Effects of Foreign Elements Added Oxide-Based Electrocatalyst for Oxygen Reduction Reaction as Non-Precious Metel Cathodes
Effects of Foreign Elements Added Oxide-Based Electrocatalyst for Oxygen Reduction Reaction as Non-Precious Metel Cathodes
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添加外来元素的氧化物基电催化剂对非贵金属阴极氧还原反应的影响
DOI：
10.1149/10807.0181ecst
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Ishihara Akimitsu
中科院分区：
文献类型：
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作者：
Matsuzawa Koichi;Obata Momo;Takeuchi Yuu;Ohgi Yoshiro;Ikegami Kaoru;Nagai Takaaki;Monden Ryuji;Ishihara Akimitsu
为了研究外源元素和碳纳米管的加入对ORR活性的影响，以氧钛四吡嗪卟啉为前驱体制备了氧化钛基电催化剂，并对其电化学特性进行了评价。添加铁的氧化钛基电催化剂（Fe-TiOx、FeZn-TiOx和FeNiZn-TiOx）比未添加铁的电催化剂的OER活性更高。此外，在碳纳米管（CNT）上负载的上述催化剂粉末比没有负载的催化剂粉末具有更高的OER活性。与未添加任何外来元素的样品相比，添加外来元素有助于形成更高质量的ORR活性位点。碳纳米管可以有效地提高钛基电催化剂粉末的比表面积。
In order to investigate the addition effect of foreign element and CNT on the ORR activity, Ti oxide-based electrocatalysts were prepared from precursors originated from oxy-titanium tetrapyrazino-porphyrazine and evaluated its electrochemical characteristic. The Ti oxide-based electrocatalyst with Fe-based addition (Fe-TiOx, FeZn-TiOx, and FeNiZn-TiOx) has enhanced OER activity than that without any addition. Moreover, above catalyst powder supported on carbon nanotube (CNT) reached higher OER activity than that without any support. Foreign element addition can contribute to form higher quality of active site of ORR compared to the sample without any addition. The CNT would be effective for enhance surface area of Ti oxide-based electrocatalyst powder.