2014 Fiscal Year Research-status Report
Novel 3D Architectures of Carbon-Nitrogen Nanosheets for Energy Conversion
| Project/Area Number |
26820322
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
王 学斌 独立行政法人物質・材料研究機構, その他部局等, 研究員 (20724628)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | グラフェン / ３次元構造体 / 蓄電器 / ナノシート |
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| Outline of Annual Research Achievements |
Graphene-analogous nanosheets are rising material stars, yet the common nanosheet powders have high contact resistance, weak porosity structure, and low surface area. Three dimensional designed structures of nanosheets are most desired to overcome such drawbacks and to deliver the unique properties of graphene-analogs to the macroscale; however their practical production remains insufficient. This project aims to develop novel three dimensional structures of carbon-nitrogen nanosheets by effective production and to study their applications in energy conversion, e.g. supercapacitors and lithium ion batteries.
We established a synthesis route, namely ammonium-assistant chemical blowing, to produce three dimensional strutted graphenes with low-nitrogen fraction in this year. The three dimensional architectures were applied as additive-free binder-free electrodes in supercapacitors, which realized high energy density of 50 Wh/kg at high power density (Nano Energy 2015, submitted). We will further push on the three dimensional strutted graphenes to other energy-related applications such as lithium ion batteries.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
The research in this project is basically conducted smoothly in plan. Parts of the research contents were slightly adjusted due to the real experimental progress. The total aim will be achieved in year H27.
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| Strategy for Future Research Activity |
I will further study the cost-effective synthesis for three dimensional structures of carbon-nitrogen nanosheets, and study the lithium ion batteries based on three dimensional strutted graphenes.
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| Causes of Carryover |
A little part of budgets were remained because there was no enough time to complete the experiments about improving the quality of our graphene products last year which was caused by the breakdown and repair of our furnaces. Such residual budgets are requested to be spent for completing the continuous improvement and modification of our products such as graphenes and their derivatives in H27, and for conferences to spread the study results to academic community. The requested budgets in H27 will be spent in plan for the application studies such as lithium ion batteries and supercapacitors based on graphenes and other materials.
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| Expenditure Plan for Carryover Budget |
The experimental consumables, chemicals and travel expenses for academic conferences.
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[Journal Article] Biomass-Directed Synthesis of 20 g High-Quality Boron Nitride Nanosheets for Thermoconductive Polymeric Composites2014
Author(s)
Xuebin Wang, Qunhong Weng, Xi Wang, Xia Li, Jun Zhang, Fei Liu, Xiangfen Jiang, Hongxuan Guo, Ningsheng Xu, Dmitri Golberg, Yoshio Bando
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Journal Title
ACS Nano
Volume: 8
Pages: 9081-9088
DOI
Peer Reviewed / Acknowledgement Compliant
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