Citation: DU Hai-Ying, WANG Jing, QIAO Qiao, SUN Yan-Hui, SHAO Qiang, LI Xiao-Gan. Synthesis and Characterization of ZnO/PPy Hetero-Nanocomposites and Their Gas Sensing Properties[J]. Acta Physico-Chimica Sinica, ;2015, 31(4): 800-806. doi: 10.3866/PKU.WHXB201501283 shu

Synthesis and Characterization of ZnO/PPy Hetero-Nanocomposites and Their Gas Sensing Properties

DU Hai-Ying ^1,2 ,
WANG Jing ^1, ,
QIAO Qiao ¹ ,
SUN Yan-Hui ^1,2 ,
SHAO Qiang ² ,
LI Xiao-Gan ¹

1.
1 School of Electronic Science and Technology, Dalian University of Technology, Dalian 116023, Liaoning Province, P. R. China;
2 College of Electromechanical & Information Engineering, Dalian Nationalities University, Dalian 116600, Liaoning Province, P. R. China

Received Date: 12 December 2014
Available Online: 28 January 2015
Fund Project: 国家自然科学基金(61176068, 61131004, 61474012)资助项目 (61176068, 61131004, 61474012)

Pyrrole (Py) was oxidized by ferric(III) chloride solution in water for the synthesis of polypyrrole (PPy) nanoparticles on the substrate slide by in-situ polymerization at room temperature. Zinc oxide nanorods grew on the PPy nanoparticles when in a water bath at 90 ℃. ZnO/PPy hetero-nanocomposites were obtained by a hydrothermal method and characterized using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). Gas sensors were fabricated based on the ZnO/PPy hetero-nanocomposites to detect ammonia at room temperature. The gas sensing properties of these hetero-nanocomposites were measured in the concentration range of 10×10^-6-150×10^-6 (volume fraction). The relationship of the sensitivity of the sensors to the ammonia concentration showed linearity. The gas sensor based on ZnO/PPy heteronanocomposites showed od selectivity to ammonia when in the presence of interfering gases such as methanol, acetone, and toluene. The formation mechanism of the ZnO/PPy hetero-nanocomposites was briefly analyzed.
- In-situ polymerization,
- Hetero-nanocomposite,
- Gas sensor,
- Gas sensing property,
- Formation mechanism
References
1. [1]
  
