欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
用共沉淀方法制备出平均粒径在10nm左右的Fe3O4纳米粒子，然后在阳离子表面活性剂的引导下采用原位化学氧化聚合法，合成出聚吡咯-Fe3O4纳米复合材料．同时对此纳米复合材料的结构和性能进行了研究．结果表明Fe3O4纳米粒子和聚吡咯之间存在着一定的相互作用，从而有利于吡咯单体在Fe3O4纳米粒子的表面发生聚合反应，进而Fe3O4纳米粒子被聚吡咯所包覆．聚吡咯／Fe3O4纳米复合材料同时具有导电性和磁性，其导电性随着Fe3O4纳米粒子含量的增加先增大后减小，磁性则始终随着Fe3O4纳米粒子含量的增加而增大．
英文摘要：
The Fe3O4 nanoparticles with about 10 nm average diameter were firstly prepared with codeposition method, then the polypyrrole （PPy）-Fe3O4 nanocomposites were synthesized in the suspen- sion solution of Fe3O4 nanoparticles via in situ chemical oxidative polymerization under the direction of cationic surfactant. Meanwhile, the structures and properties of the nanocomposites were studied. The results show that there are interactions between Fe3O4 nanoparticles and PPy, which makes that pyrrole monomer polymerize preferentially at the surfaces of the Fe3O4 nanoparticles so that the Fe3O4 nanoparticles are coated by PPy. The nanocomposites have both conductibility and magnetic performance. As the Fe3O4 content is gradually improved, the conductivity firstly enhances and then decreases, however, the saturation magnetization enhances all through.
同期刊论文项目
同项目期刊论文
The effect of platinum in a Nafion membrane on the durability of the membrane under fuel cell condit
The preparation technique optimization of epoxy/compressed expanded graphite composite bipolar plate
Enhanced long-term durability of proton exchange membrane fuel cell cathode by employing Pt/TiO2/C c
Preparation and properties of thin epoxy/compressed expanded graphite composite bipolar plates for p
Chromium-containing carbon film on stainless steel as bipolar plates for proton exchange membrane fu
MnO2/SiO2-SO3H nanocomposite as hydrogen peroxide scavenger for durability improvement in proton exc
Electrochemical Capacitance of Composites with MnOx Loaded on the Surface of Activated Carbon Electr
The electrical resistance of flexible graphite as flowfield plate in proton exchange membrane fuel c
The voltage characteristics of proton exchange membrane fuel cell (PEMFC) under steady and transient
Catalytic hydrogen/oxygen reaction assisted the proton exchange membrane fuel cell (PEMFC) startup a
The effect of air stoichiometry change on the dynamic behavior of a proton exchange membrane fuel ce
Coated 316L stainless steel with CrxN film as bipolar plate for PEMFC prepared by pulsed bias arc io
Characteristics of liquid droplet motion at gas diffusion layer/gas flow channel interface in PEM fu
Characteristics of polyethersulfone/sulfonated polyimide blend membrane for proton exchange membrane
Facilitating mass transport in gas diffusion layer of PEMFC by fabricating micro-porous layer with d
Study of the cell reversal process of large area proton exchange membrane fuel cells under fuel star
Cesium substituted 12-tungstophosphoric (CsxH3-xPW12O40) loaded on ceria-degradation mitigation in p
Carbon-based films coated 316L stainless steel as bipolar plate for proton exchange membrane fuel ce
Potential dependence of sulfur dioxide poisoning and oxidation at the cathode of proton exchange mem
Optimized Cr-nitride film on 316L stainless steel as proton exchange membrane fuel cell bipolar plat
Research of modification of stainless steel bipolar plates with Cr1-xNx films deposited by arc ion p
Challenging reinforced composite polymer electrolyte membranes based on disulfonated poly(arylene et
Erratum to "Sulfonated polyimide/PTFE reinforced membrane for PEMFCs" [J. Power Sources 167 (2007) 4
Electrochemical impedance investigation of proton exchange membrane fuel cells experienced subzero t
The oxidation resistance of tungsten carbide as catalyst support for proton exchange membrane fuel c
Cs2.5H0.5PWO40/SiO2 as addition self-humidifying composite membrane for proton exchange membrane fue
Investigation of the Ag-SiO2/sulfonated poly(biphenyl ether sulfone) composite membranes for fuel ce
A novel carbon supported PtAuFe as CO-tolerant anode catalyst for proton exchange membrane fuel cell
期刊信息
位置：