Article
Chemistry, Physical
Monika Rdest, Dawid Janas
Summary: Combining single-walled carbon nanotubes with polyethyleneimine can significantly enhance the electrical conductivity of the material, offering a promising approach for developing high-performance conducting materials.
Article
Chemistry, Physical
Zan Li, Duo Jiang, Jiayan Gong, Yi Li, Ping Fu, Yunfei Zhang, Feipeng Du
Summary: This study demonstrates the facile preparation of stable n-type silver ammonia-polyethyleneimine/single-walled carbon nanotube composite films. The light silver ammonia doping optimizes the carrier concentration and carrier mobility, resulting in a higher power factor for the composite film. The study also shows the potential of the composite film in flexible electronics.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Zhi-Xiang Xia, Gui-Sen Tian, Wan-Xin Xian-Yu, Xiao Huang, Ping Fu, Yun-Fei Zhang, Fei-Peng Du
Summary: In this study, the microstructure and thermoelectric properties of n-type SWCNT-based films were improved through the doping of TEG-C60 into PEI/SWCNT films. The TEG-C60/PEI/SWCNT films exhibited the best thermoelectric performance and good air stability. The flexible TE device assembled using the optimum hybrid film demonstrated a high output power.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Po-Shen Lin, Jhih-Min Lin, Shih-Huang Tung, Tomoya Higashihara, Cheng-Liang Liu
Summary: This study focuses on the fabrication of nanocomposite thermoelectric devices by blending polymers with carbon nanotubes and doping them to alter their conductivity properties. Various analyses were performed to understand the effects of polymer-SWCNT interactions on the doping outcomes. The NDI-T1/SWCNT nanocomposite exhibited the best electrical performance, while an integral thermoelectric generator using different polymers achieved an output power of 27.2 nW.
Article
Chemistry, Multidisciplinary
Tae-Hoon Kim, Jae Gyu Jang, Sung Hyun Kim, Jong-In Hong
Summary: Hybridizing pi-conjugated organic small molecules with single-walled carbon nanotubes allows for the production of high-performance thermoelectric materials. This approach involves optimizing the molecular geometry and energy levels of the organic molecules to enhance their thermoelectric properties when combined with carbon nanotubes. The study demonstrates the potential for creating efficient thermoelectric materials through the hybridization of these two materials.
Article
Nanoscience & Nanotechnology
Jueshuo Fan, Xiaodong Wang, Fusheng Liu, Zhijun Chen, Guangming Chen
Summary: The study prepared thermoelectric composites using a covalent-bond grafting method between tin selenide and single-walled carbon nanotubes, achieving an optimized power factor and assembling a flexible thermoelectric generator, opening a new avenue for the design of high-performance thermoelectric composites and flexible TEGs.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Yang Li, Cai-Yan Gao, Xin-Heng Fan, Lian-Ming Yang
Summary: This study developed a high-performance polypyrrole (PPy)/single-walled carbon nanotube (SWCNT) composite material through in-situ electrochemical polymerization of pyrrole on a pre-fabricated SWCNT membrane electrode. By adopting pulse galvanostatic electropolymerization (PGEP) technology for interface engineering, the TE performance of the composite film was significantly improved, achieving excellent power factor and figure of merit.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Composites
Xiuxiu Nie, Xinxin Li, Yueting Huang, Jiatao Wu, Fan Yang, Fei Zhong, Hong Xin, Chunmei Gao, Lei Wang
Summary: The study demonstrated that the introduction of E7 eutectic nematic mixture can significantly improve the thermoelectric performance of SWCNT composite materials, including increasing the Seebeck coefficient and power factor. Furthermore, after doped with triethylamine, SWCNT/E7 composites can convert from p-type to n-type.
COMPOSITES COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Sixing Yin, Wentao Lu, Xin Wu, Qunyi Luo, Erqiang Wang, Cun-Yue Guo
Summary: Fabricating flexible high-performance PANI/SWCNT TE composites by dynamic 3-phase interfacial electropolymerization of aniline and physical mixing with SWCNTs, the addition of DMSO and varying loadings of SWCNTs show significant enhancements in TE performance. The composites exhibit the highest power factor of 236.4 +/- 5.9 μWm(-1)K-2 at room temperature, demonstrating the effectiveness of introducing DMSO into the electrolyte for fabricating high-performance TE composites.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Zhijun Chen, Yutao Cui, Lirong Liang, Hanfu Wang, Wei Xu, Qichun Zhang, Guangming Chen
Summary: This study prepares a flexible composite film by covalently bonding single-walled carbon nanotubes (SWCNTs) with porous metal-organic frameworks (MOFs), demonstrating good flexibility and p-type thermoelectric characteristics. Furthermore, a flexible thermoelectric device connected by multiple films in series generates high open-circuit voltage and maximum power.
MATERIALS TODAY NANO
(2022)
Article
Chemistry, Multidisciplinary
Cordelia Zimmerer, Frank Simon, Sascha Putzke, Astrid Drechsler, Andreas Janke, Beate Krause
Summary: This study presents a bio-inspired, environmentally friendly technique for metallization of single-walled carbon nanotubes (SWCNTs) using polydopamine (PDA) as an adhesion promoter and electroless plating with nickel. The results showed that prior oxidation of SWCNTs significantly improved the distribution of PDA and nickel. The PDA layer acted as a p-dopant, increasing the Seebeck coefficient of SWCNTs. However, the subsequent metallization decreased the Seebeck coefficient, indicating a need for further optimization.
Article
Engineering, Environmental
Guibin Cao, Guoliang He, Lijun Lu, Qiangqiang Zhang, Yibin Yan, Xuyan Tang, Jiatao Wu, Shichao Wang, Lei Wang, Chunmei Gao
Summary: In recent years, there has been growing interest in stretchable conductive composites for flexible electronics. While organic p-type composites have made great progress, organic n-type composites are relatively unexplored. In this study, lysine and waterborne polyurethane were introduced into single-walled carbon nanotubes, resulting in a stretchable n-type composite with high thermoelectric performance. The composite showed a high power factor and good stretchability, and also demonstrated excellent temperature resolution and response stability when used as a sensor.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Jianpeng Fang
Summary: In this study, the interfacial properties of PEI-CNT-CF/PP composite were improved by coating PEI modified CNTs onto the surface of CF to form a network structure. The network formation changed the chemical characteristics and compatibility of CF surface and induced transcrystallization at the interface. These improvements led to increased interfacial shear strength and enhanced tensile and flexural strength of the composite.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Composites
Yunfei Zhang, Siying Chen, Hui Zhang, Xinyue Ding, Ping Fu, Feipeng Du
Summary: APA is a conjugated triblock copolymer that has typical n-type properties and good solubility, making it a suitable n-type dopant for tuning thermoelectric properties of SWCNTs. The APA/SWCNT composites showed enhanced thermoelectric performance, with maximum Seebeck coefficient at 125 degrees C and highest power factor at 100 degrees C.
COMPOSITES COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Zakaria Saadi, Simon G. King, Jose Anguita, Vlad Stolojan, S. Ravi P. Silva
Summary: Thermoelectric materials offer a promising solution for recovering wasted energy, but their efficiency is low and the best materials are brittle, toxic, and expensive. This study demonstrates that flexible films of double-walled carbon nanotubes can achieve low thermal conductivity and high electrical conductivity, leading to the development of flexible, cheaper, and more efficient thermoelectric generators.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
