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

[41]

Reddy JD, 2008, MATER RES SOC SYMP P, V1049, P41

[42] Surface Modification Approach to TiO2 Nanofluids with High Particle Concentration, Low Viscosity, and Electrochemical Activity [J].

Sen, Sujat ;

Govindarajan, Vijay ;

Pelliccione, Christopher J. ;

Wang, Jie ;

Miller, Dean J. ;

Timofeeva, Elena V. .

ACS APPLIED MATERIALS & INTERFACES, 2015, 7 (37) :20538-20547

[43] An investigation of silicon carbide-water nanofluid for heat transfer applications [J].

Singh, D. ;

Timofeeva, E. ;

Yu, W. ;

Routbort, J. ;

France, D. ;

Smith, D. ;

Lopez-Cepero, J. M. .

JOURNAL OF APPLIED PHYSICS, 2009, 105 (06)

[44] Micromechanical properties of silicon-carbide thin films deposited using single-source chemical-vapor deposition [J].

Stoldt, CR ;

Fritz, MC ;

Carraro, C ;

Maboudian, R .

APPLIED PHYSICS LETTERS, 2001, 79 (03) :347-349

[45] A low-temperature CVD process for silicon carbide MEMS [J].

Stoldt, CR ;

Carraro, C ;

Ashurst, WR ;

Gao, D ;

Howe, RT ;

Maboudian, R .

SENSORS AND ACTUATORS A-PHYSICAL, 2002, 97-8 :410-415

[46] Study of surface modification of nano-SiO2 with macromolecular coupling agent (LMPB-g-MAH) [J].

Tai, Yanlong ;

Qian, Jiasheng ;

Zhang, Yuchuan ;

Huang, Jinde .

CHEMICAL ENGINEERING JOURNAL, 2008, 141 (1-3) :354-361

[47] Particle size and interfacial effects on thermo-physical and heat transfer characteristics of water-based α-SiC nanofluids [J].

Timofeeva, Elena V. ;

Smith, David S. ;

Yu, Wenhua ;

France, David M. ;

Singh, Dileep ;

Routbort, Jules L. .

NANOTECHNOLOGY, 2010, 21 (21)

[48] Nanobeam mechanics: Elasticity, strength, and toughness of nanorods and nanotubes [J].

Wong, EW ;

Sheehan, PE ;

Lieber, CM .

SCIENCE, 1997, 277 (5334) :1971-1975

[49] Effects of surfactant on the stability and thermal conductivity of Al2O3/de-ionized water nanofluids [J].

Xia, Guodong ;

Jiang, Huanming ;

Liu, Ran ;

Zhai, Yuling .

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2014, 84 :118-124

[50] Thermal conductivity of suspensions containing nanosized SiC particles [J].

Xie, H ;

Wang, J ;

Xi, T ;

Liu, Y .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2002, 23 (02) :571-580

← 1 2 3 4 5 6 →