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Graphene stirrer with designed movements:Targeting on environmental remediation and supercapacitor applications 被引量:2

Graphene stirrer with designed movements:Targeting on environmental remediation and supercapacitor applications
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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-Fe_3 O_4 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. 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-Fe_3 O_4 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.
出处 《Green Energy & Environment》 SCIE 2018年第1期86-96,共11页 绿色能源与环境(英文版)
基金 supported by Natural Science Foundation of SZU (Grant No. 2017004) Early Career Scheme of the Research Grants Council of Hong Kong SAR, China, under the Project No. CityU 109213 a Grant from the City University of Hong Kong (9610372)
关键词 Desinged movements Reduced graphene oxide Metal-organic framework FE3O4 STIRRER Desinged movements Reduced graphene oxide Metal-organic framework Fe_3O_4 Stirrer
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