(DE19823881-A1)      A fuel composition for fuel cells comprises a solution containing water, alcohol(s) of formula CaHbOH where a is an integer 1 to 4 and carboxylic acid(s) of formula CcHd(COOH)f, where e is 1 to 3, f is 1 to 7 and g is 1 to 3. The alcohol concentration is 1-38 to 99.99 wt.% and the concentration of carboxylic acid is 0.01 to 20 wt.%. A fuel composition is also claimed which contains one or more of methanol, ethanol, n-propanol and n-butanol alcohols and one or more carboxylic acids from formic acid, acetic acid, acetic acid propanoic acid, butanoic acid and halogenated alkyl carboxylic acids. A fuel composition for fuel cells composed of water, methanol and formic acid is also claimed.    ADVANTAGE -   Proton transport within the porous anode of the fuel cell is improved without using mineral acids such as sulphuric acid which cause problems due to their highly corrosive nature.    (FR2764121-A1)      A fuel composition for fuel cells comprises a solution containing water, alcohol(s) of formula CaHbOH where a is an integer 1 to 4 and carboxylic acid(s) of formula CcHd(COOH)f, where e is 1 to 3, f is 1 to 7 and g is 1 to 3. The alcohol concentration is 1-38 to 99.99 wt.% and the concentration of carboxylic acid is 0.01 to 20 wt.%. A fuel composition is also claimed which contains one or more of methanol, ethanol, n-propanol and n-butanol alcohols and one or more carboxylic acids from formic acid, acetic acid, acetic acid propanoic acid, butanoic acid and halogenated alkyl carboxylic acids. A fuel composition for fuel cells composed of water, methanol and formic acid is also claimed.    ADVANTAGE -   Proton transport within the porous anode of the fuel cell is improved without using mineral acids such as sulphuric acid which cause problems due to their highly corrosive nature.    (GB2325937-B)      A fuel composition for fuel cells comprises a solution containing water, alcohol(s) of formula CaHbOH where a is an integer 1 to 4 and carboxylic acid(s) of formula CcHd(COOH)f, where e is 1 to 3, f is 1 to 7 and g is 1 to 3. The alcohol concentration is 1-38 to 99.99 wt.% and the concentration of carboxylic acid is 0.01 to 20 wt.%. A fuel composition is also claimed which contains one or more of methanol, ethanol, n-propanol and n-butanol alcohols and one or more carboxylic acids from formic acid, acetic acid, acetic acid propanoic acid, butanoic acid and halogenated alkyl carboxylic acids. A fuel composition for fuel cells composed of water, methanol and formic acid is also claimed.    ADVANTAGE -   Proton transport within the porous anode of the fuel cell is improved without using mineral acids such as sulphuric acid which cause problems due to their highly corrosive nature.    (US5904740-A)      A fuel composition for fuel cells comprises a solution containing water, alcohol(s) of formula CaHbOH where a is an integer 1 to 4 and carboxylic acid(s) of formula CcHd(COOH)f, where e is 1 to 3, f is 1 to 7 and g is 1 to 3. The alcohol concentration is 1-38 to 99.99 wt.% and the concentration of carboxylic acid is 0.01 to 20 wt.%. A fuel composition is also claimed which contains one or more of methanol, ethanol, n-propanol and n-butanol alcohols and one or more carboxylic acids from formic acid, acetic acid, acetic acid propanoic acid, butanoic acid and halogenated alkyl carboxylic acids. A fuel composition for fuel cells composed of water, methanol and formic acid is also claimed.    ADVANTAGE -   Proton transport within the porous anode of the fuel cell is improved without using mineral acids such as sulphuric acid which cause problems due to their highly corrosive nature.