Graphene stirrer with designed movements:Targeting on environmental remediation and supercapacitor applications

• 作者: Chunyi Zhi Fuwei Liu Hongfei Li Lei Wang Minshen Zhu Qi Xue Wei Chen Yan Huang Yang Huang Zengxia Pei Zifeng Wang
• 来源期刊: 绿色能源与环境：英文版
• 学科: 工学
• 年，卷（期）: 2018,（1）
• 页码范围: 86-96
• 页数: 11页
• 分类号: TQ127.11

摘要

Beyond the traditional focus on improvements in mechanical, electronic and absorption properties, controllability, actuation, and dynamic response of monoliths have received increasing attentions for practical applications. However, most of them could only realize simple response to constant conditions（e.g. a stationary magnetic field） while carrying out humdrum motions. By controlling distribution of metal organic framework obtained carbon-enriched Fe304 nanoparticles in self-assembly reduced graphene oxide（RGO） monoliths, we could achieve two distinctive RGO-Fe3 O4 stirrers that could dynamically respond to the rapidly changing magnetic field while executing designed movements precisely: rotating with lying down posture or standing straight posture. These stirrers can not only be applied in environmental remediation（e.g.suction skimmer）, but also be recycled as electrode active materials for supercapacitors after fulfilling their destiny, realizing transformation of trash to treasure, which will inspire other dynamically responsive monoliths for various applications.