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Journal articles on the topic 'Graphene-polypyrrole composite'

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Author: Grafiati

Published: 10 December 2022

Last updated: 29 January 2023

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1

Wu, Sai, Jie Tian, Xianglu Yin, and Wei Wu. "Preparation of Graphene–Polypyrrole Hollow Sphere by Pickering Emulsion Method and Their Electrochemical Performances as Supercapacitor Electrode." Nano 14, no. 05 (May 2019): 1950056. http://dx.doi.org/10.1142/s1793292019500565.

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Graphene–polypyrrole hollow sphere composite was synthesized for the first time via Pickering emulsion polymerization using graphene oxide as Pickering stabilizer. It was found that polypyrrole and graphene were well hybrid and all graphene–polypyrrole composites had a uniform hollow sphere structure, whose diameters gradually decreased as the pyrrole content decreased. The electrochemical properties of the composites as supercapacitor electrode were investigated. The test results displayed that the specific capacitance of the optimal ratio of composite could reach 238[Formula: see text]F/g at a current density of 1[Formula: see text]A/g, and a 90.7% capacitance retention could be achieved after 1500 cycles, which was a significant improvement compared with the 62.2% retention of pure polypyrrole.

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2

Wang, Lichang, Li Huang, Yibin Li, and Ye Yuan. "Polypyrrole@Reduced graphene oxide@Liquid metal composites for efficient electromagnetic wave absorption." Journal of Applied Physics 132, no. 19 (November 21, 2022): 194101. http://dx.doi.org/10.1063/5.0116953.

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Recently, non-magnetic composites acting as microwave absorbing materials are gaining more attention due to their unique advantages. In this work, polypyrrole@reduced graphene oxide@liquid metal (PGL) composites were successfully prepared through a simple approach as efficient microwave absorbing materials. The impedance matching performance of the composite was accurately adjusted by controlling the amount of graphene oxide (GO) and polypyrrole layer. The optimum PGL composite obtained a reflection loss of −46.81 dB at a low frequency of 2.17 GHz. This method provides a reference path in liquid metal-based non-magnetic microwave absorbing materials.

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3

Yang, Zhe Wei, Xin Fan, Li Ang Guo, and Wang Xing Jiang. "Polypyrrole/Graphene Oxide Composite Electrodes for High Energy Density Supercapacitor." Advanced Materials Research 904 (March 2014): 146–49. http://dx.doi.org/10.4028/www.scientific.net/amr.904.146.

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Polypyrrole/Graphene oxide composite material (PPy/GO) was synthesized using an in-situ chemical polymerization method. The formation of composite had been shown by the analysis of Fourier transfer of infrared spectroscopy and X-ray diffraction data. Scanning electron and transmission electron microscopy clearly showed sheet-like layered structure of graphite oxide surrounded by polypyrrole. Electrochemical properties were characterized by electrochemical station. We demonstrated the intercalation of conducting polypyrrole into the graphite sheets, and that as electrodes for supercapacitor, the PPy/GO composites (GO0.54) with PPy to GO mass ratio of 5:3 showed a competitive capacitance of 337 F g-1 at a scan rate of 2 mV s-1 than that of PPy alone. Given the electrical and electrochemical properties, we prospect that the PPy/GO composites should find applications in supercapacitors.

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4

Tan, Kai Jian, and Zhan Bo Yu. "Preparation and Characterization of Scalable and Multi-Functional High Conductivity Polymer Electrode Material." Advanced Materials Research 898 (February 2014): 64–67. http://dx.doi.org/10.4028/www.scientific.net/amr.898.64.

