Scalable Fabrication of Resilient SiC Nanowires Aerogels with Exceptional High-Temperature Stability

被引：91

作者：

Lu, De ^{[1
]}

Su, Lei ^{[1
]}

Wang, Hongjie ^{[1
]}

Niu, Min ^{[1
]}

Xu, Liang ^{[1
]}

Ma, Mingbo ^{[1
]}

Gao, Hongfei ^{[1
]}

Cai, Zhixin ^{[1
]}

Fan, Xingyu ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2019年 / 11卷 / 48期

基金：

中国国家自然科学基金;

关键词：

ceramic aerogels; scalable fabrication; resilience; high-temperature stability; fire erosion resistance; THERMAL-CONDUCTIVITY; OXYCARBIDE GLASSES; ULTRALIGHT; RESISTANT;

D O I：

10.1021/acsami.9b16811

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Resilient ceramic aerogels exhibit great potential for applications in harsh environments owing to their unique combination of ultrahigh porosity, lightweight, reversible compressibility, and good thermal and chemical stabilities. However, their applications are severely restricted by the limited size and low yield due to their complicated and time-consuming synthetic procedures. Herein, we developed an efficient method for large-scale production of resilient SiC nanowire aerogels (SiC NWAGs) with tunable densities and desired shapes. The as-synthesized SiC NWAGs displayed excellent high-temperature stability (the maximum working temperature in Ar and air can reach to 1400 and 1000 degrees C, respectively), outstanding flame-erosion resistance and low thermal conductivity (2S mW m(-1) K-1). The easy fabrication of such ceramic aerogel on a large scale will pave the way for the widespread applications of ceramic aerogels.

引用

页码：45338 / 45344

页数：7

共 42 条

[1] The properties of foams and lattices [J].

Ashby, MF .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2006, 364 (1838) :15-30

[2] STRUCTURAL CHARACTERIZATION OF SOL-GEL DERIVED OXYCARBIDE GLASSES .2. STUDY OF THE THERMAL-STABILITY OF THE SILICON OXYCARBIDE PHASE [J].

BOIS, L ;

MAQUET, J ;

BABONNEAU, F ;

BAHLOUL, D .

CHEMISTRY OF MATERIALS, 1995, 7 (05) :975-981

[3] Composite bending-dominated hollow nanolattices: A stiff, cyclable mechanical metamaterial [J].

Deng, Biwei ;

Xu, Rong ;

Zhao, Kejie ;

Lu, Yongfeng ;

Ganguli, Sabyasachi ;

Cheng, Gary J. .

MATERIALS TODAY, 2018, 21 (05) :467-474

[4] Ultralow Thermal Conductivity and Mechanical Resilience of Architected Nanolattices [J].

Dou, Nicholas G. ;

Jagt, Robert A. ;

Portela, Carlos M. ;

Greer, Julia R. ;

Minnich, Austin J. .

NANO LETTERS, 2018, 18 (08) :4755-4761

[5] Multifunctional Silica Nanotube Aerogels Inspired by Polar Bear Hair for Light Management and Thermal Insulation [J].

Du, Ai ;

Wang, Hongqiang ;

Zhou, Bin ;

Zhang, Chen ;

Wu, Xueling ;

Ge, Yingting ;

Niu, Tingting ;

Ji, Xiujie ;

Zhang, Ting ;

Zhang, Zhihua ;

Wu, Guangming ;

Shen, Jun .

CHEMISTRY OF MATERIALS, 2018, 30 (19) :6849-6857

[6]

Gao H., 2019, APPL SURF SCI

[7] Bioinspired Synthesis of Monolithic and Layered Aerogels [J].

Han, Xiao ;

Hassan, Khalil T. ;

Harvey, Alan ;

Kulijer, Dejan ;

Oila, Adrian ;

Hunt, Michael R. C. ;

Siller, Lidija .

ADVANCED MATERIALS, 2018, 30 (23)

[8] Aerogel applications [J].

Hrubesh, LW .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1998, 225 (1-3) :335-342

[9] Ultralight and Highly Compressible Graphene Aerogels [J].

Hu, Han ;

Zhao, Zongbin ;

Wan, Wubo ;

Gogotsi, Yury ;

Qiu, Jieshan .

ADVANCED MATERIALS, 2013, 25 (15) :2219-2223

[10]

Hüsing N, 1998, ANGEW CHEM INT EDIT, V37, P23, DOI 10.1002/(SICI)1521-3773(19980202)37:1/2<22::AID-ANIE22>3.0.CO

← 1 2 3 4 5 →