基于Pickering乳液的石墨烯纳米带气凝胶制备及性能
Release Time:2019-11-01 Hits:
Indexed by: Journal Papers
Date of Publication: 2019-08-15
Journal: 新型炭材料
Included Journals: EI、PKU
Volume: 34
Issue: 4
Page Number: 358-366
ISSN: 1007-8827
Key Words: 石墨烯纳米带气凝胶;Pickering乳液;超弹;可压缩性;压阻特性
Abstract: 采用纳米碳管液相氧化开壁技术制备氧化石墨烯纳米带,以氧化石墨烯纳米带为前驱体,Pickering乳液为模板,聚醚胺(D400)为助剂和交联剂,制备孔径均匀可控的石墨烯纳米带气凝胶.采用光学显微镜、电子显微镜对乳液的形貌、粒径及气凝胶微观结构进行表征,研究乳液模板对石墨烯纳米带气凝胶结构和性质的影响.结果 表明,在乳液水油比为7∶1时,所得气凝胶具有均匀的孔结构、优异的可压缩性能,在应变50％的情况下,压缩1 000次后仍能恢复.当应变增大到95％时,循环50次依然能恢复原状.该气凝胶具有良好的压阻特性,气凝胶的电阻与形变之间有良好的线性对应关系,且与压缩速率无关.
Prev One:Gravity field-mediated synthesis of carbon-conjugated quantum dots with tunable defective density for enhanced triiodide reduction
Next One:Nitrogen-doped carbon nanotubes decorated with cobalt nanoparticles derived from zeolitic imidazolate framework-67 for highly efficient oxygen reduction reaction electrocatalysis