Development and Investigation on Electrodes of Noble Metal Coated by Ceramic Electrocatalyst

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Project title

Code/計畫編號

MOST106-2622-E019-004-CC3

Translated Name/計畫中文名

貴金屬電極披覆電觸媒陶瓷體之技術開發與特性研究

Project Coordinator/計畫主持人

Horng-Yi Chang

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Marine Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=12313162

Year

2017

Start date/計畫起

01-11-2017

Expected Completion/計畫迄

31-10-2018

Bugetid/研究經費

630千元

ResearchField/研究領域

材料科技

"本計畫協助製作生產燃料電池的廠商提升陰、陽電極之電觸媒活性，改善燃料電池效率，降低白金觸媒使用量與降低電池製作成本，並協助合作企業鼎佳能源公司建立阻抗量測系統。本計畫採用多元摻雜的(La0.75Sr0.2Ba0.05)0.175Ce0.825O1.891 (LSBC)的氧化鈰基陶瓷電觸媒，結合白金Pt，製作Pt-LSBC 核殼陽極；陰極採用Pr2NiO4 (PNO)電觸媒結合Pt 製作Pt-PNO 核殼陰極結構。燃料電池需要提供反應氣體、電子與離子導體（三相界區域TPB）的許多接觸點，以增加電化學反應活性位置的數目，本研究開發製作均勻核殼陰、陽電極粒子，可調整控制電極孔隙度、擴大TPB 面積與延伸TPB 微結構，達到少量Pt 加上陶瓷電觸媒即可有效率催化電極中傳送的反應氣體並維持其活性；同時建立複阻抗量測系統，評估陰、陽電極之電觸媒活性。""This proposal will help the fuel cell manufacturer to increase electrocatalytic activity of electrodes, to improve fuel cell performance, to reduce the amount of platinum (Pt) use and to lower the production cost. Additionally, the complex impedance analysis technique will be established and transferred to Toplus Energy Corp. The multi-doped electrocatalyst of (La0.75Sr0.2Ba0.05)0.175Ce0.825O1.891 (LSBC) is coated on Pt to form core-shell anode particles. The Pr2NiO4 (PNO) is coated on Pt to form core-shell cathode particles. Both Pt-LSBC and Pt-PNO core-shell particles are prepared by hydrothermal method. Those core-shell particles formed electrodes can provide more triple phase boundaries (TPB) for electrochemical reaction of gases, electrons and ions. The developed core-shell structure may modify electrode porosities, enlarge TPB reactive areas and extend the TPB paths. Therefore, coated ceramic electrocatalysts can reduce the using amount of Pt to increase the electrocatalytic activities and maintain the activity of Pt in the electrodes. The established complex impedance analysis system is utilized to evaluate the electrocatalytic activities of electrodes and fuel cell performance."

Keyword(s)

白金觸媒
陶瓷電觸媒
核殼電極結構
複阻抗
platinum catalyst
ceramic electrocatalyst
core-shell electrode structure
complex impedance

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Development and Investigation on Electrodes of Noble Metal Coated by Ceramic Electrocatalyst

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