Anodic oxidation of sodium formate and methanol on Pd and Pt electrodes in alkali: a comparative study. Issue 1 (February 2021)

• Record Type: Journal Article
• Authors: Bera, Kamal Kanti; Chakraborty, Malay; Bhattacharya, Swapan Kumar
• Is Part Of: IOP conference series. Volume 1080:Issue 1(2021)
• Publication Date: 2021-02
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/1080/1/012013
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Formate and methanol oxidation reaction (FOR and MOR)s are compared at room temperature on Pd and Pt electrodes in alkali. The onset potential and tafel slope for FOR on Pd are less by 0.203 V and 0.481 Vdec −1 than these on Pt electrode. The peak current densities on Pd are 15.8 and 144 times greater than that on Pt in MOR and FOR respectively. The greater catalytic activity of Pd in FOR is supported by the greater formation of carbonate as obtained from IR spectroscopic and chromatographic investigation of products. The equilibrium exchange current density on Pd for FOR and MOR are 52.3 and 2.3 times of the corresponding data on Pt electrode. Despite methanol provides greater steady current than formate, the latter is better fuel particularly on Pd electrode in respect to formation of carbonate and power development.