Enhancement of Oxygen Reduction Activity of Fe-added Zirconium Oxide Electrocatalysts without Conductive Supports in Sulfuric Acid
Fe-added zirconium oxide electrocatalyst was synthesized using pyrazine carboxylic acid for catalyzing oxygen reduction reactions (ORR) in acidic media. The optimization of the Fe-additive ratio led to the highest onset potential of 0.917 V for ORR at −10 mA gcat−1 compared to that of previous studi...
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| Veröffentlicht in: | Chemistry letters 2022-09, Vol.51 (9), p.927-931 |
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| container_title | Chemistry letters |
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| creator | Takeuchi, Yuu Watanabe, Keita Matsuzawa, Koichi Nagai, Takaaki Ikegami, Kaoru Monden, Ryuji Ishihara, Akimitsu |
| description | Fe-added zirconium oxide electrocatalyst was synthesized using pyrazine carboxylic acid for catalyzing oxygen reduction reactions (ORR) in acidic media. The optimization of the Fe-additive ratio led to the highest onset potential of 0.917 V for ORR at −10 mA gcat−1 compared to that of previous studies. The high ORR activity was due to the formation of high-quality active sites with Fe addition in monoclinic ZrO2 and a suitable electron supply path created through carbon deposited using a pyrazine carboxylic acid complex. |
| doi_str_mv | 10.1246/cl.220283 |
| format | Article |
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The optimization of the Fe-additive ratio led to the highest onset potential of 0.917 V for ORR at −10 mA gcat−1 compared to that of previous studies. 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| fulltext | fulltext |
| identifier | ISSN: 0366-7022 |
| ispartof | Chemistry letters, 2022-09, Vol.51 (9), p.927-931 |
| issn | 0366-7022 1348-0715 |
| language | eng |
| recordid | cdi_proquest_journals_2720116973 |
| source | Oxford University Press Journals All Titles (1996-Current) |
| subjects | Carboxylic acids Chemical reactions Chemical reduction Electrocatalysts Iron Optimization Oxygen reduction reactions Sulfuric acid Zirconium dioxide Zirconium oxides |
| title | Enhancement of Oxygen Reduction Activity of Fe-added Zirconium Oxide Electrocatalysts without Conductive Supports in Sulfuric Acid |
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