  (1) Ito, T.; Shirakawa, H.; Ikeda, S. J. Polym. Sci. Part A: Polym. Chem. 1996, 34, 2533.
2. [2]
  (2) Shirakawa, H.; Ikeda, S.; Aizawa, M.; Yoshitake, J.; Suzuki, S. Synth. Met. 1981, 4, 43. doi: 10.1016/0379-6779(81)90056-4
3. [3]
  (3) Ayad, M. M.; Salahuddin, N. A.; Alghaysh, M. O.; Issa, R. M. Curr. Appl. Phys. 2010, 10, 235. doi: 10.1016/j.cap.2009.05.030
4. [4]
  (4) Ram, M. K.; Yavuz, O.; Aldissi, M. Synth. Met. 2005, 151, 77. doi: 10.1016/j.synthmet.2005.03.021
5. [5]
  (5) Suri, K.; Annapoorni, S.; Sarkar, A. K.; Tandon, R. P. Sens. Actuators B 2002, 81, 277. doi: 10.1016/S0925-4005(01)00966-2
6. [6]
  (6) Jun, H. K.; Hoh, Y. S.; Lee, B. S.; Lee, S. T.; Lim, J. O.; Lee, D. D.; Huh, J. S. Sens. Actuators B 2003, 96, 576. doi: 10.1016/j.snb.2003.06.002
7. [7]
  (7) Malhotra, B. D.; Arora, K.; Chaubey, A.; Singhal, R.; Singh, R. P.; Pandey, M. K.; Samanta, S. B.; Chand, S. Biosens. Bioelectron 2006, 21, 1777. doi: 10.1016/j.bios.2005.09.002
8. [8]
  (8) Ameer, Q.; Adeloju, S. B. Sens. Actuators B 2005, 106, 541. doi: 10.1016/j.snb.2004.07.033
9. [9]
  (9) Palod, P. A.; Pandey, S. S.; Hayase, S.; Singh, V. Appl. Biochem. Biotechnol. 2014, 174, 1059. doi: 10.1007/s12010-014-0988-x
10. [10]
  (10) Patois, T.; Sanchez, J. B.; Berger, F.; Rauch, J. Y.; Fievet, P.; Lakard, B. Sens. Actuators B 2012, 171-172, 431.
11. [11]
  (11) Aytaç, S.; Kuralay, F.; Boyac?, ?. H.; Unaleroglu, C. Sens. Actuators B 2011, 160, 405. doi: 10.1016/j.snb.2011.07.069
12. [12]
  (12) Tebizi-Tighilt, F. Z.; Zane, F.; Belhaneche-Bensemra, N.; Belhousse, S.; Sam, S.; Gabouze, N. E. Appl. Surf. Sci. 2013, 269, 180. doi: 10.1016/j.apsusc.2012.10.080
13. [13]
  (13) Su, W. C.; Iroh, J. O. Electrochim. Acta 1999, 44, 4655. doi: 10.1016/S0013-4686(99)00219-4
14. [14]
  (14) Zhang, J.; Kong, L. B.; Li, H.; Luo, Y. C.; Kang, L. J. Mater. Sci. 2010, 45, 1947. doi: 10.1007/s10853-009-4186-0
15. [15]
  (15) Omastova, M.; Simon, F. J. Mater. Sci. 2000, 35, 1743. doi: 10.1023/A:1004728502591
16. [16]
  (16) Egami, Y.; Yamamoto, T.; Suzuki, K.; Yasuhara, T.; Higuchi, E.; Inoue, H. J. Mater. Sci. 2012, 47, 382. doi: 10.1007/s10853-011-5809-9
17. [17]
  (17) Rawal, I.; Kaur, A. Sen. Actuators A 2013, 203, 92. doi: 10.1016/j.sna.2013.08.023
18. [18]