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High conductive and polymer composite has good electrical, mechanical and electrochemical properties which is a scalable, multi-functional composite material. It is widely used in electric vehicles, power storage and military fields. This article treats graphene as the working electrode self-supporting film and prepares the structures of the reduction of graphene-polypyrrole-Sulfonated graphene three-layer composite membrane using Polypyrrole electrochemical deposition method. From the electricity microscope, we can observe that the composite film have a closely structure which improves the electrical conductivity and mechanical properties of highly conductive polymer material. Finally, this paper studies the electrical properties of the composite film by the way of electrical experiment. From the experiment, we can conclude that in the voltage driver of 1V, the composite film has a better driving performance which can reach a rate of 198 / s. Its cycle life is up to 8000 times. This provides a new method for preparation and study of graphene conductive polymer composite.

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5

Bilal, Salma, Akhtar Ali Shah, Anwar ul Haq Ali Shah, Hajera Gul, Wahid Ullah, and Salma Gul. "Dodecylbenzenesulphonic Acid Doped Polypyrrole/Graphene Oxide Composite with Enhanced Electrical Conductivity." Journal of Scientific and Innovative Research 9, no. 2 (June 30, 2020): 54–62. http://dx.doi.org/10.31254/jsir.2020.9204.

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Polypyrrole/graphene oxide (PPyGO) composite was synthesized through in-situ emulsion oxidative polymerization method. The composite was simultaneously doped with dodecylbenzenesulphonic acid doped (DBSA). The reaction parameters were optimized in such a way to get the composite with best possible properties. Thus, the resulting composite showed enhanced conductivity that is 73 S/cm compared to DBSA doped polypyrrole (4.18 S/cm) and graphene oxide (0.57 S/cm). As, conductivity is very important characteristic for practical application of polymeric materials, so, this material with enhanced properties can be used for multiple purposes. It was further characterized through Fourier Transform infrared spectroscopy, X-Ray Diffraction Analysis, Scanning Electron Microscopy and Thermogravimetric Analysis, which showed the successful synthesis of the composite.

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6

Folorunso, Oladipo, Yskandar Hamam, Rotimi Sadiku, and Suprakas Sinha Ray. "Computational Study of Graphene–Polypyrrole Composite Electrical Conductivity." Nanomaterials 11, no. 4 (March 24, 2021): 827. http://dx.doi.org/10.3390/nano11040827.

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In this study, the electrical properties of graphene–polypyrrole (graphene-PPy) nanocomposites were thoroughly investigated. A numerical model, based on the Simmons and McCullough equations, in conjunction with the Monte Carlo simulation approach, was developed and used to analyze the effects of the thickness of the PPy, aspect ratio diameter of graphene nanorods, and graphene intrinsic conductivity on the transport of electrons in graphene–PPy–graphene regions. The tunneling resistance is a critical factor determining the transport of electrons in composite devices. The junction capacitance of the composite was predicted. A composite with a large insulation thickness led to a poor electrochemical electrode. The dependence of the electrical conductivity of the composite on the volume fraction of the filler was studied. The results of the developed model are consistent with the percolation theory and measurement results reported in literature. The formulations presented in this study can be used for optimization, prediction, and design of polymer composite electrical properties.

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7

Schirmer, K. S. U., D. Esrafilzadeh, B. C. Thompson, A. F. Quigley, R. M. I. Kapsa, and G. G. Wallace. "Conductive composite fibres from reduced graphene oxide and polypyrrole nanoparticles." Journal of Materials Chemistry B 4, no. 6 (2016): 1142–49. http://dx.doi.org/10.1039/c5tb02130h.

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8

Ma, Jun, Junaid Ali Syed, and Dongyun Su. "Hybrid Supercapacitors Based on Self-Assembled Electrochemical Deposition of Reduced Graphene Oxide/Polypyrrole Composite Electrodes." Journal of Nanoelectronics and Optoelectronics 16, no. 6 (June 1, 2021): 949–56. http://dx.doi.org/10.1166/jno.2021.3032.

