Kang, S Lee, J Lee, JK Chung, SY Tak, Y 2024-01-21T03:06:08Z 2024-01-21T03:06:08Z 2021-09-01 2006-04-13 1520-6106 https://pubs.kist.re.kr/handle/201004/135587 The influence of Bi modification of Pt anode catalyst on the performance of direct formic acid fuel cells was investigated. Compared with the unmodified Pt anode, the Bi modified Pt (PtBim) electrode prepared by under-potential deposition (UPD) caused faster electrocatalytic oxidation of formic acid at the same value of the overpotential, and thus, PtBi resulted in an increase in the power performance of direct formic acid fuel cells. Electrochemical impedance spectra helped to explain the difference of performance between the unmodified Pt and Bi modified Pt electrodes. Solution conductivity and dehydration phenomena occurring in highly concentrated formic acid solutions can also explain the higher power performance of PtBim. English AMER CHEMICAL SOC OXIDATION HCOOH OSCILLATIONS ADSORPTION CROSSOVER ELECTRODE MIXTURES BEHAVIOR ADATOMS Influence of Bi modification of Pt anode catalyst in direct formic acid fuel cells Article 10.1021/jp056753v 1 JOURNAL OF PHYSICAL CHEMISTRY B, v.110, no.14, pp.7270 - 7274 JOURNAL OF PHYSICAL CHEMISTRY B 110 14 7270 7274 scie scopus 000236772900031 2-s2.0-33646244043 Chemistry, Physical Chemistry Article OXIDATION HCOOH OSCILLATIONS ADSORPTION CROSSOVER ELECTRODE MIXTURES BEHAVIOR ADATOMS