2015 Fiscal Year Research-status Report
Highly Porous BN-nanomembrane Foam for Water Cleaning and Gas Storage
| Project/Area Number |
15K18216
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
蒋 湘芬 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, NIMSポスドク研究員 (50750668)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | adsorbent / porous materials / boron nitride |
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| Outline of Annual Research Achievements |
Boron nitride (BN) nanomaterials are distinguished as the assembly of the chemical and thermal stabilities, high oxidative resistance, insulating, and high thermal conductivity. The project is aimed at the fabricating BN in nanoporous bulk materials and explorations on the adsorption based applications, e.g. adsorbent for hydrogen storage. During last fiscal year, as the primary studies, the microporous BN microbelt was explored as the capturer for dye molecules and the support for silver (Ag) nanoparticles in surface-enhanced Raman spectroscopy (SERS) (Nanoscale, 2015, 7, 18992). The abundant porosity gave the high adsorption capacity to accumulate the dye molecules from the solutions for enhancing the signals in SERS detection. As a result, the detection limit of the fabricated Ag/BN was improved by at least three orders of magnitude, showing the advantages of the porous structures in BN materials. Meanwhile, a bulk material of graphene, an electrical conductive counterpart of BN, was directed used the electrode materials for supercapacitor in organic electrolytes (Nano Energy, 2015, 16, 81). The supercapacitors showed a high energy density of 50 Wh/kg at the high maximum-power-density of 340 kW/kg. Furthermore, the porous BN nanomaterials with controlled porosities and surface area have been fabricated basically through the proposed procedure. We will further study the adsorption behaviors in hydrogen storage, water cleaning, etc.
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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. Some detailed parts were adjusted slightly based on the actual progress.
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| Strategy for Future Research Activity |
I will further study the relation between the adsorption behaviors and the structural properties. And hetero-atom doping will be also considered to enhance the adsorption performances.
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| Causes of Carryover |
A part of budget was remained because it took us some time to wait for the recovery of our furnace which was broken for several times. And cheaper precursors were found to work well in preparation of macroporous BN product. The remaining budget was requested to be spent for further improving, modifying the nanoporosity and testing surface functionalities of final BN product for enhanced adsorption performances, and spread our stuidies to academic community by joining international symposiums in H28.
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| Expenditure Plan for Carryover Budget |
The experimental consumables, chemicals, tests of surface properties, and travel expenses for academic symposiums.
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[Journal Article] Template-free synthesis of boron nitride foam-like porous monoliths and their high-end applications in water purification2016
Author(s)
Yanming Xue, Pengcheng Dai, Xiangfen Jiang, Xuebin Wang, Chao Zhang, Daiming Tang, Qunhong Weng, Xi Wang, Amir Pakdel, Chengchun Tang, Yoshio Bando, Dmitri Golberg
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Journal Title
Journal of Materials Chemistry A
Volume: 4
Pages: 1469-1478
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] Pollutant capturing SERS substrate: porous boron nitride microfibers with uniform silver nanoparticles decoration2015
Author(s)
Pengcheng Dai, Yanming Xue, Xuebin Wang, Qunhong Weng, Chao Zhang, Xiangfen Jiang, Daiming Tang, Xi Wang, Naoyuki Kawamoto, Yusuke Ide, Masanori Mitome, Dmitri Golberg, Yoshio Bando
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Journal Title
Nanoscale
Volume: 7
Pages: 18992-18997
DOI
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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