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Conductive polymers (CPs) have potential application to commercial energy storage because of their high electrochemical activity and low cost. However, an obstacle in developing CP-based supercapacitors is the degradation in their capacitance during the charge-discharge process that leads to poor rate performance. This study fabricates layers of a high-performance self-assembled polypyrrole/reduced graphene oxide (PPY/RGO) composite material on a carbon cloth through electrochemical deposition. The layered graphene improved the electrochemical properties of PPY. Carbon fiber rods were coated with the PPY/RGO composite layer, the thickness of which depends on the deposition time. Adequate capacitive behaviors were achieved by using 16 layers of polypyrrole/reduced graphene oxide, with a specific capacitance of 490 F g−1 (0.6 A g−1) and good rate performance. The results here provide a novel means of preparing graphene-based nanocomposites films for a variety of functions. A symmetric device was subsequently assembled by using electrodes featuring 16 layers of the polypyrrole/reduced graphene oxide composite. It yielded a specific capacitance of 205 F g−1 and a high energy density of 16.4 Wh kg−1. It also exhibited good cycle stability, with a capacitance retention rate of 85% for 5,000 cycles.

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9

Liu, Xin Yi, Yue Li, Yan Zhao, Hai Peng Li, Fu Xing Yin, and Yong Guang Zhang. "In Situ Polymerization Synthesis of Ternary Sulfur/Polypyrrole/Graphene Nanosheet Cathode for Lithium/Sulfur Batteries." Materials Science Forum 847 (March 2016): 8–13. http://dx.doi.org/10.4028/www.scientific.net/msf.847.8.

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A novel sulfur/polypyrrole/graphene nanosheet composite (S/PPy/GNS) was synthesized and investigated as a promising cathode material. This ternary composite was prepared via in situ polymerization of pyrrole monomer with nanosulfur and GNS aqueous suspension followed by heat-treatment. Scanning electronic microscopy observation revealed the formation of a highly porous structure consisting sulfur and polypyrrole coating on the GNS surface. In this composite, GNS works as nanocurrent collector and enhances the conductivity of the composite, and polypyrrole with its high adhesion ability to GNS could act as a binder to connect sulfur and GNS. The resulting S/PPy/GNS composite cathode exhibits high and stable specific discharge capacities of 991 mAh g-1 after 50 cycles at 0.1 C and good rate capability.

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10

Du, Dongfeng, Xiaozhong Wu, Shuo Li, Yu Zhang, Wei Xing, Li Li, Qingzhong Xue, Peng Bai, and Zifeng Yan. "Remarkable supercapacitor performance of petal-like LDHs vertically grown on graphene/polypyrrole nanoflakes." Journal of Materials Chemistry A 5, no. 19 (2017): 8964–71. http://dx.doi.org/10.1039/c7ta00624a.

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11

Ge, Yu, Caiyun Wang, Kewei Shu, Chen Zhao, Xiaoteng Jia, Sanjeev Gambhir, and Gordon G. Wallace. "A facile approach for fabrication of mechanically strong graphene/polypyrrole films with large areal capacitance for supercapacitor applications." RSC Advances 5, no. 124 (2015): 102643–51. http://dx.doi.org/10.1039/c5ra21100j.

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12

Qin, Tianfeng, Boli Liu, Yuxiang Wen, Zilei Wang, Xinyu Jiang, Zunyuan Wan, Shanglong Peng, Guozhong Cao, and Deyan He. "Freestanding flexible graphene foams@polypyrrole@MnO2 electrodes for high-performance supercapacitors." Journal of Materials Chemistry A 4, no. 23 (2016): 9196–203. http://dx.doi.org/10.1039/c6ta02835g.

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A new composite electrode design was successfully fabricated based on 3D flexible graphene foams (GF) with interconnected macropores as the freestanding substrate and a composite of MnO₂ nanoparticles and polypyrrole (PPy) as an integrated electrode.

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13

Chabi, Sakineh, Chuang Peng, Zhuxian Yang, Yongde Xia, and Yanqiu Zhu. "Three dimensional (3D) flexible graphene foam/polypyrrole composite: towards highly efficient supercapacitors." RSC Advances 5, no. 6 (2015): 3999–4008. http://dx.doi.org/10.1039/c4ra13743d.

