Pt-Al2O3 nanocoatings for high temperature concentrated solar thermal power applications

被引：89
|
作者：
Nuru, Zebib Y. [1 ,2 ,3 ]
Arendse, C. J. [2 ]
Nemutudi, R. [1 ]
Nemraoui, O. [1 ]
Maaza, M. [1 ,2 ,3 ]
机构：
[1] Natl Res Fdn, NANOAFNET, MRD iThemba LABS, Somerset W, South Africa
[2] Univ Western Cape, Dept Phys, ZA-7535 Bellville, South Africa
[3] African Laser Ctr, Pretoria, South Africa
来源：
PHYSICA B-CONDENSED MATTER | 2012年 / 407卷 / 10期
基金：
新加坡国家研究基金会;
关键词：
Solar thermal absorbers; Metal-dielectric composites; Multilayer coating; Selective absorber; Platinum; Alumina; Absorbance; NANO-COMPOSITES; FILMS; PERCOLATION; AFM; TEM;
D O I：
10.1016/j.physb.2011.09.104
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Nano-phased structures based on metal-dielectric composites, also called cermets (ceramic-metal), are considered among the most effective spectral selective solar absorbers. For high temperature applications (stable up to 650 degrees C) noble metal nanoparticles and refractory oxide host matrices are ideal as per their high temperature chemical inertness and stability: Pt/Al2O3 cermet nano-composites are a representative family. This contribution reports on the optical properties of Pt/Al2O3 cermet nano-composites deposited in a multilayered tandem structure. The radio-frequency sputtering optimized Pt/Al2O3 solar absorbers consist of stainless steel substrate/ Mo coating layer/ Pt-Al2O3/ protective Al2O3 layer and stainless steel substrate/ Mo coating layer /Pt-Al2O3 for different composition and thickness of the Pt-Al2O3 cermet coatings. The microstructure, morphology, theoretical modeling and optical properties of the coatings were analyzed by the x-ray diffraction, atomic force, microscopy, effective medium approximation and UV-vis specular and diffuse reflectance. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：1634 / 1637
页数：4
相关论文
共 50 条
  • [1] Pt-Al203 Nanocoatings for High Temperature Concentrated Solar Thermal Power Applications
    Nuru, Zebib Y.
    Arendse, C.
    Nemutidi, R.
    Maaza, M.
    WOMEN IN PHYSICS, 2013, 1517 : 231 - 231
  • [2] Thermal stability of multilayered Pt-Al2O3 nanocoatings for high temperature CSP systems
    Nuru, Z. Y.
    Kotsedi, L.
    Arendse, C. J.
    Motaung, D.
    Mwakikunga, B.
    Roro, K.
    Maaza, M.
    VACUUM, 2015, 120 : 115 - 120
  • [3] Design, properties and degradation mechanisms of Pt-Al2O3 multilayer coating for high temperature solar thermal applications
    Gremion, Carine
    Seassal, Christian
    Drouard, Emmanuel
    Gerthoffer, Arnaud
    Pelissier, Nathalie
    Ducros, Cedric
    SURFACE & COATINGS TECHNOLOGY, 2015, 284 : 31 - 37
  • [4] Pt-Al2O3 cryogel with high thermal stability for catalytic combustion
    Osaki, Toshihiko
    Nagashima, Kiho
    Watari, Koji
    Tajiri, Koji
    CATALYSIS LETTERS, 2007, 119 (1-2) : 134 - 141
  • [5] Pt-Al2O3 Cryogel with High Thermal Stability for Catalytic Combustion
    Toshihiko Osaki
    Kiho Nagashima
    Koji Watari
    Koji Tajiri
    Catalysis Letters, 2007, 119 : 134 - 141
  • [6] GRADED-INDEX PT-AL2O3 COMPOSITE SOLAR ABSORBERS
    CRAIGHEAD, HG
    HOWARD, RE
    SWEENEY, JE
    BUHRMAN, RA
    APPLIED PHYSICS LETTERS, 1981, 39 (01) : 29 - 31
  • [7] STRUCTURE OF AND ADSORPTION ON PT-AL2O3 CATALYSTS
    LORNTSON, J
    KATZER, JR
    SCHULTZ, JM
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1978, 175 (MAR): : 60 - 60
  • [8] PT DISPERSITY AND REHYDRATATION OF ETA-AL2O3 IN PT-AL2O3 CATALYSTS
    VOLTER, J
    LIESKE, H
    UHLEMANN, M
    LIETZ, G
    ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1979, 452 (MAY): : 77 - 82
  • [9] THE THERMAL-BEHAVIOR OF PT-AL2O3 CATALYSTS STUDIED WITH THE CHANNELING TECHNIQUE
    TUROS, A
    MATZKE, H
    RABETTE, P
    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1981, 64 (02): : 565 - 575
  • [10] PULSE REACTOR FOR CHEMISORPTION OF HYDROGEN ON PT-AL2O3
    SERRANO, C
    CARBALLO, L
    WOLF, EE
    CARBERRY, JJ
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1977, 174 (SEP): : 14 - 14
12345