  (18) Zhang, L.; Meng, F.; Chen, Y.; Liu, J.; Sun, Y.; Luo, T.; Li, M.; Liu, J. Sens. Actuators B 2009, 142, 204. doi: 10.1016/j.snb.2009.07.042
19. [19]
  (19) Wang, J.; Zhang, P.; Qi, J. Q.; Yao, P. J. Sens. Actuators B 2009, 136, 399. doi: 10.1016/j.snb.2008.12.056
20. [20]
  (20) Xu, L.; Dong, B.; Wang, Y.; Bai, X.; Liu, Q.; Song, H.W. Sens. Actuators B 2010, 147, 531. doi: 10.1016/j.snb.2010.04.003
21. [21]
  (21) Yu, Q. Z.; Wang, M.; Chen, H. Z. Mater. Lett. 2010, 64, 428. doi: 10.1016/j.matlet.2009.11.039
22. [22]
  (22) Hsueh, T. J.; Hsu, C. L.; Chang, S. J.; Chen, I. C. Sens. Actuators B. 2007, 126, 473. doi: 10.1016/j.snb.2007.03.034
23. [23]
  (23) Su, M. Y.; Wang, J.; Du, H. Y.; Yao, P. J.; Zheng, Y. G.; Li, X. G. Sens. Actuators B. 2012, 161, 1038. doi: 10.1016/j.snb.2011.12.005
24. [24]
  (24) Jing, Z. H.; Zhan, J. H. Adv. Mater. 2008, 20, 4547. doi: 10.1002/adma.v20:23
25. [25]
  (25) Huang, J. R.; Wu, Y. J.; Gu, C. P.; Zhai, M. H.; Yu, K.; Yang, M.; Liu, J. H. Sens. Actuators B 2010, 146, 206. doi: 10.1016/j.snb.2010.02.052
26. [26]
  (26) Dong, S. Y.; Peng, L.; Liu, D.; Yang, Q. X.; Huang, T. L. Bioelectrochemistry 2014, 98, 87. doi: 10.1016/j.bioelechem.2014.04.001
27. [27]
  (27) Su, P. G.; Peng, Y. T. Sens. Actuators B 2014, 193, 637. doi: 10.1016/j.snb.2013.12.027
28. [28]
  (28) Yao, T. J.; Li, X.; Quan, L.; Jie, W.; Ren, Z. Y.; Wang, C. X.; Zhang, J. H.; Yu, K.; Yang, B. Polymer 2009, 50, 3938. doi: 10.1016/j.polymer.2009.06.054
29. [29]
  (29) Navale, S. T.; Mane, A. T.; Chougule, M. A.; Sakhare, R. D.; Nalage, S. R.; Patil, V. B. Synth. Met. 2014, 189, 94. doi: 10.1016/j.synthmet.2014.01.002
30. [30]
  (30) Chougule, M. A.; Dalavi, D. S.; Mali, S.; Patil, P. S.; Moholkar, A. V.; Agawane, G. L.; Kim, J. H.; Sen, S.; Patil, V. B. Measurement 2012, 45, 1989. doi: 10.1016/j.measurement.2012.04.023
31. [31]
  (31) Dai, Z. R.; Pan, Z.W.; Wang, Z. L. Adv. Funct. Mater. 2003, 13, 9. doi: 10.1002/adfm.200390013
32. [32]
  (32) Grätzel, M. Nature 2001, 414, 338. doi: 10.1038/35104607
33. [33]
  (33) Weis, T.; Lipperheide, R.; Wille, U.; Brehme, S. J. Appl. Phys. 2002, 92, 1411. doi: 10.1063/1.1488246
34. [34]
  (34) Chen, Y. J.; Zhu, C. L.; Shi, X. L.; Cao, M. S.; Jin, H. B. Nanotechnology 2008, 19, 1.
35. [35]
  (35) Chougulea, M. A.; Sen, S.; Patil, V. B. Synth. Met. 2012, 162, 1598. doi: 10.1016/j.synthmet.2012.07.002
1. [1]
  
