基于电纺丝法的In2O3/CdO复合材料的制备及甲醛气敏特性

doi:10.3866/PKU.WHXB201306091

摘要/Abstract

摘要：

用静电纺丝法制备了In(NO₃)₃/聚乙烯吡咯烷酮(PVP)纺丝前驱物, 然后分别在500、600、700℃时烧结得到三种In₂O₃ 纳米纤维. 通过X 射线衍射(XRD)仪、热重差热分析(TG/DTA)、场发射扫描式电子显微镜(FE-SEM)表征结果得知, 500℃时In₂O₃的晶相已经形成, 且粒径为最小, 约为24 nm, 纳米纤维呈介孔结构.将三种烧结温度的In₂O₃纤维制作成气敏元件, 测试对比了三种元件对甲醛气体的敏感特性, 结果表明, 500℃烧结得到的In₂O₃纳米纤维在工作温度为240℃时响应最好, 对浓度为10×10^-6 (体积分数, φ)甲醛的响应为7.用静电纺丝法合成了CdO 纳米颗粒, 通过XRD、SEM 表征得知CdO 呈粒径约为68 nm 的颗粒. 将In₂O₃和CdO以不同摩尔比(1:1, 10:1, 20:1)复合, 对比测试了纯In₂O₃及三种In₂O₃/CdO复合材料对应的气敏元件对甲醛的气敏特性, 测试结果表明当In₂O₃纳米纤维与CdO纳米颗粒以摩尔比10:1 复合时, 元件的工作温度较低(200℃), 且对甲醛表现出最佳的气敏特性, 对浓度为10×10^-6甲醛的响应为13.6, 响应/恢复时间为140 s/32s. 最后对不同摩尔比复合的In₂O₃/CdO对甲醛的气敏机理进行了初步分析.

关键词: In₂O₃, CdO, 复合材料, 甲醛, 气敏特性

Abstract:

In(NO₃)₃/polyvinyl pyrrolidone (PVP) nanofiber precursors were synthesized using a traditional electrospinning method, and were then annealed at 500, 600, and 700℃ to form In₂O₃ nanofibers. The as-prepared In₂O₃ nanofibers were characterized using X-ray diffraction (XRD), thermal gravimetry and differential thermal analysis (TG/DTA), and field-emission scanning electron microscopy (FE-SEM). The results show that the In₂O₃ nanofibers crystallize well, with a small average grain size (about 24 nm) and a good mesoporous structure, when annealed at 500℃. The In₂O₃ nanofibers annealed at the three temperatures were further used to fabricate gas sensors. The test results show that the sensor based on In₂O₃ annealed at 500℃ has the highest response (about 7) to 10×10^-6 (volume fraction, φ) formaldehyde (HCHO) at an operating temperature of 240℃. CdO nanoparticles were also prepared using the same method; XRD and FE-SEM show that the average grain size of CdO is about 68 nm. Finally, the as-prepared In₂O₃ nanofibers were mixed with the as-prepared CdO in molar ratios of 1:1, 10:1, and 20:1, and the mixtures were used to fabricate gas sensors. The HCHO-sensing properties of the sensors based on pure In₂O₃ and In₂O₃/CdO composites with different molar ratios were investigated at each optimum temperature. The results show that the In₂O₃/CdO composite with a molar ratio of 10:1 has excellent sensing properties: the response to 10×10^-6 HCHO is 13.6, the response/recovery time is 140 s/32 s, and the selectivity is better at a lower operating temperature of 200 °C. In addition, the HCHO-sensing mechanism of the sensors based on the In₂O₃/CdO composites was briefly analyzed.

Key words: In₂O₃, CdO, Composite, Formaldehyde, Gas-sensitivity

MSC2000:

O649

陈鹏鹏, 王兢, 张春丽, 郝育闻, 杜海英. 基于电纺丝法的In₂O₃/CdO复合材料的制备及甲醛气敏特性[J]. 物理化学学报, 2013, 29(08): 1827-1836.

CHEN Peng-Peng, WANG Jing, ZHANG Chun-Li, HAO Yu-Wen, DU Hai-Ying. Preparation of Electrospun In₂O₃/CdO Composite and Its Formaldehyde-Sensing Properties[J]. Acta Phys. -Chim. Sin., 2013, 29(08): 1827-1836.

