▎ 摘　　要

NOVELTY - A catalyst composition comprises at least one heteropoly acid and reduced graphene oxide acid. USE - Catalyst composition is used for isomerization of paraffins (claimed). ADVANTAGE - The catalyst composition has excellent catalytic performance and improved selectivity of isomerization. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) production of the catalyst composition, which involves contacting heteropoly acid with reduced graphene oxide to obtain a solution (s1), stirring the solution (s1) to obtain a solution (s2), drying the solution (s2) to obtain a dried paste and calcining the dried paste to obtain a catalyst composition; and (2) isomerization of paraffins, which involves contacting paraffins and hydrogen with the composition comprising 9-91 (w/w)% heteropolyacid(s) and 9-91 (w/w)% reduced graphene oxide acid, based on the total weight of the composition in a reactor.