| 查看: 983 | 回复: 2 | ||
笑着说、再见新虫 (正式写手)
|
[求助]
审稿人关于XPS确定Mn元素不同化学态的问题，求助！ 已有1人参与
|
|
审稿人关于XPS的问题，求助！ Q1: Given the relationship between the relative amounts of Mn3+ to Mn4+ cations on B-site and the electrical conduction, XPS analysis was performed to determine the valence state variation of cations and to quantify the Mn3+/Mn4+ ratio. However, although it is known that the chemical state identification in manganese by XPS is difficult due to the presence of a complex multiplet splitting [A-D], this has not been taken into consideration in the deconvolution of the XPS spectra for Mn 2p3/2. This disregard has affected the evaluation of the Mn3+/Mn4+ ratios for the different samples. Q2: The weak point of the paper is the part concerning the determination of relative abundances of different Mn ions using the Mn2p3/2 peak profile fitting. Surprisingly, the widths of their Mni+2p3/2 decomposition components grow with the oxidation state i, see Fig. 3. In fact, the situation is opposite. The authors mention themselves that the widths of the Mn2p3/2 peaks are in 3.2 eV MnO, 3.0 eV in Mn2O3, and 2.5 eV in MnO2. In this situation the data on relative ratios of different Mn ions concentrations obtained by Mn2p3/2 peak fitting cannot be considered reliable. The right way to perform the decomposition of the Mn2p3/2 peak would be to use the decomposition components Mni+2p3/2with fixed widths equal to the experimental ones (may be broadened taking into account present machine’s resolution). If the authors insist that their fitting is all right in spite of the above mentioned circumstances, they should give solid reasoning for this. |
回复此楼» 猜你喜欢
PLLA 微球的材料特性与制备工艺解析
已经有0人回复
-
医用聚己内酯（PCL）全解析：从两段式降解到组织工程应用
已经有0人回复
-
无机非金属材料论文润色/翻译怎么收费?
已经有94人回复
-
反相硅胶如何再生？
已经有1人回复
-
木质素颗粒SEM制样
已经有0人回复
-
哈尔滨理工大学2026年研究生调剂，材料科学与化学工程学院研究生调剂
已经有3人回复
-
武汉一本高校招收材料、化学、高分子、纺织、生物相关专业硕士生
已经有0人回复
-
材料工程,326分，求调剂
已经有6人回复
-
一志愿南昌大学085601材料专硕，四六级已过
已经有11人回复
2楼2018-12-09 22:47:08
598878157
版主 (文学泰斗)
rky
- 应助: 369 (硕士)
- 贵宾: 3.087
- 金币: 103252
- 散金: 301
- 红花: 155
- 帖子: 58331
- 在线: 1147.3小时
- 虫号: 614840
- 注册: 2008-09-28
- 性别: GG
- 专业: 固体无机化学
- 管辖: 外语学习
3楼2019-01-26 10:47:15
20