参考文献

(1) Lao, J. Y.; Huang, J. Y.;Wang, D. Z.; Ren, Z. F. Adv. Mater.2004, 16 (1), 65.
(2) Gurlo, A.; Barsan, N.;Wermar, U.; Ivanovskaya, M.; Taurino,A.; Sicilianoet, P. Chem. Mater. 2003, 15 (23), 4377.
(3) Jiao, Z.;Wu, M. H.; Gu, J. Z.; Sun, X. L. Sens. Actuator B-Chem.2003, B94, 216.
(4) Belysheva, T. V.; Kazachkov, E. A.; Gutman, E. E. J. Anal. Chem. 2001, 56 (7), 676. doi: 10.1023/A:1016756725312
(5) Zhang, Y.; He, X. L.; Li, J. P. Sens. Actuator B-Chem. 2008,132, 67. doi: 10.1016/j.snb.2008.01.006
(6) Fan, H. T.; Zeng, Y.; Yang, H. B.; Zheng, X. J.; Liu, L.; Zhang,T. Acta Phys. -Chim. Sin. 2008, 24 (7), 1292. [范会涛,曾毅, 杨海滨, 郑学军, 刘丽, 张彤. 物理化学学报,2008, 24 (7), 1292.] doi: 10.3866/PKU.WHXB20080729
(7) Dirksena, J. A.; Duvala, K.; Ring, T. A. Sens. Actuator B-Chem. 2001, 80 (2), 106. doi: 10.1016/S0925-4005(01)00898-X
(8) Kolmakov, A.; Moskovits, M. Annu. Rev. Mater. 2004, 34, 151.doi: 10.1146/annurev.matsci.34.040203.112141
(9) Soldano, C.; Comini, E.; Baratto, C.; Ferroni, M.; Faglia, G.;Sberveglieri, G. Am. Ceram. Soc. 2012, 95 (3), 831.
(10) Zheng,W.; Lu, X. F.;Wang,W.; Li, Z. Y.; Zhang, H. G.;Wang,Y.;Wang, Z. J.;Wang, C. Sens. Actuator B-Chem. 2009, 142,61. doi: 10.1016/j.snb.2009.07.031
(11) Li, Z. P.; Fan, Y. J.; Zhan, J. H. Eur. J. Inorg. Chem. 2010, 3348.
(12) Wang, J. X.; Zou, B.; Ruan, S. P.; Zhao, J.; Chen, Q. K.;Wu, F.M. Mater. Lett. 2009, 63, 1750. doi: 10.1016/j.matlet.2009.05.046
(13) Xu, X. J.; Fan, H. T.; Liu, Y. T.;Wang, L. J.; Zhang, T. Sens. Actuator B-Chem. 2011, 160, 713. doi: 10.1016/j.snb.2011.08.053
(14) Xu, L.; Dong, B.;Wang, Y.; Bai, X.; Chen, J. S.; Liu, Q.; Song,H.W. J. Phys. Chem. C 2010, 114, 9089. doi: 10.1021/jp101115v
(15) Xu, L.; Dong, B.;Wang, Y.; Bai, X.; Liu, Q.; Song, H.W. Sens. Actuator B-Chem. 2010, 147, 531. doi: 10.1016/j.snb.2010.04.003
(16) Lim, S. K.; Hwang, S. H.; Chang, D.; Kim, S. Sens. Actuator B-Chem. 2010, 149, 28. doi: 10.1016/j.snb.2010.06.039
(17) Khiabani, P. S.; Hosseinmardi, A.; Marzbanrad, E.; Ghashghaie,S.; Zamani, C.; Keyanpour-Rad, M.; Raissi, B. Sens. Actuator B-Chem. 2012, 162, 102. doi: 10.1016/j.snb.2011.12.043
(18) Wang, X.; Zhang, J.; Zhu, Z.; Zhu, J. Colloid Surf. A. 2006, 27 (6), 59.
(19) Wang, Y.;Wang, Y. M.; Cao, J. L.; Kong, F. H.; Xia, H. J.;Zhang, J.; Zhu, B. L.;Wang, S. R.;Wu, S. H. Sens. Actuator B-Chem. 2008, 131, 183. doi: 10.1016/j.snb.2007.11.002
(20) Shishiyanu, S. T.; Shishiyanu, T. S.; Lupan, O. I. Sens. Actuator B-Chem. 2005, 107, 379. doi: 10.1016/j.snb.2004.10.030
(21) Wang, J. X.; Yu, L. X.;Wang, H. M.; Ruan, S. P.; Li, J. J.;Wu,F. Q. Acta Phys. -Chim. Sin. 2010, 26 (11), 3101. [王金兴,于连香, 王浩铭, 阮圣平, 李佳静, 吴凤清. 物理化学学报,2010, 26 (11), 3101.] doi: 10.3866/PKU.WHXB20101126
(22) Chen, T.; Zhou, Z. L.;Wang, Y. D. Sens. Actuator B-Chem.2008, 135, 219. doi: 10.1016/j.snb.2008.08.013
(23) Zheng,W.; Lu, X. F.;Wang,W.; Dong, B.; Zhang, H. N.;Wang,Z. J.; Xu, X. R.;Wang, C. J. Am. Ceram. Soc. 2010, 93 (1), 15.doi: 10.1111/jace.2010.93.issue-1
(24) Cabot, A.; Arbiol, J.; Morante, J. R.;Weimar, U.; Bârsan, N.;Göpel,W. Sens. Actuators B-Chem. 2000, 70, 87. doi: 10.1016/S0925-4005(00)00565-7
(25) Lori'a-Bastarrachea, M. I.; Herrera-Kao,W.; Cauich-Rodriguez,J.; Cervantes-Uc, J. M.; Vázquez-Torres, H.; ávila-Ortega, A.J. Therm. Anal. Calorim. 2011, 104, 737. doi: 10.1007/s10973-010-1061-9
(26) Ivanovskaya, M.; Gurlo, A.; Bogdanov, P. Sens. Actuator B-Chem. 2001, 77, 264. doi: 10.1016/S0925-4005(01)00708-0
(27) Singh, N.; Ponzoni, A.; Gupta, R. K.; Lee, P. S.; Comini, E.Sens. Actuator B-Chem. 2001, 160 (1), 1346.
(28) Hou, C. P.; Li, Y. H.; Ge, X. T.; Fang, D. R.; Shen, L.; Liu, X. Q.Electronic Components & Materials. 2004, 17, 17. [侯长平,李永红, 葛秀涛, 方大儒, 沈玲, 刘杏芹. 电子元件与材料,2004, 17, 17]
(29) Chen, P. P.;Wang, J.; Yao, P. J.; Du, H. Y.; Li, X. G. Acta Phys. -Chim. Sin. 2012, 28 (6), 1539. [陈鹏鹏, 王兢, 姚朋军, 杜海英, 李晓干. 物理化学学报, 2012, 28 (6), 1539.]doi: 10.3866/PKU.WHXB201204101

