کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1272137 | 1497479 | 2014 | 6 صفحه PDF | دانلود رایگان |
• CoP nanoparticles film on carbon cloth (CoP NPs/CC) was derived from Co NPs/CC.
• CoP NPs/CC acts as an acid-stable hydrogen evolution cathode with superior activity.
• CoP NPs/CC exhibits long-term electrochemical stability.
In this communication, cobalt phosphide nanoparticles film was developed on carbon cloth (CoP NPs/CC) through low-temperature phosphidation of its corresponding Co NPs/CC precursor. When directly used as a cathode for electrochemical hydrogen evolution in strongly acidic solutions, the CoP NPs/CC electrode exhibits high performance with a low onset overpotential of 33 mV, a Tafel slope of 70 mV dec−1 and a Faradaic efficiency of nearly 100%. This catalyst maintain its catalytic activity for at least 30 h and only needs overpotentials of 48 and 190 mV to attain current densities of 10 and 100 mA cm−2, respectively.
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 30, 13 October 2014, Pages 16806–16811