  (1) Ito, T.; Shirakawa, H.; Ikeda, S. J. Polym. Sci. Part A: Polym. Chem. 1996, 34, 2533.
2. [2]
  (2) Shirakawa, H.; Ikeda, S.; Aizawa, M.; Yoshitake, J.; Suzuki, S. Synth. Met. 1981, 4, 43. doi: 10.1016/0379-6779(81)90056-4
3. [3]
  (3) Ayad, M. M.; Salahuddin, N. A.; Alghaysh, M. O.; Issa, R. M. Curr. Appl. Phys. 2010, 10, 235. doi: 10.1016/j.cap.2009.05.030
4. [4]
  (4) Ram, M. K.; Yavuz, O.; Aldissi, M. Synth. Met. 2005, 151, 77. doi: 10.1016/j.synthmet.2005.03.021
5. [5]
  (5) Suri, K.; Annapoorni, S.; Sarkar, A. K.; Tandon, R. P. Sens. Actuators B 2002, 81, 277. doi: 10.1016/S0925-4005(01)00966-2
6. [6]
  (6) Jun, H. K.; Hoh, Y. S.; Lee, B. S.; Lee, S. T.; Lim, J. O.; Lee, D. D.; Huh, J. S. Sens. Actuators B 2003, 96, 576. doi: 10.1016/j.snb.2003.06.002
7. [7]
  (7) Malhotra, B. D.; Arora, K.; Chaubey, A.; Singhal, R.; Singh, R. P.; Pandey, M. K.; Samanta, S. B.; Chand, S. Biosens. Bioelectron 2006, 21, 1777. doi: 10.1016/j.bios.2005.09.002
8. [8]
  (8) Ameer, Q.; Adeloju, S. B. Sens. Actuators B 2005, 106, 541. doi: 10.1016/j.snb.2004.07.033
9. [9]
  (9) Palod, P. A.; Pandey, S. S.; Hayase, S.; Singh, V. Appl. Biochem. Biotechnol. 2014, 174, 1059. doi: 10.1007/s12010-014-0988-x
10. [10]
  (10) Patois, T.; Sanchez, J. B.; Berger, F.; Rauch, J. Y.; Fievet, P.; Lakard, B. Sens. Actuators B 2012, 171-172, 431.
11. [11]
  (11) Aytaç, S.; Kuralay, F.; Boyac?, ?. H.; Unaleroglu, C. Sens. Actuators B 2011, 160, 405. doi: 10.1016/j.snb.2011.07.069
12. [12]
  (12) Tebizi-Tighilt, F. Z.; Zane, F.; Belhaneche-Bensemra, N.; Belhousse, S.; Sam, S.; Gabouze, N. E. Appl. Surf. Sci. 2013, 269, 180. doi: 10.1016/j.apsusc.2012.10.080
13. [13]
  (13) Su, W. C.; Iroh, J. O. Electrochim. Acta 1999, 44, 4655. doi: 10.1016/S0013-4686(99)00219-4
14. [14]
  (14) Zhang, J.; Kong, L. B.; Li, H.; Luo, Y. C.; Kang, L. J. Mater. Sci. 2010, 45, 1947. doi: 10.1007/s10853-009-4186-0
15. [15]
  (15) Omastova, M.; Simon, F. J. Mater. Sci. 2000, 35, 1743. doi: 10.1023/A:1004728502591
16. [16]
  (16) Egami, Y.; Yamamoto, T.; Suzuki, K.; Yasuhara, T.; Higuchi, E.; Inoue, H. J. Mater. Sci. 2012, 47, 382. doi: 10.1007/s10853-011-5809-9
17. [17]
  (17) Rawal, I.; Kaur, A. Sen. Actuators A 2013, 203, 92. doi: 10.1016/j.sna.2013.08.023
18. [18]
  (18) Zhang, L.; Meng, F.; Chen, Y.; Liu, J.; Sun, Y.; Luo, T.; Li, M.; Liu, J. Sens. Actuators B 2009, 142, 204. doi: 10.1016/j.snb.2009.07.042
19. [19]
  (19) Wang, J.; Zhang, P.; Qi, J. Q.; Yao, P. J. Sens. Actuators B 2009, 136, 399. doi: 10.1016/j.snb.2008.12.056
20. [20]
  (20) Xu, L.; Dong, B.; Wang, Y.; Bai, X.; Liu, Q.; Song, H.W. Sens. Actuators B 2010, 147, 531. doi: 10.1016/j.snb.2010.04.003
21. [21]
  (21) Yu, Q. Z.; Wang, M.; Chen, H. Z. Mater. Lett. 2010, 64, 428. doi: 10.1016/j.matlet.2009.11.039
22. [22]
  (22) Hsueh, T. J.; Hsu, C. L.; Chang, S. J.; Chen, I. C. Sens. Actuators B. 2007, 126, 473. doi: 10.1016/j.snb.2007.03.034
23. [23]
  (23) Su, M. Y.; Wang, J.; Du, H. Y.; Yao, P. J.; Zheng, Y. G.; Li, X. G. Sens. Actuators B. 2012, 161, 1038. doi: 10.1016/j.snb.2011.12.005
24. [24]
  (24) Jing, Z. H.; Zhan, J. H. Adv. Mater. 2008, 20, 4547. doi: 10.1002/adma.v20:23
25. [25]
  (25) Huang, J. R.; Wu, Y. J.; Gu, C. P.; Zhai, M. H.; Yu, K.; Yang, M.; Liu, J. H. Sens. Actuators B 2010, 146, 206. doi: 10.1016/j.snb.2010.02.052
26. [26]
  (26) Dong, S. Y.; Peng, L.; Liu, D.; Yang, Q. X.; Huang, T. L. Bioelectrochemistry 2014, 98, 87. doi: 10.1016/j.bioelechem.2014.04.001