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14

LI, Na, Yinghong XIAO, Jia LU, Yanping WANG, Chongzheng XU, and Xiaodi YANG. "Supercapacitive of Carboxyl Graphene-Based Electroconductive Polypyrrole Composite." Acta Agronomica Sinica 30, no. 3 (2013): 354. http://dx.doi.org/10.3724/sp.j.1095.2013.20205.

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15

Liu, Anran, Chun Li, Hua Bai, and Gaoquan Shi. "Electrochemical Deposition of Polypyrrole/Sulfonated Graphene Composite Films." Journal of Physical Chemistry C 114, no. 51 (November 19, 2010): 22783–89. http://dx.doi.org/10.1021/jp108826e.

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16

Lim, Y. S., Y. P. Tan, H. N. Lim, W. T. Tan, M. A. Mahnaz, Z. A. Talib, N. M. Huang, A. Kassim, and M. A. Yarmo. "Polypyrrole/graphene composite films synthesized via potentiostatic deposition." Journal of Applied Polymer Science 128, no. 1 (June 25, 2012): 224–29. http://dx.doi.org/10.1002/app.38174.

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17

Xu, Lanshu, Mengying Jia, Yue Li, Shifeng Zhang, and Xiaojuan Jin. "Design and synthesis of graphene/activated carbon/polypyrrole flexible supercapacitor electrodes." RSC Advances 7, no. 50 (2017): 31342–51. http://dx.doi.org/10.1039/c7ra04566b.

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A ternary composite of graphene/activated carbon/polypyrrole (GN/AC/PPy) used as an electrode active material for supercapacitors has been synthesized via vacuum filtration and anodic constant current deposition methods.

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18

Song, Kai-li, Rui Li, Kun Li, and Hao Yu. "Simultaneous determination of dihydroxybenzene isomers using a three-dimensional over-oxidized polypyrrole–reduced graphene oxide composite film electrode prepared by an electrochemical method." New Journal of Chemistry 44, no. 46 (2020): 20294–302. http://dx.doi.org/10.1039/d0nj01613f.

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A 3D-over-oxidized polypyrrole–reduced graphene oxide composite film was prepared by an electrochemical procedure, which showed high electrochemical activity and good selectivity for simultaneous determination of dihydroxybenzene isomers.

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19

Salehifar, Nahideh, Javad Shabani Shayeh, Seyed Omid Ranaei Siadat, Kaveh Niknam, Ali Ehsani, and Siavash Kazemi Movahhed. "Electrochemical study of supercapacitor performance of polypyrrole ternary nanocomposite electrode by fast Fourier transform continuous cyclic voltammetry." RSC Advances 5, no. 116 (2015): 96130–37. http://dx.doi.org/10.1039/c5ra18694c.

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The supercapacitive behavior of polypyrrole/reduced graphene oxide/Au nanoparticles as a ternary composite electrode was studied by CV, galvanostatic charge/discharge, EIS and fast Fourier transform continuous cyclic voltammetry techniques.

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20

Pothipor, Chammari, Noppadol Aroonyadet, Suwussa Bamrungsap, Jaroon Jakmunee, and Kontad Ounnunkad. "A highly sensitive electrochemical microRNA-21 biosensor based on intercalating methylene blue signal amplification and a highly dispersed gold nanoparticles/graphene/polypyrrole composite." Analyst 146, no. 8 (2021): 2679–88. http://dx.doi.org/10.1039/d1an00116g.

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An ultrasensitive electrochemical biosensor based on a gold nanoparticles/graphene/polypyrrole composite modified electrode and a signal amplification strategy employing methylene blue is developed as a potential tool for the detection of miRNA-21.

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21

Loryuenyong, Vorrada, Jiravadee Sukitpong, Chutisa Nakpong, Anucha Khadthiphong, and Achanai Buasri. "Platinum-Free Counter Electrodes Comprised of Polypyrrole-Graphene Composite." Nanoscience and Nanotechnology Letters 10, no. 5 (May 1, 2018): 717–21. http://dx.doi.org/10.1166/nnl.2018.2645.

