Paunovic, Perica and Popovski, Orce (2006) Improvement of performances of complex non-platinum electrode materials for hydrogen evolution. Electrochimica Acta (52). pp. 1810-1817.
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Abstract
Abstract
Structural and electrochemical characteristics of hypo–hyper d-electrocatalytic materials aimed for preparation of electrodes for hydrogen
evolution were studied and modified in order to improve their performances. All studied materials were of general composition 10% Ni + 18%
TiO2 +C.
All materials were prepared of amorphous or crystalline TiO2, crystalline Ni or NiCo (10–20 nm) and Vulcan XC-72, by sol–gel procedure.
Both, material’s intrinsic catalytic activity and surface area were affected by applied modifications. As a result, the electrocatalytic activity
was improved, e.g. transformation of TiO2 into anatase form lowers the HER overpotential for 60mV. Introduction of MWCNTs was even more
effective, lowering η for 120mV. Co addition to metallic phase lowers η for utmost 195mV.
Combined modification of TiO2 and carbon substrate lowers η for 145mV, while the complete modification of all three catalyst’s components
was the most effective with 230mV decrease of overpotential.
© 2006 Elsevier Ltd. All rights reserved.
Keywords: Hydrogen evolution; Hypo–hyper d-electrocatalysts; Non-platinum metals
| Item Type: | Article |
|---|---|
| Subjects: | Engineering and Technology > Nano-technology |
| Divisions: | Military Academy |
| Depositing User: | Orce Popovski |
| Date Deposited: | 21 Jan 2013 15:03 |
| Last Modified: | 07 Oct 2013 10:10 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/4750 |
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