关于富锂锰或者层状正极结构中003/104的问题，小白还是想继续讨论，欢迎各位拍砖？富锂锰结构中003/104的问题困扰我很久了，就是为啥可以用这个参数来衡量阳离子混排 对于做三元或富锂层状的同学而言，大家都知道003/104峰强比的重要性，论文中都会指出，这个参数是可以用来评估材料层状结构的特性的，并且该比值越高，材料的阳离子混排度越低（当然，目前似乎很少有论文再着重关注这点了，可能是因为Cedar的disordering unlocking capacity的观点影响吧） 有朋友建议去查询一些LiCoO2的老文献，可能是因为本人能力有限，并未找到类似的文章 不过最近看到一篇AFM在文中提到了 This is the origin of using the intensity ratio of the (003) to (104) peaks to indicate the degree of cation mixing (transition metals in lithium-layer sites). 详见下 但是对文中F的具体表达式，我存在一定的疑惑，主要是如下 （感觉自己是学艺不精，经常会犯迷糊） 文献也附上 也不知道自己考虑得对不对，希望和各位讨论一下，欢迎各位拍砖查看更多4个回答 . 29人已关注
核酸适体大牛谭蔚泓分析化学新作？ 核酸 适体大牛谭蔚泓分析化学新作：Efficient Two-Photon Fluorescent Probe with Red Emission for Imaging of Thiophenols in Living Cells and Tissues双光子荧光探针检测活细胞组织中的 苯硫酚 Thiophenols, a class of highly toxic and pollutant compounds, are widely used in industrial production. Some aliphatic thiols play important roles in living organisms. Therefore, the development of efficient methods to discriminate thiophenols from aliphatic thiols is of great importance. Although several one-photon fluorescent probes have been reported for thiophenols, two-photon fluorescent probes are more favorable for biological imaging due to its low background fluorescence, deep penetration depth, and so on. In this work, a two-photon fluorescent probe for thiophenols, termed NpRb1, has been developed for the first time by employing 2,4-dinitrobenzene-sulfonate (DNBS) as a recognition unit (also a fluorescence quencher) and a naphthalene-BODIPY-based through-bond energy transfer (TBET) cassette as a fluorescent reporter. The TBET system consists of a D-π-A structured two-photon naphthalene fluorophore and a red-emitting BODIPY. It displayed highly energy transfer efficiency (93.5%), large pseudo-Stokes shifts upon one-photon excitation, and red fluorescence emission (λem = 586 nm), which is highly desirable for bioimaging applications. The probe exhibited a 163-fold thiophenol-triggered two-photon excited fluorescence enhancement at 586 nm. It showed a high selectivity and excellent sensitivity to thiophenols, with a detection limit of 4.9 nM. Moreover, it was successfully applied for practical detection of thiophenol in water samples with a good recovery, two-photon imaging of thiophenol in living cells, and tissues with tissue-imaging depths of 90–220 μm, demonstrating its practical application in environmental samples and biological systems.查看更多1个回答 . 26人已关注
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