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22

WANG, YiRan, YuJin CHEN, and ChunLing ZHU. "Electromagnetic wave absorption property of polypyrrole nanowires/graphene composite." SCIENTIA SINICA Physica, Mechanica & Astronomica 47, no. 12 (June 12, 2017): 127201. http://dx.doi.org/10.1360/sspma2017-00003.

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23

Bora, Chandramika, Jahnabi Sharma, and Swapan Dolui. "Polypyrrole/Sulfonated Graphene Composite as Electrode Material for Supercapacitor." Journal of Physical Chemistry C 118, no. 51 (December 8, 2014): 29688–94. http://dx.doi.org/10.1021/jp511095s.

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24

Liu, Yan, Yao Zhang, Guoheng Ma, Zan Wang, Kaiyu Liu, and Hongtao Liu. "Ethylene glycol reduced graphene oxide/polypyrrole composite for supercapacitor." Electrochimica Acta 88 (January 2013): 519–25. http://dx.doi.org/10.1016/j.electacta.2012.10.082.

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25

Yang, Yang, Caiyun Wang, Binbin Yue, Sanjeev Gambhir, Chee O. Too, and Gordon G. Wallace. "Electrochemically Synthesized Polypyrrole/Graphene Composite Film for Lithium Batteries." Advanced Energy Materials 2, no. 2 (January 19, 2012): 266–72. http://dx.doi.org/10.1002/aenm.201100449.

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26

Folorunso, Oladipo, Yskandar Hamam, Rotimi Sadiku, Suprakas Sinha Ray, and Gbolahan Joseph Adekoya. "Comparative study of graphene-polypyrrole and borophene-polypyrrole composites: molecular dynamics modeling approach." Engineering Solid Mechanics 9, no. 3 (2021): 311–22. http://dx.doi.org/10.5267/j.esm.2021.1.006.

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In the search for the solution to energy storage problems, this study investigates the interfacial energy interaction and temperature stability of the composites made of polypyrrole-graphene-borophene (PPy-Gr-Bon) by using molecular dynamics simulations. From the calculated thermodynamics and interfacial energies of the system, comparisons between the ternary and the binary-binary systems were made. The materials in the entity show a good degree of temperature stability to a dynamic process at 300, 350, 400, and 450 K. Moreso, at 300 K, the interaction energy of PPy-Gr, PPy-Bon, and PPy-Gr-Bon are: -5.621e3 kcal/mol, -26.094e3 kcal/mol, and -28.206e3 kcal/mol respectively. The temperature stability of the systems is in the order of: PPy-Gr-Bon > PPy-Bon > PPy-Gr. The effect of temperature on the interaction energy of the systems was also investigated. The ternary system showed higher stability as the temperature increased. In addition, the radial distribution function computed for the three systems revealed that there is a strong, but non-chemical bonding interaction between PPy-Gr-Bon, Bon-PPy, and Gr-PPy. By considering the excellent mechanical properties of PPy-Gr-Bon and the already established high electrical conductivity and chemical stability of Gr, Bon and PPy, their composite is therefore suggested to be considered for the manufacturing of electrochemical electrodes.

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27

Fan, Xin, Zhewei Yang, and Nan He. "Hierarchical nanostructured polypyrrole/graphene composites as supercapacitor electrode." RSC Advances 5, no. 20 (2015): 15096–102. http://dx.doi.org/10.1039/c4ra15258a.

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28

Zhang, Fei-Fei, Chun-Li Wang, Gang Huang, Dong-Ming Yin, and Li-Min Wang. "Enhanced electrochemical performance by a three-dimensional interconnected porous nitrogen-doped graphene/carbonized polypyrrole composite for lithium–sulfur batteries." RSC Advances 6, no. 31 (2016): 26264–70. http://dx.doi.org/10.1039/c6ra02667b.

