Proton exchange membrane fuel cell (PEMFC) has important implications for the success of clean transportation in future. One key factors affecting cost and performance PEMFC is cathode electrocatalyst oxygen reduction reaction (ORR) to overcome sluggish kinetics instability an acidic environment. As essential component electrocatalyst, support material largely determines activity, mass transfer...

Three mononuclear Schiff-base–Ni( ii ) complexes act as electrocatalyst for hydrogen evolution reaction using acetic acid and trifluoroacetic the substrates. With increase in chain length of ligand, efficiency catalyst decreases.

Nanoporous gold (NPG) with bi-continuous ligaments and pores structure has promising potential in functional applications, among which one prominent example is fuel cell electrocatalyst. However, current application of NPG is mostly limited to methanol electro-oxidation due to its weak catalytic performance. Here we report a simple chemical dealloying process, for generating peculiar three-dime...

We report a nickel complex containing a conjugated bis-dithiocarbazate ligand that is an active catalyst for the reduction of protons into hydrogen gas. Light-driven hydrogen generation is observed from a system containing this molecular nickel catalyst coupled with a fluorescein photosensitizer and triethylamine sacrificial donor. The photocatalytic system is stable for over 70 hours, achievin...

The purpose of this paper is to define needs for improved membrane and catalyst materials that would accelerate commercialization of Polymer Electrolyte Fuel Cells (PEFCs) in automobiles. Starting with system and cost considerations, we define targets for membrane operating temperature, conductivity vs. relative humidity, gas permeability, and water uptake. To consider the catalysts needs, we e...

The tris(2-pyridyl)phosphine oxide (Py3PO) complex [Ru(Py3PO)(bpy)(OH2)]2+ (bpy is 2,2'-bipyridine) is a pH-dependent water oxidation electrocatalyst that accelerates dramatically with increasing pH-up to 780 s-1 at pH 10 (∼1 V overpotential). Despite retaining the pentakis(pyridine) ligand arrangement common to previously reported catalysts, the tripodal Py3PO ligand framework supports much fa...

Developing efficient catalyst for oxygen evolution reaction (OER) is essential for rechargeable Li-O2 battery. In our present work, porous LaNiO3 nanocubes were employed as electrocatalyst in Li-O2 battery cell. The as-prepared battery showed excellent charging performance with significantly reduced overpotential (3.40 V). The synergistic effect of porous structure, large specific surface area ...

Ambient electroreduction of nitrogen (N2) is considered as a green and feasible approach for ammonia (NH3) synthesis, which urgently demands efficient electrocatalyst. Morphology has close relationship with catalytic activity heterogeneous catalysts. Nanoribbon attractive nanostructure, possesses the flexibility one-dimensional nanomaterials, large surface area two-dimensional lateral size conf...

Poly(2,5 dimethoxyaniline) and Platinum (PDMA@ Pt) nanocomposite electrode was fabricated by the electrochemical method. PDMA@ Pt nano electrocatalyst size is around 150-200 nm. having electrocatalytic activity towards methanol oxidation reaction.

Selenization of predeposited Pt on an rGO foil results in a freestanding electrocatalyst for the HER, achieving low overpotential 95 mV at ?10 mA cm ?2 .