文献类型：期刊文献

英文题名：Turning gelidium amansii residue into nitrogen-doped carbon nanofiber aerogel for enhanced multiple energy storage

作者：Li, Daohao[1] Wang, Yu[1] Sun, Yuanyuan[1] Lu, Yun[2] Chen, Shuai[3] Wang, Bingbing[1] Zhang, Huawei[4] Xia, Yanzhi[1] Yang, Dongjiang[1,5]

第一作者：Li, Daohao

通信作者：Yang, Dongjiang

机构：[1] Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China; [2] Department of Wood Anatomy and Utilization, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, 100091, China; [3] State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan, 030001, China; [4] College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, China; [5] Queensland Micro- and Nanotechnology Centre [QMNC], Griffith University, Nathan, Brisbane, Queensland, 4111, Australia

年份：2018

卷号：137

起止页码：31-40

外文期刊名：Carbon

收录：EI(收录号：20184606072047)

语种：英文

外文关键词：Energy storage - Porosity - Ammonia - Storage (materials) - Cellulose - Doping (additives) - Electrolytes - Nitrogen - Carbon nanofibers

摘要：Three-dimensional (3D) carbonaceous aerogels assembled by one-dimensional (1D) carbon nanofibers (CNF) have attracted much attention, because their unique interconnected and hierarchical porous structure can offer a wide range of applications in environmental remediation and energy storage. Herein, the residue of gelidium amansii (mainly endofibers, ～1.6 μm) after extraction of agar were used as precursor to fabricate nanofibrilated cellulose by using facile ultrosonication treatment. The nanofibrilated celluloses are highly engineered nanofibers with average diameter of ～90 nm. Then the 1D cellulose nanofibers could be assembled into 3D nanofiber aerogels after freeze drying. The subsequent pyrolysis in NH3 and activition could result in the formation of N-doped CNF areogel (N-PCNFA), where the oxygen-containing groups in cellulose macromolecules converted to H2O, CO, and CO2. The N-PCNFA with hierarchically porous structure, high surface area (2290 m2 g?1), N-doping, and 3D interconnected channels are beneficial to electrolyte ions and electron transportation. The N-PCNFA displayed high capacity and long-term stability as energy storage material. This work highlights a new strategy in highly efficient utilizing the marine biomass waste for developing low-cost and functional carbon aerogel for multiple energy storage. ? 2018 Elsevier Ltd