27. [27]
  (27) Su, P. G.; Peng, Y. T. Sens. Actuators B 2014, 193, 637. doi: 10.1016/j.snb.2013.12.027
28. [28]
  (28) Yao, T. J.; Li, X.; Quan, L.; Jie, W.; Ren, Z. Y.; Wang, C. X.; Zhang, J. H.; Yu, K.; Yang, B. Polymer 2009, 50, 3938. doi: 10.1016/j.polymer.2009.06.054
29. [29]
  (29) Navale, S. T.; Mane, A. T.; Chougule, M. A.; Sakhare, R. D.; Nalage, S. R.; Patil, V. B. Synth. Met. 2014, 189, 94. doi: 10.1016/j.synthmet.2014.01.002
30. [30]
  (30) Chougule, M. A.; Dalavi, D. S.; Mali, S.; Patil, P. S.; Moholkar, A. V.; Agawane, G. L.; Kim, J. H.; Sen, S.; Patil, V. B. Measurement 2012, 45, 1989. doi: 10.1016/j.measurement.2012.04.023
31. [31]
  (31) Dai, Z. R.; Pan, Z.W.; Wang, Z. L. Adv. Funct. Mater. 2003, 13, 9. doi: 10.1002/adfm.200390013
32. [32]
  (32) Grätzel, M. Nature 2001, 414, 338. doi: 10.1038/35104607
33. [33]
  (33) Weis, T.; Lipperheide, R.; Wille, U.; Brehme, S. J. Appl. Phys. 2002, 92, 1411. doi: 10.1063/1.1488246
34. [34]
  (34) Chen, Y. J.; Zhu, C. L.; Shi, X. L.; Cao, M. S.; Jin, H. B. Nanotechnology 2008, 19, 1.
35. [35]
  (35) Chougulea, M. A.; Sen, S.; Patil, V. B. Synth. Met. 2012, 162, 1598. doi: 10.1016/j.synthmet.2012.07.002
1. [1]
  Xingchao Zhao , Xiaoming Li , Ming Liu , Zijin Zhao , Kaixuan Yang , Pengtian Liu , Haolan Zhang , Jintai Li , Xiaoling Ma , Qi Yao , Yanming Sun , Fujun Zhang . 倍增型全聚合物光电探测器及其在光电容积描记传感器上的应用. Acta Physico-Chimica Sinica, 2025, 41(1): 2311021-. doi: 10.3866/PKU.WHXB202311021
2. [2]
  Meiqing Yang , Lu Wang , Haozi Lu , Yaocheng Yang , Song Liu . Recent Advances of Functional Nanomaterials for Screen-Printed Photoelectrochemical Biosensors. Acta Physico-Chimica Sinica, 2025, 41(2): 100018-. doi: 10.3866/PKU.WHXB202310046
3. [3]
  Fang Niu , Rong Li , Qiaolan Zhang . Analysis of Gas-Solid Adsorption Behavior in Resistive Gas Sensing Process. University Chemistry, 2024, 39(8): 142-148. doi: 10.3866/PKU.DXHX202311102
4. [4]
  Qiaoqiao BAI , Anqi ZHOU , Xiaowei LI , Tang LIU , Song LIU . Construction of pressure-temperature dual-functional flexible sensors and applications in biomedicine. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2259-2274. doi: 10.11862/CJIC.20240128
5. [5]
  Zhongxin YU , Wei SONG , Yang LIU , Yuxue DING , Fanhao MENG , Shuju WANG , Lixin YOU . Fluorescence sensing on chlortetracycline of a Zn-coordination polymer based on mixed ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2415-2421. doi: 10.11862/CJIC.20240304
6. [6]
  Jiarong Feng , Yejie Duan , Chu Chu , Dezhen Xie , Qiu'e Cao , Peng Liu . Preparation and Application of a Streptomycin Molecularly Imprinted Electrochemical Sensor: A Suggested Comprehensive Analytical Chemical Experiment. University Chemistry, 2024, 39(8): 295-305. doi: 10.3866/PKU.DXHX202401016
7. [7]
  Yongjie ZHANG , Bintong HUANG , Yueming ZHAI . Research progress of formation mechanism and characterization techniques of protein corona on the surface of nanoparticles. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2318-2334. doi: 10.11862/CJIC.20240247
8. [8]
  Cunling Ye , Xitong Zhao , Hongfang Wang , Zhike Wang . A Formula for the Calculation of Complex Concentrations Arising from Side Reactions and Its Applications. University Chemistry, 2024, 39(4): 382-386. doi: 10.3866/PKU.DXHX202310043
9. [9]
