Showing papers in "Electrochimica Acta in 2019"

TL;DR: In this article, the authors fabricated porous hollow carbon spheres with different morphologies and electrochemical properties using yeast cell templates, and the as-prepared sample exhibited an ultrahigh specific capacitance of 255 F g 1 at a current density 1 A g 1 in 1 M Na2SO4 electrolyte.

TL;DR: In this article, a 3D core-shell Fe3O4/PANI coaxial heterogeneous nanonets were fabricated via magnetic field induced self-assembly and in situ polymerization.

TL;DR: In this article, dual-doped graphene sheets (SiBCN/NSGs) were designed and synthesized by inserting pyrolyzed NSGs into the polymer derived SiBCN via ball ball ball milling technique and their feasibility to serve as lithium ion battery anode was tested.

TL;DR: In this article, ultrathin δ-MnO2 nanosheets were synthesized via in-situ reduction of KMnO4 on graphene oxide using graphene oxide as both reductant and self-sacrificing template.

TL;DR: In this article, a promising sensing platform for the detection of dopamine (DA) has been constructed using MnO2 nanowires-electrochemically reduced graphene oxide modified glassy carbon electrode (MnO2 NWs-ErGO/GCE).

TL;DR: In this article, the hierarchical NiCo2S4@CoS2 nanostructures were fabricated on highly conductive flexible carbon cloth (CC) via two-steps hydrothermal method for high-performance supercapacitor hybrid electrode material.

TL;DR: In this article, a hierarchical core-shell hollow iron-cobalt sulfides nanoarrays supported on conductive nickel foam (Fe-Co-S/NF) were fabricated using metal-organic frameworks (MOFs) as the sacrificial templates.

TL;DR: PNGV and the exact algorithms are an ideal combination in the low SOC area and in the high SOC area, and PSO is an ideal identification algorithm for second-order RC models.

TL;DR: The PANI@CNF nanocomplexes are firstly prepared via in situ polymerization of anilines on CNFs, which are then evenly distributed into borax-crosslinked polyvinyl alcohol (PVA) gel system to fabricate free-standing PANI-PVA composite ECHs as discussed by the authors.

TL;DR: In this article, potato biomass porous carbon (PBPC) was used as the anode material for potassium-ion batteries (KIBs) and the crystal structure and mesoporous morphology of the carbon derivative at various carbonation temperatures were fully investigated.

TL;DR: In this article, the authors synthesized hollow spheres for high performance cathode of aqueous rechargeable zinc ion batteries (ARZIBs) using solvothermal method.

TL;DR: In this article, a detailed analysis of the electrochemical impedance spectra obtained for the Mg electrode during immersion in a sodium sulfate solution is presented, where various parameters are extracted such as the thin oxide film thickness, the resistivity at the metal/oxide film interface and at the oxide film/electrolyte interface, the active surface area as a function of the exposure time to the electrolyte, the thickness of the thick Mg(OH)2 layer and the kinetic constants of electrochemical reaction.

TL;DR: In this article, the performance of Pd/Pt-based electrocatalysts is closely correlated with their surface structure, size and composition, and uniformly distributed ultra-small PtPd alloyed nanoparticles (PtPd ANPs, ∼5 nm) within a robust three-dimensional nitrogen-doped reduced graphene oxide (3D-N-rGO) under hydrothermal conditions.

TL;DR: In this paper, a zinc ion and proton insertion mechanism is proposed by exploring the evolutions of the phase and morphology of the Zn/VOH battery and verified by different zinc salt electrolytes.

TL;DR: In this paper, a facile method for controllable synthesis of hierarchical shell-core structures by anchoring NiO nanospines on concave spherical carbon particles is reported.

TL;DR: In this paper, the effects of the membrane-electrode assembly (MEA) fabrication method, operating conditions, and MEA parameters were examined to enhance AEMWE performance.

TL;DR: In this paper, the synthesis of homogeneous nickel oxide/manganese dioxide nanoparticles (NiO/MnO2 NPs) supported on reduced graphene oxide nanosheets (rGO NSs) for supercapacitors application was presented.

TL;DR: In this paper, a template-free synthesis of pure and Co-doped ZrO2 tetragonal structured nanoparticles was achieved by the hydrothermal method and their photocatalytic, photoelectrocatalytic and electrochemical energy storage supercapacitive properties were investigated for the first time.

TL;DR: In this article, a mesoporous carbon containing dispersed FeNx species is prepared and tested as an ORR and OER bifunctional catalyst for Zn-air batteries.

TL;DR: In this paper, a new family of hybrid inorganic-organic membranes, called [SPEEK/(WO3)x] is presented, consisting of a sulfonated poly (ether ether ketone) (SPEEK) matrix hosting between 0 and 23.6% of WO3 nanoparticles.

TL;DR: In this paper, a glassy carbon electrode (GCE) coated with poly(amidoamine) dendrimer functionalized magnetic graphene oxide (GO-Fe3O4-PAMAM) was applied for the simultaneous detection of Pb (II) and Cd(II) in environmental waters.

TL;DR: In this article, a facile, robust and cost-effective co-precipitation method was employed to develop NiCo2O4 (NCO) hexagonal nanostructures for effective positive electrode in asymmetric supercapacitors.

TL;DR: In this paper, a self-supported three-dimensional hierarchical core-shell NiCoP@NiCoP/CC electrode has been fabricated by a two-step hydrothermal and a phosphorization method.

TL;DR: In this paper, a facile and inexpensive strategy to synthesize loofah-derived pseudo-graphite (LPG) through alkali treatment process followed by a one-step pyrolysis procedure was reported.

TL;DR: In this article, a facile hydrothermal method of different precipitants was used to synthesize NiFe2O4 (NFO4) with different morphologies.

TL;DR: In this article, a nitrogen, sulfur-codoped hierarchically porous carbon (RPHPC) with inherited morphology/microstructure derived from rape pollen is fabricated by direct activation of rape pollen with mixed salts of ZnCl2 and FeCl3 for supercapacitors.

TL;DR: In this article, the authors reported the successful deposition of amorphous Mn-Co-Fe ternary hydroxide nanoplatelets directly on Ni foam without the need for any binders.

TL;DR: In this paper, a flexible solid-state supercapacitor based on PEDOT/PANi hydrogel was proposed, which achieved a high volumetric energy density of 0.25mWh cm−3 at a power density of 107.14mW

TL;DR: In this paper, a composite electrode comprised of 2D delaminated Ti3C2 sheets and 3D Ni foam was fabricated by electrostatic self-assembly, which exhibited high specific capacitance up to 654'F'g−1 at 1'A'g −1 and good cycling stability.

TL;DR: In this paper, a metal organic framework with dual metal centers (Ni-Co-MOF) was directly grown on graphene oxide sheets via a one-pot solvothermal reaction and used as a hybrid supercapacitor electrode.