27 research outputs found
MOF materials as therapeutic agents, drug carriers, imaging agents and biosensors in cancer biomedicine:Recent advances and perspectives
Synthesis of CuO nanostructures from Cu-based metal organic framework (MOF-199) for application as anode for Li-ion batteries
Synthesis, Characterization, Crystal Structure, and Hirshfeld Surface Analysis of Zinc, Cadmium, and Mercury Diphosphine Complexes; Precursors for Oxide Nanoparticles
Remote Tracking Gas Molecular via the Standalone-Like Nanosensor-Based Tele-Monitoring System
Enhanced Response of Metformin towards the Cancer Cells due to Synergism with Multi-walled Carbon Nanotubes in Photothermal Therapy
Effective charge separation in the rutile TiO2 nanorod-coupled α-Fe2O3 with exceptionally high visible activities
Metal organic framework-mediated synthesis of highly active and stable Fischer-Tropsch catalysts
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