文化治理与社群自治——以网络耽美社群为例

国内学界通常将文化治理理解为国家主导的多元共治的管理模式。然而,在共治模式之外,还存在着社群自治模式。网络耽美社群通过构建社群共识、开展舆论监督和仲裁、协商道德准则等多种方式来维护社群的良性发展。网络耽美社群的自治模式,不仅揭示了新媒体时代中国社会日益复杂的权力分配格局,也为当代文化治理提供了一个有益的另类参考。中央高校基本科研业务费专项资金资助(0640-ZK1079);; 2015年度福建省社会科学规划项目资助(FJ2015B136

Synthesis of LiFePO4/C Cathode by Sol-gel and Calcining Method with Chitosan Monomer

本文以壳聚糖单体为碳源兼凝胶剂，利用溶胶-凝胶煅烧合成了锂离子电池LiFePO4/C正极材料，使用XRD和SEM对合成的材料进行表征. 用恒电流充放电测试了LiFePO4/C电极的电化学性能，当壳聚糖单体与LiFePO4摩尔比为1:1.2时，600 oC煅烧的LiFePO4/C电极性能最佳，其粒径分布均匀（200 ～ 400 nm），该电极0.2C倍率放电比容量为155 mAh.g-1，30周期循环放电比容量仍保持152 mAh.g-1，库仑效率为97.9 %.The LiFePO4/C cathode materials for Li-ion battery were synthesized by sol-gel and calcining method using chitosan monomer as a carbon source and a gelating agent. The structures and morphologies were characterized by X-ray diffraction spectroscopy (XRD) and scanning electron microscopy (SEM). The electrochemical performance was investigated by the galvanostatic charge–discharge test. When the molar ratios between chitosan monomer and LiFePO4 were 1:1.2, the LiFePO4/C cathode calcined at 600 oC showed the best performance. The particle sizes ranged 200 ～ 400 nm. The initial discharge capacity of 155 mAh.g-1 was achieved at room temperature with discharge rate of 0.2C, while the capacity of 152 mAh.g-1 could be maintained after 30 charge-discharge cycles. The coulombic efficiency was 97.9%.国家自然科学基金项目（No. 20973048）资助作者联系地址：1. 哈尔滨工程大学材料科学与化学工程学院，黑龙江 哈尔滨 150001；2. 哈药集团三精制药有限公司，黑龙江 哈尔滨，150069Author's Address: 1. College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; 2. Harbin Pharm. Group Sanjing Pharmaceutical Shareholding Co., Ltd, Harbin 150069, China通讯作者E-mail：[email protected]