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29

Wu, Ren Jang, and Mei Yun Chen. "Fast Detection of Local Anesthetic Ropivacaine by Impedance Method on Polypyrrole-Graphene Oxide." Advanced Materials Research 650 (January 2013): 49–53. http://dx.doi.org/10.4028/www.scientific.net/amr.650.49.

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A rapid detection of the local anesthetic ropivacaine was measured by electrochemical impedance method. Polypyrrole (Ppy) and polypyrrole (Ppy)-graphene oxide (GO) composites were prepared by electrochemical polymerization on the gold electrode as the working electrode. The electrochemical properties of the Ppy and Ppy-GO composites electrode were characterized by transmission electron microscopy (TEM), scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR). Various concentrations from 1 to 20 ppm of ropivacaine were prepared in 0.9% NaCl as the sample solution. Prepared Ppy and Ppy-GO were used as working electrodes, and the sample solution had been measured for a sinusoidal excitation in the frequency range of 100 Hz to 1 MHz. It exhibited the better linearity (R2=0.973) of Ppy/1% GO than Ppy (R2=0.882) from 1 to 20 ppm when the frequency fixed in 100 kHz. All the response and recovery time of 0.1 ppm local anesthetic ropivacaine can be detection in this system within 1 sec, it will be a promising composite material on electrochemical electrode.

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30

Hajebi, Nima, Shahram Seidi, Majid Ramezani, and Mahshid Manouchehri. "Electrospun polyamide/graphene oxide/polypyrrole composite nanofibers: an efficient sorbent for headspace solid phase microextraction of methamphetamine in urine samples followed by GC-MS analysis." New Journal of Chemistry 44, no. 34 (2020): 14429–37. http://dx.doi.org/10.1039/d0nj03240a.

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31

Xiaomiao Feng, Ruimei Li, Zhenzhen Yan, Xingfen Liu, Runfeng Chen, Yanwen Ma, Xing'ao Li, Quli Fan, and Wei Huang. "Preparation of Graphene/Polypyrrole Composite Film via Electrodeposition for Supercapacitors." IEEE Transactions on Nanotechnology 11, no. 6 (November 2012): 1080–86. http://dx.doi.org/10.1109/tnano.2012.2200259.

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32

Cernat, Andreea, Mihaela Tertiș, Claudia Nicoleta Păpară, Ede Bodoki, and Robert Săndulescu. "Nanostructured Platform Based on Graphene-polypyrrole Composite for Immunosensor Fabrication." Procedia Technology 27 (2017): 108–9. http://dx.doi.org/10.1016/j.protcy.2017.04.047.

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33

Liu, Xuejiao, Qinfeng Zou, Tianhao Wang, and Liping Zhang. "Electrically Conductive Graphene-Based Biodegradable Polymer Composite Films with High Thermal Stability and Flexibility." Nano 13, no. 03 (March 2018): 1850033. http://dx.doi.org/10.1142/s1793292018500339.

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Cellulose nanofibril (CNF) and graphene (GR) powder were added into polylactic acid (PLA)/polypyrrole (PPy) composite films via a low-cost, eco-friendly, low-temperature, and in-situ polymerization synthesis, which obtain novel flexible and conductive polylacticacid-cellulose nanofibril-graphene/polypyrrole (PLA–CNF–GR/PPy) composite films. The CNF was embedded in the PLA matrix to enhance the mechanical properties. Remarkably, when a few GR (1%) powder was added, the tensile strength of composite films increased by 5.6%, respectively, compared with pure PLA–CNF, and increased by 17.6% compared with the PLA. The GR and CNF had a positive influence on mechanical properties of composite films. In addition, the PLA–CNF–GR/PPy composite films exhibited many unique properties when GR powder was introduced, including high thermal stability, and especially electrical conductivity. The electrical conductivity of the PLA–CNF–GR/PPy composite films increased from 0.12 to 1.06[Formula: see text]S/cm as the content of GR powder increased from 0 to 10%. The PLA–CNF–GR-10/PPy also demonstrated excellent flexible stability, only 7.5% deviation after over 100 bending cycles. Furthermore, we designed and found that the exploration of a flexible solid-state supercapacitor assembled with PLA–CNF–GR-10/PPy composite electrodes had a capacitance of 30[Formula: see text]F/g at a current density of 0.5[Formula: see text]A/g. Although it was not quite as prominent as the capacitance, it provided an innovative means for preparing the conductive composite films. Based on these advantages the PLA–CNF–GR/PPy could be considered as sensors, flexible electrodes, and flexible displays. It also opens a new field of potential applications of biodegradable materials.

