SiC Nanowires with Tunable Hydrophobicity/Hydrophilicity and Their Application as Nanofluids

被引：25

作者：

Chen, Junhong ^{[1
]}

Zhai, Famin ^{[1
]}

Liu, Meng ^{[1
]}

Hou, Xinmei ^{[2
]}

Chou, Kuo-Chih ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China

来源：

LANGMUIR | 2016年 / 32卷 / 23期

基金：

中国国家自然科学基金;

关键词：

ENHANCED THERMAL-CONDUCTIVITY; SILICON-CARBIDE; SURFACE MODIFICATION; DISPERSED WATER; TIO2; NANOSTRUCTURES; NANOPARTICLES; STABILITY; SUSPENSIONS; NANOFIBERS;

D O I：

10.1021/acs.langmuir.6b00430

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, several methods including HF, NaOH, TEOS, and PVP treatment were adopted to modify the wettability of silicon carbide (SiC) nanowires switching from hydrophobic to hydrophilic. The phase and microstructure investigated by XRD, FT-IR, XPS, TGA, SEM, and TEM demonstrated SiC nanowires switching from hydrophobic to hydrophilic due to the surface-tethered hydrophilic layer as well as increasing interspace between nanowires. Besides this, SiC nanowires with hydrophilicity may effectively improve the thermal conductivity of a fluid. The thermal conductivity of aqueous SiC nanowires after TEOS treatment with just 0.3 vol % was remarkably improved up to ca. 13.0%.

引用

页码：5909 / 5916

页数：8

共 58 条

[1] Nanodiamond Nanofluids for Enhanced Thermal Conductivity [J].

Branson, Blake T. ;

Beauchamp, Paul S. ;

Beam, Jeremiah C. ;

Lukehart, Charles M. ;

Davidson, Jim L. .

ACS NANO, 2013, 7 (04) :3183-3189

[2] Competition Between Steric Hindrance and Hydrogen Bonding in the Formation of Supramolecular Bottle Brush Polymers [J].

Catrouillet, Sylvain ;

Fonteneau, Cecile ;

Bouteiller, Laurent ;

Delorme, Nicolas ;

Nicol, Erwan ;

Nicolai, Taco ;

Pensec, Sandrine ;

Colombani, Olivier .

MACROMOLECULES, 2013, 46 (19) :7911-7919

[3] A Facile Synthesis of a Three-Dimensional Flexible 3C-SiC Sponge and Its Wettability [J].

Chen, Junhong ;

Liu, Wenna ;

Yang, Tao ;

Li, Bin ;

Su, Jindong ;

Hou, Xinmei ;

Chou, Kuo-Chih .

CRYSTAL GROWTH & DESIGN, 2014, 14 (09) :4624-4630

[4] Highly flexible and robust N-doped SiC nanoneedle field emitters [J].

Chen, Shanliang ;

Ying, Pengzhan ;

Wang, Lin ;

Wei, Guodong ;

Gao, Fengmei ;

Zheng, Jinju ;

Shang, Minhui ;

Yang, Zuobao ;

Yang, Weiyou ;

Wu, Tom .

NPG ASIA MATERIALS, 2015, 7 :e157-e157

[5]

Cho T, 2005, J IND ENG CHEM, V11, P400

[6] Anomalous thermal conductivity enhancement in nanotube suspensions [J].

Choi, SUS ;

Zhang, ZG ;

Yu, W ;

Lockwood, FE ;

Grulke, EA .

APPLIED PHYSICS LETTERS, 2001, 79 (14) :2252-2254

[7] Development and characterization of Al2Cu and Ag2Al nanoparticle dispersed water and ethylene glycol based nanofluid [J].

Chopkar, M. ;

Kumar, S. ;

Bhandari, D. R. ;

Das, P. K. ;

Manna, I. .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2007, 139 (2-3) :141-148

[8] Physical properties of SiC [J].

Choyke, WJ ;

Pensl, G .

MRS BULLETIN, 1997, 22 (03) :25-29

[9] Low-temperature synthesis of soluble and processable organic-capped anatase TiO2 nanorods [J].

Cozzoli, PD ;

Kornowski, A ;

Weller, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (47) :14539-14548

[10] Recent advances in the liquid-phase syntheses of inorganic nanoparticles [J].

Cushing, BL ;

Kolesnichenko, VL ;

O'Connor, CJ .

CHEMICAL REVIEWS, 2004, 104 (09) :3893-3946

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