▎ 摘　　要

NOVELTY - Preparing graphene-ruthenium formic acid hydrogen production catalyst comprises e.g. (i) dissolving 5-20 g nanoscale ruthenium chloride or ruthenium acetate in 150 ml deionized water, adding 10-20 ml (98%) formic acid and stirring well; (ii) adding the 0.1 mol/liter silver nitrate solution into the mixed solution and allowing to stand overnight to form silver chloride precipitation; (iii) obtaining ruthenium ion solution; (iv) dissolving nanoscale water-soluble graphene in water, adding dispersant, and dispersing; (v) adding the stirred ruthenium ion solution into the dispersed graphene solution, and dispersing to make suspension A; (vi) preparing 50 ml water, adding attachment and wetting auxiliary agent and stirring to make suspension B; (vii) stirring the suspension A-ruthenium ion-graphene solution in suspension B, and stirring the suspension C; and (viii) heating suspension C, adding the formic acid solution continuously and turning the solution into a wine red liquid. USE - The method is useful for preparing graphene-ruthenium formic acid hydrogen production catalyst is useful in higher power high temperature fuel cells (claimed). ADVANTAGE - The method is simple and easy. DETAILED DESCRIPTION - Preparing graphene-ruthenium formic acid hydrogen production catalyst comprises (i) dissolving 5-20 g nanoscale ruthenium chloride or ruthenium acetate in 150 ml deionized water, adding 10-20 ml (98%) formic acid and stirring well; (ii) adding the 0.1 mol/liter silver nitrate solution into the mixed solution and allowing to stand overnight to form silver chloride precipitation; (iii) carrying out step (ii) for 3-5 times to obtain ruthenium ion solution; (iv) dissolving 1-5 g nanoscale water-soluble graphene in 100 ml water, adding 0.5-2 g dispersant, and dispersing under an ultrasonic disperser; (v) adding the stirred ruthenium ion solution into the dispersed graphene solution, and dispersing under the ultrasonic wave continuously for 4-6 hours to make suspension A; (vi) preparing 50 ml water, adding 0.2g attachment auxiliary agent and 0.05-0.5 g wetting auxiliary agent, stirring fully for 30 minutes-2 hours to make suspension B; (vii) stirring the suspension A- ruthenium ion-graphene solution in the suspension B, and stirring the suspension C of the system fully at 6000-8000 revolutions/minute under the action of a high-speed disperser; and (viii) heating the suspension C to 110-150℃ in a three-hole flask, adding the formic acid solution continuously for about 3-4 hours and turning the solution into a wine red liquid. An INDEPENDENT CLAIM is also included for application of graphene-ruthenium formic acid hydrogen production catalyst, comprising (a) adding 3 liter catalyst into the pressure-resistant 15 Mpa reactor; (b) heating to 100-105℃ and adding 94% formic acid at a rate of 18ml/min; (c) producing a mixture of 30-40 liter hydrogen and carbon dioxide per minute; (d) removing carbon when becomes liquid after two condensations to obtain the purity of the remaining hydrogen is about greater than 95% which fully meets the use of 3KW high temperature fuel cells; (e) using the purified hydrogen to generate electricity through high-temperature fuel cells as a backup power source or as a mobile power station and (f) carrying out the same proportional amplification can meet the use of higher power high temperature fuel cells.