Biomass-derived N-doped porous two-dimensional carbon nanosheets (NPCNs) with high surface area and pore volume were fabricated by using graphitic carbon nitride (g-C₃N₄) as both template and nitrogen source. The NPCNs were found to be promising supports to immobilize Ru nanoparticles (Ru/NPCNs), and Ru/NPCNs exhibit excellent catalytic performance for quinoline hydrogenation. 98.3% conversion and 96.1% selectivity were obtained within 3.5 h at 40 °C and 1 MPa H₂, which is far better than traditionally materials supported Ru catalysts. This work may provide a new choice for the synthesis of porous two-dimensional carbon nanosheets that can be used as catalyst support.

以石墨氮化碳（gC ₃ N ₄）作为模板和氮源，制备了具有高表面积和孔体积的生物质氮掺杂多孔二维碳纳米片（NPCN）。已发现NPCNs是固定Ru纳米颗粒（Ru / NPCNs）的有前途的支持者，Ru / NPCNs对喹啉加氢显示出优异的催化性能。在40°C和1 MPa H _{2的条件下}，在3.5 h内可实现98.3％的转化率和96.1％的选择性，远优于传统的负载型Ru催化剂。这项工作可能为合成可用作催化剂载体的多孔二维碳纳米片提供新的选择。