Influence of composition on the activity of tungsten carbide gas diffusion hydrogen electrodes

✍ Scribed by I. Nikolov; M. Svata; L. Grigorov; T. Vitanov; Z. Zabransky

• Book ID: 103899342
• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 462 KB
• Volume: 3
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(78)80034-2

✦ Synopsis

Efforts were aimed at full utilization of tungsten carbide in double-layer electrodes operating on hydrogen in sulphuric acid. By varying the proportions of WC:PTFE:active carbon:NH4C1, a current density of 580 mA/g of the catalyst was obtained with an electrode consisting of 180 mg/cm2 WC, 14 mg/cm2 PTFE, 10 mg/cm2 carbon and 10 mg/cm2 NH*Cl at 350 mV (R.H.E. in the same solution) and 60 "C. The addition of NH,Cl as a pore forming agent had a beneficial effect on the activity of the electrodes. The electrodes had a service of 2000 hours.