Lan-lan Fang, Qian Tao, Ming-fang Li, Ling-wen Liao, Dong Chen, Yan-xia Chen. Determination of the Real Surface Area of Palladium Electrode[J]. Chinese Journal of Chemical Physics , 2010, 23(5): 543-548. doi: 10.1088/1674-0068/23/05/543-548
Citation: Lan-lan Fang, Qian Tao, Ming-fang Li, Ling-wen Liao, Dong Chen, Yan-xia Chen. Determination of the Real Surface Area of Palladium Electrode[J]. Chinese Journal of Chemical Physics , 2010, 23(5): 543-548. doi: 10.1088/1674-0068/23/05/543-548

Determination of the Real Surface Area of Palladium Electrode

doi: 10.1088/1674-0068/23/05/543-548
Funds:  This work was supported by the one Hundred Tal-ents' Program of the Chinese Academy of Science, the National Natural Science Foundation of China (No.20773116), and 973 program from the Ministry of Science and Technology of China (No.2010CB923302).
  • Received Date: 2010-03-01
  • Four methods, including voltammetric measurement of double layer capacitance, surface oxides reduction, under potential deposition of Cu and carbon monoxide (CO) stripping have been applied to evaluate the real surface area of a polycrystalline Pd (pc-Pd) electrode. The results reveal that the second and third methods lead to consistent results with deviations below 5%. And from the determined double layer capacitance and CO stripping charge, it is deduced that the double layer capacity unit area is 23.1±0.4 μF/cm2 and the saturated CO adlayer should be ca. 0.66 ML in order to ensure that the real surface area as determined isconsistent with the other two techniques. The applicability as well as the attentions when applying these techniques for the determination of the real surface area of pc-Pd electrodes have been discussed.
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Determination of the Real Surface Area of Palladium Electrode

doi: 10.1088/1674-0068/23/05/543-548
Funds:  This work was supported by the one Hundred Tal-ents' Program of the Chinese Academy of Science, the National Natural Science Foundation of China (No.20773116), and 973 program from the Ministry of Science and Technology of China (No.2010CB923302).

Abstract: Four methods, including voltammetric measurement of double layer capacitance, surface oxides reduction, under potential deposition of Cu and carbon monoxide (CO) stripping have been applied to evaluate the real surface area of a polycrystalline Pd (pc-Pd) electrode. The results reveal that the second and third methods lead to consistent results with deviations below 5%. And from the determined double layer capacitance and CO stripping charge, it is deduced that the double layer capacity unit area is 23.1±0.4 μF/cm2 and the saturated CO adlayer should be ca. 0.66 ML in order to ensure that the real surface area as determined isconsistent with the other two techniques. The applicability as well as the attentions when applying these techniques for the determination of the real surface area of pc-Pd electrodes have been discussed.

Lan-lan Fang, Qian Tao, Ming-fang Li, Ling-wen Liao, Dong Chen, Yan-xia Chen. Determination of the Real Surface Area of Palladium Electrode[J]. Chinese Journal of Chemical Physics , 2010, 23(5): 543-548. doi: 10.1088/1674-0068/23/05/543-548
Citation: Lan-lan Fang, Qian Tao, Ming-fang Li, Ling-wen Liao, Dong Chen, Yan-xia Chen. Determination of the Real Surface Area of Palladium Electrode[J]. Chinese Journal of Chemical Physics , 2010, 23(5): 543-548. doi: 10.1088/1674-0068/23/05/543-548

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