[1]	李路路,姚路,段力. 基于共价有机框架复合材料的锂硒电池应用[J]. 物理化学学报, 2019, 35(7): 734-739.
[2]	刘艳芳,胡兵,尹雅芝,刘国亮,洪昕林. 无表面活性剂条件下一锅法制备金属/氧化锌复合材料用于催化二氧化碳加氢制甲醇反应[J]. 物理化学学报, 2019, 35(2): 223-229.
[3]	陈克,孙振华,方若翩,李峰,成会明. 锂硫电池用石墨烯基材料的研究进展[J]. 物理化学学报, 2018, 34(4): 377-390.
[4]	陆腾,周永祥,郭洪霞. 聚合物接枝Janus纳米片形变的耗散粒子动力学研究[J]. 物理化学学报, 2018, 34(10): 1144-1150.
[5]	程若霖,金锡雄,樊向前,王敏,田建建,张玲霞,施剑林. 氮掺杂还原氧化石墨烯与吡啶共聚g-C₃N₄复合光催化剂及其增强的产氢活性[J]. 物理化学学报, 2017, 33(7): 1436-1445.
[6]	王美淞,邹培培,黄艳丽,王媛媛,戴立益. 高活性、可循环的Pt-Cu@3D石墨烯复合催化剂的制备和催化性能[J]. 物理化学学报, 2017, 33(6): 1230-1235.
[7]	全泉,谢顺吉,王野,徐艺军. 石墨烯基复合材料应用于光电二氧化碳还原的基本原理，研究进展和发展前景[J]. 物理化学学报, 2017, 33(12): 2404-2423.
[8]	李万隆,李月姣,曹美玲,曲薇,屈雯洁,陈实,陈人杰,吴锋. 流变相法制备海藻酸基碳包覆Li₃V₂(PO₄)₃材料的电化学性能[J]. 物理化学学报, 2017, 33(11): 2261-2267.
[9]	唐艳平,元莎,郭玉忠,黄瑞安,王剑华,杨斌,戴永年. 镁热还原法制备有序介孔Si/C锂离子电池负极材料及其电化学性能[J]. 物理化学学报, 2016, 32(9): 2280-2286.
[10]	李广勇,吴晓涵,何伟娜,方建慧,张学同. 石墨烯气凝胶的可控组装[J]. 物理化学学报, 2016, 32(9): 2146-2158.
[11]	周晓,孙敏强,王庚超. 石墨烯负载新型π-共轭聚合物纳米复合电极材料的合成及其超级电容特性[J]. 物理化学学报, 2016, 32(4): 975-982.
[12]	李菀丽,刘晓云,苗艳勤,杨君礼,武聪伶,李源浩,郭鹍鹏,王华,许并社. MgF₂改性Alq₃纳米复合材料的制备及其对OLED抗老化性能的提高[J]. 物理化学学报, 2015, 31(9): 1780-1786.
[13]	潘剑明, 杨威, 孙海标, 郑翔, 李国华. 碳化钨与蒙脱石纳米复合材料的制备与电催化活性[J]. 物理化学学报, 2015, 31(5): 998-1006.
[14]	杜海英, 王兢, 乔俏, 孙炎辉, 邵强, 李晓干. ZnO/PPy异质纳米复合材料的制备、表征及其气敏特性[J]. 物理化学学报, 2015, 31(4): 800-806.
[15]	杜雪莲, 丛野, 姜露, 李轩科, 崔正威, 董志军, 袁观明, 张江. 碳化硅衍生碳/球形天然石墨复合材料的制备及其结构调控[J]. 物理化学学报, 2015, 31(3): 583-588.

基于电纺丝法的In₂O₃/CdO复合材料的制备及甲醛气敏特性

Preparation of Electrospun In₂O₃/CdO Composite and Its Formaldehyde-Sensing Properties

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 10