-
Article
Facile Oxygen-promoted Synthesis of Cu, N Co-doped Carbon Composites for Oxygen Reduction
A new strategy to fabricate oxygen-promoted Cu,N co-doped carbon (OP-CuN@C) composites is reported. The strategy consists of only two simple steps: chemical polymerization and high temperature carbonization. E...
-
Article
Effects of Cracks on the Mass Transfer of Polymer Electrolyte Membrane Fuel Cell with High Performance Membrane Electrode Assembly
A two-dimensional geometric model is developed for a polymer electrolyte based on the liquid water penetration mechanism in the membrane electrode assemblies under the action of capillary pressure. The effects...
-
Article
Investigation of polyimide as an anode material for lithium-ion battery and its thermal safety behavior
As a type of a conjugate polymer with a reversible oxidizing-reducing property, polyimide is considered a representative polymer material for use as electrodes in lithium-ion batteries. Pyromellitic dianhydrid...
-
Article
Nitrogen Deficient Graphitic Carbon Nitride as Anodes for Lithium-ion Batteries
In order to overcome the problem that the low conductivity and high content of graphitic N will lead to serious irreversible capacity loss, magnesiothermic denitriding method was employed to fabricate nitrogen...
-
Article
Polyaniline-derived nitrogen- and oxygen-decorated hierarchical porous carbons as an efficient electrode material for supercapacitors
Polyaniline-derived oxygen- and nitrogen-decorated hierarchical porous carbons (N/O-HPC) are easily prepared by fast electrochemical polymerization combined with pyrolysis process. During the heating process, ...
-
Article
Hierarchically porous carbon with pentagon defects as highly efficient catalyst for oxygen reduction and oxygen evolution reactions
Highly dispersed electrocatalysts and single-atom catalysts receive extensive attention in the field of multiple reactions involving water spitting, oxygen reduction, and CO2 reduction. Herein, we develop a Fe/N ...
-
Article
Open AccessElectrochemical study of temperature and Nafion effects on interface property for oxygen reduction reaction
With the growth of new energy economy, proton exchange membrane fuel cell (PEMFC) has great potential to be success. However, the lack of high-performance catalyst layer (CL) especially at cathode limits its a...
-
Article
Degradation of Silicone Rubbers in Fenton’s Reagents
Gaskets are applied in PEMFCs (proton exchange membrane fuel cells) to keep reactant gases and liquid within their respective regions, which are of great significance for the both sealing and electrochemical p...
-
Article
Accelerated life-time test of MEA durability under vehicle operating conditions in PEM fuel cell
In this paper, a novel accelerated test method was proposed to analyze the durability of MEA, considering the actual operation of the fuel cell vehicle. The proposed method includes 7 working conditions: open ...
-
Article
Structure-dependent electrocatalytic activity of La1-x Sr x MnO3 for oxygen reduction reaction
The electrocatalytic activity toward oxygen reduction reaction is studied on the perovskite oxide La1-x Sr x MnO3, as prepared under different firing temperatures...
-
Article
Open AccessPhotoregenerative I−/I3− couple as a liquid cathode for proton exchange membrane fuel cell
A photoassisted oxygen reduction reaction (ORR) through I−/I3− redox couple was investigated for proton exchange membrane (PEM) fuel cell cathode reaction. The I−/I3−-based liquid cathode was used to replace conv...
-
Article
Open AccessProton conduction of polyAMPS brushes on titanate nanotubes
Proton conducting materials having reasonable proton conductivity at low humidification conditions are critical for decrease in system complexity and improvement of power density for polymer electrolyte membra...
-
Article
Open AccessDirect Transformation of Amorphous Silicon Carbide into Graphene under Low Temperature and Ambient Pressure
A large-scale availability of the graphene is critical to the successful application of graphene-based electronic devices. The growth of epitaxial graphene (EG) on insulating silicon carbide (SiC) surfaces has...
-
Article
SC-IrO2NR-carbon hybrid: A catalyst with high electrochemical stability for oxygen reduction
The enhanced electrochemical stability of the synthesized hybrid catalyst has been demonstrated by the introduction of the synergistic effect between carbon powder additive and the prepared catalyst. Single cr...
-
Article
Open AccessMechanochemical synthesis and high-capacity performances of transition-metal borides as aqueous anode materials
Transition-metal borides MB0.5 (M = Co, Mo, V) were synthesized by high-speed mechanical ball-milling of the corresponding elemental metals and boron, and investigated as aqueous anode materials. The as-synthesiz...
-
Article
Antioxidant Activities of Rapeseed Protein Hydrolysates
Rapeseed protein hydrolysates (RPH) were obtained by enzymatic hydrolysis of rapeseed protein using Alcalase 2.4 L FG. The degree of hydrolysis (DH) of RPH was about 25% using pH-stat method. The antioxidant a...
-
Article
Enhanced proton conductivity of polymer electrolyte membrane doped with titanate nanotubes
Nafion-titanate nanotubes composite membranes were prepared through a casting process. With the addition of 5 wt.%, the nanotubes were homogenously distributed in Nafion solution. The formed composite membrane...
-
Article
Promotion of catalytic activity for methanol electro-oxidation on CoPc-Pt/C co-catalysts
The catalytic activity for methanol electro-oxidation on CoPc-Pt/C co-catalysts, prepared by impregnation method, was studied in details through electrochemical methods. Cyclic voltammetry (CV) result demonstr...
-
Article
Nickel phthalocyanine-tetrasulfonic acid as a promoter of methanol electro-oxidation on Pt/C catalyst
This paper describes an investigation of the role of nickel phthalocyanine-tetrasulfonic acid (NiPcTs) for methanol electro-oxidation on a Pt/C catalyst. Cyclic voltammetry (CV) revealed that NiPcTs has no cat...
-
Article
Nafion/Silicon oxide composite membrane for high temperature proton exchange membrane fuel cell
Nafion/Silicon oxide composite membranes were produced via in situ sol-gel reaction of tetraethylorthosilicate (TEOS) in Nafion membranes. The physicochemical properties of the membranes were studied by FT-IR,TG-...
