由片状材料的定向自组装得到的层状结构可以使膜具有良好的取向性和特殊的物理化学性能.通过对ZnSO4·7H2O在150℃进行水热反应合成出高径厚比的碱式硫酸锌薄片,然后将这种大面积的薄片组装成一定厚度的自持膜并进一步热处理成具有多孔结构的层状ZnO厚膜.通过对600℃、700℃和800℃热处理得到的材料进行XRD及SEM分析,研究了其成分及多孔结构的产生过程,并结合气敏测试结果证明由烧结温度所带来的多孔结构的变化确实会对其气敏性能造成一定的影响.对不同气体进行的气敏性能测试表明,这种层状多孔ZnO结构是一种理想的气敏传感材料,特别适合用于检测H2S气体.
参考文献
| [1] | Krishnakumar, T;Jayaprakash, R;Pinna, N;Donato, N;Bonavita, A;Micali, G;Neri, G .CO gas sensing of ZnO nanostructures synthesized by an assisted microwave wet chemical route[J].Sensors and Actuators, B. Chemical,2009(1):198-204. |
| [2] | Chen YJ;Zhu CL;Xiao G .Ethanol sensing characteristics of ambient temperature sonochemically synthesized ZnO nanotubes[J].Sensors and Actuators, B. Chemical,2008(2):639-642. |
| [3] | Delaunay JJ;Kakoiyama N;Yamada I .Fabrication of three-dimensional network of ZnO tetratpods and its response to ethanol[J].Materials Chemistry and Physics,2007(1):141-145. |
| [4] | Min Y;Tuller H L;Palzer S et al.Gas response of reactively sputtered ZnO films on Si-based micro-array[J].Sensors and Actuators B: Chemical,2003,93(1-3):435. |
| [5] | Oh, Eugene;Choi, Ho-Yun;Jung, Seung-Ho;Cho, Seungho;Kim, Jae Chang;Lee, Kun-Hong;Kang, Sang-Woo;Kim, Jintae;Yun, Ju-Young;Jeong, Soo-Hwan .High-performance NO2 gas sensor based on ZnO nanorod grown by ultrasonic irradiation[J].Sensors and Actuators, B. Chemical,2009(1):239-243. |
| [6] | Bie LH;Yan XN;Yin J;Duan YQ;Yuan ZH .Nanopillar ZnO gas sensor for hydrogen and ethanol[J].Sensors and Actuators, B. Chemical,2007(2):604-608. |
| [7] | Jin Hyung Jun;Junggwon Yun;Kyoungah Cho;In-Sung Hwang;Jong-Henn Lee;Sangsig Kim .Necked ZnO nanoparticle-based NO_2sensors with high and fast response[J].Sensors and Actuators, B. Chemical,2009(2):412-417. |
| [8] | Armelao L;Bottaro G;Pascolini M;Sessolo M;Tondello E;Bettinelli M;Speghini A .Structure-luminescence correlations in europium-doped sol-gel ZnO nanopowders[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2008(11):4049-4054. |
| [9] | Xu JQ;Chen YP;Chen DY;Shen JN .Hydrothermal synthesis and gas sensing characters of ZnO nanorods[J].Sensors and Actuators, B. Chemical,2006(1):526-531. |
| [10] | Ahn, MW;Park, KS;Heo, JH;Kim, DW;Choi, KJ;Park, JG .On-chip fabrication of ZnO-nanowire gas sensor with high gas sensitivity[J].Sensors and Actuators, B. Chemical,2009(1):168-173. |
| [11] | Kato T;Seiyama A .A new detector for gaseous components using semiconductor thin film[J].Analytical Chemistry,1962,34(11):1502. |
| [12] | Wei Wang;Zhenyu Li;Wei Zheng;Huimin Huang;Ce Wang;Jinghui Sun .Cr2O3-sensitized ZnO electrospun nanofibers based ethanol detectors[J].Sensors and Actuators, B. Chemical,2010(2):754-758. |
| [13] | Liu, ZT;Fan, TX;Zhang, D;Gong, XL;Xu, JQ .Hierarchically porous ZnO with high sensitivity and selectivity to H2S derived from biotemplates[J].Sensors and Actuators, B. Chemical,2009(2):499-509. |
| [14] | Michael Tiemann .Porous Metal Oxides as Gas Sensors[J].Chemistry: A European journal,2007(30):8376-8388. |
| [15] | Xue, L.;Mei, X.;Zhang, W.;Yuan, L.;Hu, X.;Huang, Y.;Yanagisawa, K. .Synthesis and assembly of zinc hydroxide sulfate large flakes: Application in gas sensor based on a novel surface mount technology[J].Sensors and Actuators, B. Chemical,2010(2):495-501. |
| [16] | Xu Chen;Yu Lei;Wensheng Yang .Fabrication of Free-standing Layer-by-layer Films of Layered Double Hydroxide Nanosheets and Polyelectrolytes[J].Chemistry Letters,2008(10):1050-1051. |
| [17] | Wang LY;Li C;Liu M;Evans DG;Duan X .Large continuous, transparent and oriented self-supporting films of layered double hydroxides with tunable chemical composition[J].Chemical communications,2007(2):123-125. |
| [18] | Zhou YL.;Li Z.;Hu NF.;Zeng YH.;Rusling JF. .Layer-by-layer assembly of ultrathin films of hemoglobin and clay nanoparticles with electrochemical and catalytic activity[J].Langmuir: The ACS Journal of Surfaces and Colloids,2002(22):8573-8579. |
| [19] | Podsiadlo P;Kaushik A K;Arruda E M.Ultrrastrong and stiff layered polymer nanocomposites[J].Science,2007(318):80. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%