Effect of solvent on Se-modified ruthenium/carbon catalyst for oxygen reduction
Se-modified ruthenium supporting on carbon (Sex–Ru/C) electrocatalyst was prepared by solvothermal one-step synthesis method. The reaction mechanism was revealed after discussing impact of different solvents (i-propanol and EG) in solvotermal reaction. The result showed that the grain size of Se-mod...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2014-12-01
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| Series: | Progress in Natural Science: Materials International |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1002007114001361 |
| Summary: | Se-modified ruthenium supporting on carbon (Sex–Ru/C) electrocatalyst was prepared by solvothermal one-step synthesis method. The reaction mechanism was revealed after discussing impact of different solvents (i-propanol and EG) in solvotermal reaction. The result showed that the grain size of Se-modified ruthenium electrocatalyst was as small as 1 to 3 nm and highly dispersed on carbon surface. X-ray photoelectron spectroscopy (XPS) presented that selenium mainly existed in the catalyst in the form of elemental selenium and selenium oxides when the solvent was EG and i-propanol, respectively. The oxygen reduction reaction (ORR) performance was improved by appearance of selenium oxides. |
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| ISSN: | 1002-0071 |