Materials and Structures Laboratory, Tokyo Institute of Technology, Nagatsuta-cho 4259-R3-33, Midori-ku, Yokohama, 226-8503, Japan.
ChemSusChem. 2012 Sep;5(9):1841-6. doi: 10.1002/cssc.201200010. Epub 2012 Jun 27.
SO₃H-bearing amorphous carbon prepared from polyvinyl chloride (PVC) is studied as a heterogeneous Brønsted acid catalyst. Sulfonation of partially carbonized PVC produces amorphous carbon consisting of small SO₃H-bearing carbon sheets linked by sp³ -based aliphatic hydrocarbons. This carbon material exhibits much higher catalytic performance in the hydrolysis of cellobiose than conventional heterogeneous Brønsted acid catalysts with SO₃H groups, including SO₃H-bearing amorphous carbon derived from cellulose. This can be attributed to a high density of SO₃H groups and the fast diffusion of reactants and products enabled by a flexible carbon network.
由聚氯乙烯（PVC）制备的含 SO₃H 的无定形碳被用作非均相 Brønsted 酸催化剂。部分碳化 PVC 的磺化反应生成由带 SO₃H 的小碳片组成的无定形碳，这些碳片通过 sp³ 基脂肪族碳氢化合物连接。与具有 SO₃H 基团的传统非均相 Brønsted 酸催化剂（包括源自纤维素的含 SO₃H 的无定形碳）相比，这种碳材料在纤维二糖的水解中表现出更高的催化性能。这归因于高密度的 SO₃H 基团和由柔性碳网络提供的反应物和产物的快速扩散。
