| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1747573 | Journal of the Energy Institute | 2016 | 5 Pages |
•When CeO2 is added to Au/C, onset potential shifts more 190 mV negatively.•CO remarkably poisons Pt/C and Au– CeO2 has great anti-poisoning effect on CO.•CO is a promoter for glycerol oxidation on Au–CeO2/C.
Glycerol has a very high value of onset potential on the Au/C, so it is difficult to be electrochemically oxidized on pure Au electrocatalyst. When CeO2 is added to the Au/C, the value of onset potential is more 190 mV shifted negatively and close to that on the E-TEK Pt/C. The results demonstrate that CO remarkably poisons the Pt/C catalyst and CO is a promoter for glycerol oxidation on the Au/C and Au–CeO2/C electrodes. In presence of CO, a current promotion from 7.5 mA cm−2 to 15.0 mA cm−2 on the Au–CeO2/C electrode, then the current slow decays to the same current without CO. The results show that Au–CeO2/C has great anti-poisoning effect on CO and is more stable catalyst than the E-TEK Pt/C for glycerol oxidation in presence of CO.
