Fe 3O4-APTES-GO).

TL;DR: MoS2-reduced graphene oxide (RGO) composites were synthesized via a facile microwave assisted reduction of graphene oxide in MoS2 precursor solution and subsequent annealing in N2/H2 atmosphere at 800°C for 2h as discussed by the authors.