A novel alcohol/iron (III) fuel cell
| Autor: | Xiaoping Liu, Huidong Nie, Guorong Xu, Xiulin Zhou, Tao Zou, Qingfeng Yi, Yuanyuan Zhang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Ethanol
Renewable Energy Sustainability and the Environment Inorganic chemistry Energy Engineering and Power Technology Alcohol 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Anode Catalysis Propanol chemistry.chemical_compound chemistry Alcohol oxidation Nafion Methanol Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Journal of Power Sources. 321:219-225 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2016.04.134 |
| Popis: | A novel alcohol fuel cell is constructed by using Fe 3+ as the oxidation agent instead of the conventional O 2 . Various alcohols as the fuels are tested, including methanol, ethanol, n -propanol and iso -propanol. In this fuel cell, the anode catalysts tested are PdSn/β-cd-CNT, PdSn/CNT, Pd/β-cd-CNT, Pd/CNT and Pd/β-cd-C, prepared by using multi-walled carbon nanotube (CNT) and carbon powder (C), as well as β-cyclodexdrin (β-cd) modified CNT (β-cd-CNT) and β-cd modified C (β-cd-C), as the substrates to immobilize PdSn and Pd nanoparticles in glycol solvent. The as-synthesized PdSn/β-cd-CNT catalyst presents significantly higher electroactivity for alcohol oxidation than the conventional Pd/C catalyst. Fe 3+ reduction reaction is carried out on the cathode made of carbon powder. The anolyte (alcohols in 1 mol L −1 NaOH) and catholyte (Fe 3+ in 0.5 mol L −1 NaCl) are separated with a Nafion 117 membrane. Open circuit voltage (OCV) of the cell with the anode PdSn/β-cd-CNT is 1.14–1.22 V, depending upon the used alcohol. The maximum power densities with methanol, ethanol, n -propanol and iso -propanol fuels are 15.2, 16.1, 19.9 and 12.2 mW cm −2 , respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect