14 research outputs found
A Quasiclassical Trajectory Study of Product Rotational, Angular, and Projection Distributions in the OH + H2 → H2O + H Reaction
Quantum Dynamics of the Three-Dimensional F + H2 Reaction: Wavefunction Density Analysis
Kinetics and mechanism of electron transfer processes in a hydrogen peroxide—trispicolinatoruthenate(II) system
Reaction, Dissociation, and Energy Transfer as a Function of Initial State for H + H2 on an Accurate Ab Initio Potential Energy Surface
Current Problems and Future Prospects for Polyatomic Van der Waals Molecules and Small Clusters: Theory
Molecular engineering of a cobalt-based electrocatalytic nanomaterial for H2 evolution under fully aqueous conditions
International audienceThe viability of a hydrogen economy depends on the design of efficient catalytic systems based on earth-abundant elements. Innovative breakthroughs for hydrogen evolution based on molecular tetraimine cobalt compounds have appeared in the past decade. Here we show that such a diimine–dioxime cobalt catalyst can be grafted to the surface of a carbon nanotube electrode. The resulting electrocatalytic cathode material mediates H2 generation (55,000 turnovers in seven hours) from fully aqueous solutions at low-to-medium overpotentials. This material is remarkably stable, which allows extensive cycling with preservation of the grafted molecular complex, as shown by electrochemical studies, X-ray photoelectron spectroscopy and scanning electron microscopy. This clearly indicates that grafting provides an increased stability to these cobalt catalysts, and suggests the possible application of these materials in the development of technological device