纳米带的XRD图谱,并给出 部分和标准卡片(JCPDS43-1042)相对应的晶面指 数。从图2的低倍SEM照片可以看出,产物的形 貌比较均匀,高倍SEM照片显示纳米带的宽度在 200~500nm,部分纳米带宽度增加,长度可达到几 微米,进一步证明了将H 3 ONb 3 O 8 纳米带在700°C ...
The XRD pattern of the product is depicted in Fig. 1a, and it can be indexed on a layered structure Nb2O5 (JCPDS 30-0873). Fig. 1b shows the SEM image of Nb2O5 nanobelts and a large number of nanobelts were formed. This is also confirmed by the TEM observation, as shown in Fi...
1a, XRD pattern of the as-obtained powders from hydrothermal process can be indexed as an orthorhombic Nb3O7F structure (JCPDS Card No. 74-2363). Fig. 1b shows the morphology of the as-prepared Nb3O7F, displaying two dimensional sheet-like structure. A TEM image of Nb3O7F nanosheets ...
XRD analysis To determine the XRD composition of Nb2O5, the JCPDS #27–1003 was employed [17,18]. Consistently with an orthorhombic geometry of Nb2O5 stated in previous studies, the peak patterns of diffraction identified at 25.2°, 35.3°, 38.5°, 43.1°, 52.9°, 55.2° and 58.4° re...
XRD patterns: (a) anodic alumina generated during the anodizing process, (b) reference TT-Nb2O5(JCPDS 28–0317), (c) Nb2O5/Al2O3/Al monolith The Nb2O5loading of the monolith catalyst was determined by ICP-AES, being of 327\( {\mathrm{mg}}_{{\mathrm{Nb}}_2{\mathrm{O}}_5...
图2为实施例1～6的xrd衍射图样,从图中可以看出,陶瓷的主晶相为zn0.5ti0.5nbo4,与jcpds卡片号48-0323匹配,次晶相为zn0.15nb0.3ti0.55o2(jcpds#79-1186)。在实施例1,2中存在少量znnb2o6相(卡片号jcpds#37-1371),实施例1～3中存在少量znb2o4相(jcpds#39-1126)。在实施例4～6中,随着烧结温度的升高,znnb...
(002) planes of the graphite-like structure of C3N4,respectively50. The XRD pattern revealed that the diffraction peaks of Nb2O5NFs correspond to the orthorhombic phase (standard JCPDS card 30-0873). It is noticeable that the synthesized g-C3N4/Nb2O5heterojunction exhibited similar pattern to ...
XRD patterns of as-obtained materials are presented in Fig. 1b and S1. All the observed diffraction peaks of CTN-0 can be assigned to orthorhombic Nb2O5 (JCPDS#030-0873) with a Pbam space group. With the addition of 0.1 mL TBT (CTN-1), the peaks at the 2θ values of 23.9, 32...
Fig. 1(a) exhibits the XRD patterns of x wt% (x = 0, 0.1, 0.2, 0.3 and 0.5) Nb2O5-doped NiZnCo ferrites, and all the diffractions peaks (220, 311, 222, 440, 422, 511, 440, and 531) match well with the standard PDF card of NiZn ferrites (JCPDS:52-0278). Moreover, all...
Fig. 1(a) shows the XRD patterns of NixNb1−xO mixed oxide precursor after calcination. All the NixNb1−xO oxide samples showed the (1 1 1), (2 0 0), (2 2 0), (3 1 1) and (2 2 2) typical reflections of NiO (JCPDS 89-7130), close to 2θ = 37.2°, 43.2°, 63.0°...