This study is concerned with the hydrogen evolution reaction (HER) in several PTFE bonded Raney-Ni electrodes as function of temperature and treatments. The Mo-doped Raney-Ni catalysts are activated by hours of long cathodic polarization interleaved with few deep “charge e discharge” (polarity reversal) cycles. Moreover, the HER efficiency of the electrode requires additives which enhance conductivity and surface properties: with powders of Ni alloys (NieTi, NieCr, NieFe) the electrode becomes also more stable, and almost insensitive to polarity reversal.
Hydrogen evolution reaction in PTFE bonded Raney-Ni electrodes
BRUNI, GIOVANNA;MARINI, AMEDEO;MILANESE, CHIARA
2009-01-01
Abstract
This study is concerned with the hydrogen evolution reaction (HER) in several PTFE bonded Raney-Ni electrodes as function of temperature and treatments. The Mo-doped Raney-Ni catalysts are activated by hours of long cathodic polarization interleaved with few deep “charge e discharge” (polarity reversal) cycles. Moreover, the HER efficiency of the electrode requires additives which enhance conductivity and surface properties: with powders of Ni alloys (NieTi, NieCr, NieFe) the electrode becomes also more stable, and almost insensitive to polarity reversal.File in questo prodotto:
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