▎ 摘　　要

NOVELTY - A composite carbon material (1) is obtained by alternately laminating graphene (2) and carbon nanoribbon (3). USE - Composite carbon material is used for forming electrode catalyst (all claimed). Can also be used for fuel cell, capacitor and exhaust gas purifying catalyst. ADVANTAGE - The composite carbon material has excellent specific surface area, and is economical. The electrode catalyst obtained using composite carbon material has excellent activity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) manufacture of composite carbon material, which involves reducing oxidized graphite and oxidized carbon nanoribbon and laminating reduced oxidized graphite and reduced carbon nanoribbon; (2) electrode catalyst, which consists of metal catalyst supported by composite carbon material; and (3) manufacture of electrode catalyst, which involves reducing oxidized graphite and oxidized carbon nano ribbon, laminating reduced oxidized graphite and reduced carbon nanoribbon and supporting by metal catalyst. DESCRIPTION OF DRAWING(S) - The drawing shows perspective view of composite carbon material. Composite carbon material (1) Graphene (2) Carbon nanoribbon (3)