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34

Kulandaivalu, Shalini, Mohd Zobir Hussein, Adila Mohamad Jaafar, Muhammad Amirul Aizat Mohd Abdah, Nur Hawa Nabilah Azman, and Yusran Sulaiman. "A simple strategy to prepare a layer-by-layer assembled composite of Ni–Co LDHs on polypyrrole/rGO for a high specific capacitance supercapacitor." RSC Advances 9, no. 69 (2019): 40478–86. http://dx.doi.org/10.1039/c9ra08134h.

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A facile and novel electrode material of nickel–cobalt layered double hydroxides (Ni–Co LDHs) layered on polypyrrole/reduced graphene oxide (PPy/rGO) is fabricated for a symmetrical supercapacitor via chemical polymerization, hydrothermal and vacuum filtration.

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35

Qin, SHI, MEN Chun-Yan, and LI Juan. "Preparation and Electrochemical Capacitance Properties of Graphene Oxide/Polypyrrole Intercalation Composite." Acta Physico-Chimica Sinica 29, no. 08 (2013): 1691–97. http://dx.doi.org/10.3866/pku.whxb201306031.

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36

An, J., J. Liu, Y. Ma, R. Li, M. Li, M. Yu, and S. Li. "Fabrication of graphene/polypyrrole nanotube/MnO2nanotube composite and its supercapacitor application." European Physical Journal Applied Physics 58, no. 3 (July 2012): 30403. http://dx.doi.org/10.1051/epjap/2012120157.

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37

Folorunso, Oladipo, Yskandar Hamam, Rotimi Sadiku, Suprakas Sinha Ray, and Gbolahan Joseph Adekoya. "Statistical characterization and simulation of graphene-loaded polypyrrole composite electrical conductivity." Journal of Materials Research and Technology 9, no. 6 (November 2020): 15788–801. http://dx.doi.org/10.1016/j.jmrt.2020.11.045.

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38

Barakzehi, Marjan, Majid Montazer, Farhad Sharif, Truls Norby, and Athanasios Chatzitakis. "A textile-based wearable supercapacitor using reduced graphene oxide/polypyrrole composite." Electrochimica Acta 305 (May 2019): 187–96. http://dx.doi.org/10.1016/j.electacta.2019.03.058.

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39

Lv, Bing, Xingtong Chen, and Chunguo Liu. "A Highly Sensitive Piezoresistive Pressure Sensor Based on Graphene Oxide/Polypyrrole@Polyurethane Sponge." Sensors 20, no. 4 (February 23, 2020): 1219. http://dx.doi.org/10.3390/s20041219.

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In this work, polyurethane sponge is employed as the structural substrate of the sensor. Graphene oxide (GO) and polypyrrole (PPy) are alternately coated on the sponge fiber skeleton by charge layer-by-layer assembly (LBL) to form a multilayer composite conductive layer to prepare the piezoresistive sensors. The 2D GO sheet is helpful for the formation of the GO layers, and separating the PPy layer. The prepared GO/PPy@PU (polyurethane) conductive sponges still had high compressibility. The unique fragmental microstructure and synergistic effect made the sensor reach a high sensitivity of 0.79 kPa−1. The sensor could detect as low as 75 Pa, exhibited response time less than 70 ms and reproducibility over 10,000 cycles, and could be used for different types of motion detection. This work opens up new opportunities for high-performance piezoresistive sensors and other electronic devices for GO/PPy composites.

