XPS剖面分析采用聚二甲基硅烷(PDMS)和二茂铁合成出聚铁碳硅烷(PFCS),后者经熔融纺丝、预氧化、烧成,可制得电阻率低至10-2Ω·cm、拉伸强度2.0GPa、长度>500m的连续Si—Fe-C-O 纤维.探索了连续Si-Fe-C-O纤维的制备工艺.研究了铁对纤维电阻率和β-SiC结晶的影响: 铁含量的增加有利于β-SiC晶粒的增长和...
结果表明,SiO0.6电极的不可逆平台对应于不可逆块状锂化,但在Si中有表面SEI的形成,在电位高于0.55 V时没有发生大块的锂化。如图2c和d中的XPS深度剖面进一步证实了TOF-SIMS的观测结果,在Ar+溅射12 s后,Si电极中的Li 1s信号消失,而在SiO0.6电极中,Li 1s...
γ-Fe2O3/碳纳米管复合材料的化学气相法制备及磁性 利用化学气相沉积法,以二茂铁和水为原料,在碳纳米管表面包覆氧化铁纳米颗粒,制备出磁性氧化铁/碳纳米管复合材料.采用x射线衍射(XRD),X射线光电子能谱(XPS),扫描电镜(S... 梁先庆,刘伟,李苞 - 《磁性材料及器件》 被引量: 0发表: 2012年 ...
An XPS investigation on the thermal stability of the insulating surface layer of soft magnetic composite powder Surf. Interface Anal., 48 (7) (2016), pp. 445-450 CrossrefView in ScopusGoogle Scholar [24] B. Meng, J. Hou, F. Ning, B. Yang, B. Zhou, R. Yu Low-loss and high-indu...
An XPS-study of Fe (45 a/o) X-alloys, X = Al, Si, Ga, Ge, As, Sn, and Sb, is reported. The binding energy shifts in FeX are 0.9 eV and 0.6 eV for Al and Ga, respectively, 0.3 eV for As and Sb and zero for Si, Ge, Sn and Fe. The shifts for Al and Ga are ...
Nanosized Ce_(0.85)M_(0.1)Ru_(0.05)O_(2-δ) (M = Si, Fe) has been synthesized using a low temperature sonication method and characterized using XRD, TEM, XPS and H2-TPR. The potential application of both the solid solutions has been explored as exhaust catalysts by performing CO ...
(FT-IR) spectroscopy, Scanning Electron Microscope/Energy Dispersive X-ray (SEM/EDX), elemental mapping, Transmission Electron Microscope (TEM), Thermogravimetric (TG), Powder X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Brunauer-Emmett-Teller (BET), and Electron Paramagnetic ...
XPS SPECTRANANOPARTICLESCOMPOSITEALLOYSilicon/carbon composites have been considered as the anode material of choice for improving the energy density of lithium-ion batteries (LIBs). The carbon-based matrices not only can provide a conductive network for Si, but can also mitigate the bulk expansion ...
The Fe 2p core level XPS spectra for the Fe_3O_4 films on MgO (100) and Si (100) shows different binding energies of the Fe~(2+) and Fe~(3+) cations depending on their site symmetry i.e. whether in octahedral or tetrahedral site in the spinel crystal structure. Observed difference...
mechanical alloyingMossbauer spectroscopyFe3Si–Al2O3 nanocomposite has been prepared by mechanical alloying of Fe3O4, Al and Si powder mixture and heat treatment. Powder XRD patterns, TEM and HRTEM images and XPS spectra revealed the crystalline transformations from raw materials to Fe3Si–Al2O...