A New Formic Acid/Iron Ion Fuel Cell

作者：Zou Tao; Yi Qingfeng^*; Zhang Yuanyuan; Deng Zhongliang; Lei Ming; Zhou Xiulin

来源：Chemical Journal of Chinese Universities, 2017, 38(1): 101-107.

DOI：10.7503/cjcu20160457

• Formic acid oxidation
• Palladium catalyst
• Iron ion cell
• Fuel cell

A new formic acid/iron ion (II) fuel cell was constructed with formic acid as the fuel and Fe3+ as oxidant-Multi. walled carbon nanotubes (MWCNTs) and beta-cyclodextrin (beta-CD) modified MWCNT (beta-CD-MWCNT)-supported palladium. based catalysts, PdSn/MWCNT, Pd/beta-CD. MWCNT and PdSn/beta-CD-MWCNT, were synthesized and used to electro-catalyze formic acid oxidation. Cyclic voltammograms (CVs) and chronoamperograms (CAs) were applied to investigate the electroactivity of the catalysts for formic acid oxidation in alkaline media. The results showed that addition of suitable amount of tin to palladium and modification of MWCNT with beta-CD can promote electrocatalytic activity of Pd/MWCNT catalyst for formic acid oxidation. The formic acid/iron ion (II) fuel cell with the prepared Pd-based catalysts as anode and carbon powder as cathode presents the open circuit voltage of 0.98-1.20 V. The fuel cell with PdSn/beta-CD-MWCNT as anode exhibits the maximum current density of 50 mA/cm(2) and the maximum power density of 12. 6 mW/cm(2),

• 单位
  湖南科技大学