نتایج جستجو برای: polyaniline fe2o3

تعداد نتایج: 6594  

Journal: :ACS nano 2009
Da-Wei Wang Feng Li Jinping Zhao Wencai Ren Zhi-Gang Chen Jun Tan Zhong-Shuai Wu Ian Gentle Gao Qing Lu Hui-Ming Cheng

Freestanding and flexible graphene/polyaniline composite paper was prepared by an in situ anodic electropolymerization of polyaniline film on graphene paper. This graphene-based composite paper electrode, consisting of graphene/polyaniline composite sheets as building blocks, shows a favorable tensile strength of 12.6 MPa and a stable large electrochemical capacitance (233 F g(-1) and 135 F cm(...

2011
Hirotsugu Kawashima Hiromasa Goto

Oxidative polymerization of aniline in aqueous solution in the presence of trehalose was conducted. Fourier transform infrared spectroscopy confirmed successful preparation of polyaniline containing a trace amount of trehalose. Electron spin resonance spectroscopy revealed that electron spin concentration of the polyaniline increases with aniline/trehalose ratio in the polymerization. Scanning ...

2017
Bin Qu Yue Sun Lianlian Liu Chunyan Li Changjian Yu Xitian Zhang Yujin Chen

Coupling ultrasmall Fe2O3 particles (~4.0 nm) with the MoS2 nanosheets is achieved by a facile method for high-performance anode material for Li-ion battery. MoS2 nanosheets in the composite can serve as scaffolds, efficiently buffering the large volume change of Fe2O3 during charge/discharge process, whereas the ultrasmall Fe2O3 nanoparticles mainly provide the specific capacity. Due to bigger...

2016
Chen Wang Tianshuang Wang Boqun Wang Xin Zhou Xiaoyang Cheng Peng Sun Jie Zheng Geyu Lu

A novel tubular NiO nanostructure was synthesized by a facile and low-cost hydrothermal strategy and then further functionalized by decorating α-Fe2O3 nanorods. The images of electron microscopy indicated that the α-Fe2O3 nanorods were assembled epitaxially on the surfaces of NiO nanotubes to form α-Fe2O3/NiO nanotubes. As a proof-of-concept demonstration of the function, gas sensing devices we...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
abdolmajid bayandori moghaddam samanesadat hosseini jalil badraghi aghdas banaei

cofe2o4 magnetic nano particles (mnps) were synthesized by an efficient method in aqueous medium with the particle sizes of about 20-50 nm. then, a hybrid nanocomposite of polyaniline (pani)-cofe2o4 mnps has been electrodeposited directly on a stainless steel wire by the potentiostatic method. microscopic images of electrodeposited pani and pani-cofe2o4 nanocomposite coatings were obtained by s...

Journal: :Nanoscale 2014
Xiaopeng Qi Guangwei She Xing Huang Taiping Zhang Huimin Wang Lixuan Mu Wensheng Shi

Many narrow band-gap semiconductors cannot fulfil the energetic requirements for water splitting, thus the assistance of large external voltages to complete the water decomposition reaction is required. Through thermal decomposition of Fe(NO3)3 on n-Si nanowires prepared by the chemical etching method, we fabricated a high-performance n-Si/α-Fe2O3 core/shell nanowire array photoanode that exhib...

2016
Mengmeng Rui Chuanxin Ma Yi Hao Jing Guo Yukui Rui Xinlian Tang Qi Zhao Xing Fan Zetian Zhang Tianqi Hou Siyuan Zhu

Nanomaterials are used in practically every aspect of modern life, including agriculture. The aim of this study was to evaluate the effectiveness of iron oxide nanoparticles (Fe2O3 NPs) as a fertilizer to replace traditional Fe fertilizers, which have various shortcomings. The effects of the Fe2O3 NPs and a chelated-Fe fertilizer (ethylenediaminetetraacetic acid-Fe; EDTA-Fe) fertilizer on the g...

2011
Fiona M. Blighe Dermot Diamond Jonathan N. Coleman Emer Lahiff

We have prepared high surface area, conductive, mechanically robust, responsive polyaniline-carbon nanotune composite films. These were produced by filtration from dilute dispersions of polyaniline nanofibers and single-walled carbon nanotubes. Unlike polyaniline alone, these composites are mechanically stable, maintain large intractable surfaces and exhibit greatly enhanced response/recovery b...

Journal: :Chemical communications 2005
Sunil K Pillalamarri Frank D Blum Massimo F Bertino

Polyaniline-gold nanocomposites containing polyaniline nanostructures attached to well-dispersed uniform-size gold nanoparticles were obtained using a surface initiation approach.

2013
Wancheng Zhu Xili Cui Xiaofei Liu Liyun Zhang Jia-Qi Huang Xianglan Piao Qiang Zhang

Hollow or porous hematite (α-Fe2O3) nanoarchitectures have emerged as promising crystals in the advanced materials research. In this contribution, hierarchical mesoporous α-Fe2O3 nanoarchitectures with a pod-like shape were synthesized via a room-temperature coprecipitation of FeCl3 and NaOH solutions, followed by a mild hydrothermal treatment (120°C to 210°C, 12.0 h). A formation mechanism bas...

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