  Yuejiao An , Wenxuan Liu , Yanfeng Zhang , Jianjun Zhang , Zhansheng Lu . Revealing Photoinduced Charge Transfer Mechanism of SnO₂/BiOBr S-Scheme Heterostructure for CO₂ Photoreduction. Acta Physico-Chimica Sinica, 2024, 40(12): 2407021-. doi: 10.3866/PKU.WHXB202407021
10. [10]
  Xueyu Lin , Ruiqi Wang , Wujie Dong , Fuqiang Huang . 高性能双金属氧化物负极的理性设计及储锂特性. Acta Physico-Chimica Sinica, 2025, 41(3): 2311005-. doi: 10.3866/PKU.WHXB202311005
11. [11]
  Ziliang KANG , Jiamin ZHANG , Hong AN , Xiaohua LIU , Yang CHEN , Jinping LI , Libo LI . Preparation and water adsorption properties of CaCl₂@MOF-808 in-situ composite moulded particles. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2133-2140. doi: 10.11862/CJIC.20240282
12. [12]
  You Wu , Chang Cheng , Kezhen Qi , Bei Cheng , Jianjun Zhang , Jiaguo Yu , Liuyang Zhang . ZnO/D-A共轭聚合物S型异质结高效光催化产H₂O₂及其电荷转移动力学研究. Acta Physico-Chimica Sinica, 2024, 40(11): 2406027-. doi: 10.3866/PKU.WHXB202406027
13. [13]
  Yingchun ZHANG , Yiwei SHI , Ruijie YANG , Xin WANG , Zhiguo SONG , Min WANG . Dual ligands manganese complexes based on benzene sulfonic acid and 2, 2′-bipyridine: Structure and catalytic properties and mechanism in Mannich reaction. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1501-1510. doi: 10.11862/CJIC.20240078
14. [14]
  Zhen Yao , Bing Lin , Youping Tian , Tao Li , Wenhui Zhang , Xiongwei Liu , Wude Yang . Visible-Light-Mediated One-Pot Synthesis of Secondary Amines and Mechanistic Exploration. University Chemistry, 2024, 39(5): 201-208. doi: 10.3866/PKU.DXHX202311033
15. [15]
  Jiao CHEN , Yi LI , Yi XIE , Dandan DIAO , Qiang XIAO . Vapor-phase transport of MFI nanosheets for the fabrication of ultrathin b-axis oriented zeolite membranes. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 507-514. doi: 10.11862/CJIC.20230403
16. [16]
  Jianyu Qin , Yuejiao An , Yanfeng Zhang . In Situ Assembled ZnWO₄/g-C₃N₄ S-Scheme Heterojunction with Nitrogen Defect for CO₂ Photoreduction. Acta Physico-Chimica Sinica, 2024, 40(12): 2408002-. doi: 10.3866/PKU.WHXB202408002
17. [17]
  Bao Jia , Yunzhe Ke , Shiyue Sun , Dongxue Yu , Ying Liu , Shuaishuai Ding . Innovative Experimental Teaching for the Preparation and Modification of Conductive Organic Polymer Thin Films in Undergraduate Courses. University Chemistry, 2024, 39(10): 271-282. doi: 10.12461/PKU.DXHX202404121
18. [18]
  Xiao SANG , Qi LIU , Jianping LANG . Synthesis, structure, and fluorescence properties of Zn(Ⅱ) coordination polymers containing tetra-alkenylpyridine ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2124-2132. doi: 10.11862/CJIC.20240158
19. [19]
  Xiaotian ZHU , Fangding HUANG , Wenchang ZHU , Jianqing ZHAO . Layered oxide cathode for sodium-ion batteries: Surface and interface modification and suppressed gas generation effect. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 254-266. doi: 10.11862/CJIC.20240260
20. [20]
  Yaping ZHANG , Tongchen WU , Yun ZHENG , Bizhou LIN . Z-scheme heterojunction β-Bi₂O₃ pillared CoAl layered double hydroxide nanohybrid: Fabrication and photocatalytic degradation property. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 531-539. doi: 10.11862/CJIC.20240256

Get Citation

PDF

XML

Metrics

PDF Downloads(361)
Abstract views(742)
HTML views(23)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Synthesis and Characterization of ZnO/PPy Hetero-Nanocomposites and Their Gas Sensing Properties

References

Metrics

通讯作者: 陈斌, bchen63@163.com