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Updated: Jan 31, 2026

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
Published on: June 21, 2017
Bulk Ti nitride prepared from rutile TiO2 for its application as stimulation electrode in neuroscience
M Canillas1, B Moreno2, M Carballo-Vila3
1Instituto de Cerámica y Vidrio (ICV), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain.
Abstract:
Bulk titanium nitride (TiN) was synthesized by nitridation of TiO2 rutile substrates. TiN pellets were successfully achieved at 1100 °C in ammonia stream; these materials were characterized by the evaluation of their microstructure, surface, chemical composition and electrical and electrochemical properties, concluding that the synthesis promotes the creation of a TiNxOy surface, which shows high metallic conductivity (close to 102 S/cm) and a microstructure with micro- and nano-features. Electrochemical studies reveal high storage capacities which are delivered through an injection mechanism that involves the double charge layer and EIS show a high capacitive contribution to the mechanism. Neuron cell cultures assessed the biocompatibility of the sample prepared and put forward this material as a promising candidate for implantable stimulation electrode in neuroscience.
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