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40

Park, Jiyoung, and Seok Kim. "Synthesis and electrochemical analysis of Pt-loaded, polypyrrole-decorated, graphene-composite electrodes." Carbon letters 14, no. 2 (April 30, 2013): 117–20. http://dx.doi.org/10.5714/cl.2013.14.2.117.

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Wang, Rui, Hong You, Yingjie Zhang, Zhipeng Li, Yi Ding, Qiqing Qin, Han Wang, et al. "Constructing (reduced) graphene oxide enhanced polypyrrole /ceramic composite membranes for water remediation." Journal of Membrane Science 659 (October 2022): 120815. http://dx.doi.org/10.1016/j.memsci.2022.120815.

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Li, Jing, Huaqing Xie, and Yang Li. "Fabrication of graphene oxide/polypyrrole nanowire composite for high performance supercapacitor electrodes." Journal of Power Sources 241 (November 2013): 388–95. http://dx.doi.org/10.1016/j.jpowsour.2013.04.144.

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Chandra, Vimlesh, and Kwang S. Kim. "Highly selective adsorption of Hg2+ by a polypyrrole–reduced graphene oxide composite." Chemical Communications 47, no. 13 (2011): 3942. http://dx.doi.org/10.1039/c1cc00005e.

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Yang, Jianbo, Xingxiang Ji, Libin Liu, Yu Xiang, and Yaling Zhu. "One step fabrication of graphene/polypyrrole/Ag composite electrode towards compressible supercapacitor." Journal of Alloys and Compounds 820 (April 2020): 153081. http://dx.doi.org/10.1016/j.jallcom.2019.153081.

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Jiang, Li-li, Xiong Lu, Chao-ming Xie, Guo-jiang Wan, Hong-ping Zhang, and Tang Youhong. "Flexible, Free-Standing TiO2–Graphene–Polypyrrole Composite Films as Electrodes for Supercapacitors." Journal of Physical Chemistry C 119, no. 8 (February 16, 2015): 3903–10. http://dx.doi.org/10.1021/jp511022z.

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Zhang, Yun, Jianqiang Zhang, Liu Wan, Yuhong Ma, Tongxiang Liang, Xiaocheng Li, and Lingbin Kong. "Construction of 3D polypyrrole/CoS/graphene composite electrode with enhanced pseudocapacitive performance." Ionics 24, no. 9 (January 4, 2018): 2689–96. http://dx.doi.org/10.1007/s11581-017-2412-3.

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Fan, Le-Qing, Gui-Jing Liu, Ji-Huai Wu, Lu Liu, Jian-Ming Lin, and Yue-Lin Wei. "Asymmetric supercapacitor based on graphene oxide/polypyrrole composite and activated carbon electrodes." Electrochimica Acta 137 (August 2014): 26–33. http://dx.doi.org/10.1016/j.electacta.2014.05.137.

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Zou, Jing, Xinhong Song, Jiaojiao Ji, Weici Xu, Jinmei Chen, Yaqi Jiang, Yiru Wang, and Xi Chen. "Polypyrrole/graphene composite-coated fiber for the solid-phase microextraction of phenols." Journal of Separation Science 34, no. 19 (August 8, 2011): 2765–72. http://dx.doi.org/10.1002/jssc.201100303.

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Zhao, Chen, Kewei Shu, Caiyun Wang, Sanjeev Gambhir, and Gordon G. Wallace. "Reduced graphene oxide and polypyrrole/reduced graphene oxide composite coated stretchable fabric electrodes for supercapacitor application." Electrochimica Acta 172 (August 2015): 12–19. http://dx.doi.org/10.1016/j.electacta.2015.05.019.

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Zhu, Mo, Ying Hao, Xun Ma, Lin Feng, Yuanxin Zhai, Yaping Ding, and Guosheng Cheng. "Construction of a graphene/polypyrrole composite electrode as an electrochemically controlled release system." RSC Advances 9, no. 22 (2019): 12667–74. http://dx.doi.org/10.1039/c9ra00800d.

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