The swelling of vapor-sensitive fluoropolymers modified with metal nanoparticles: interpretation of the material-vapor interaction mechanism

被引:10
作者
Cioffi, N
Torsi, L
Farella, I
Altamura, D
Valentini, A
Quinto, M
Sabbatini, L
Zambonin, PG
机构
[1] Univ Bari, Dipartmento Chim, I-70126 Bari, Italy
[2] Ist Nazl Fis Nucl, Unita Bari, Dipartimento Interateneo Fis, I-70126 Bari, Italy
[3] Univ Studi Foggia, Ist Produz & Perparaz Alimentari, I-71100 Foggia, Italy
[4] Univ Bari, Ctr Excellence Innovat Technol Signal Detect & Pr, Bari, Italy
关键词
gold; palladium; nanoparticle; fluoropolymer; swelling; sensor;
D O I
10.1016/j.snb.2003.12.058
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Nanostructured fluoropolymer (CFx) and metal-CFx composite films, deposited by the ion-beam sputtering technique, can be employed in sensors for organic vapors due to their tendency to swell when exposed to the vapors of target organic solvents. Metal inclusion plays a crucial role in the sensing process as the material sensitivity strongly depends on the chemical nature and concentration of the inorganic nanoparticles (NPs). In this study, the phenomena expected to concur to the swelling process and influence the swelling sensitivity are systematically discussed and conclusions are drawn on the interaction mechanism between acetone (chosen as a target analyte) and CFx, Au-CFx, Pd-CFx active layers. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:9 / 16
页数:8
相关论文
共 19 条
[11]  
FARELLA I, IN PRESS APPL PHYS A
[12]  
Flory P J., PRINCIPLES POLYM CHE
[13]  
Gardner J. W., 1999, ELECT NOSES PRINCIPL
[14]  
KUPRIYANOV LY, 1996, HDB SENSORS ACTUATOR, V4
[15]  
MANDELIS A, 1963, PHYS CHEM TECHNOLOGY
[16]   A STUDY OF HIGH ADHESION PROPERTIES OF GOLD ON SURFACE-MODIFIED FLEXIBLE POLYTETRAFLUOROETHYLENE SUBSTRATES FOR USE IN MEDICAL IMPLANTS [J].
MCLAUGHLIN, JA ;
MACKEN, D ;
MEENAN, BJ ;
MCADAMS, ET ;
MAGUIRE, PD .
ADVANCES IN ENGINEERING MATERIALS, 1995, 99-1 :331-338
[17]  
Sberveglieri G., 1992, GAS SENSORS
[18]   PLASMA-SYNTHESIZED FLUOROPOLYMER FILMS FOR MOLECULAR SENSING PROBES [J].
SUGIMOTO, I .
JOURNAL OF APPLIED PHYSICS, 1991, 70 (05) :2887-2889
[19]  
Wu PK, 1995, MATER RES SOC SYMP P, V385, P79, DOI 10.1557/PROC-385-79