
Electrochemical and XAFS investigation of nitrite reduction by …
2001年7月27日 · The electrochemical nitrite reduction by heat-treated (FePc) 2 O/KB (KB=Ketjen Black) in the range of 500–1000 °C has been done in 0.5 M sulfuric acid and the effect of heat-treatment on the
Identifying the impact of the covalent-bonded carbon matrix to …
2022年1月10日 · Extended XAFS (EXAFS) fitting of four samples in k-space was also consistent with that of FePc benchmark and completely deviated from Fe foil, manifesting iron atom in synthetic...
Supramolecular tuning of supported metal phthalocyanine …
2023年3月13日 · X-ray absorption fine structure (XAFS) measurements were made at the 8C nano-probe XAFS beamline (BL8C) of Pohang Light Source (PLS-II) in the 3.0 GeV storage ring, with a ring current of 300...
Probing the Influence of the Conjugated Structure and Halogen …
2015年2月1日 · XAFS analysis indicated that the poly-FePc/MWCNTs composites had a square planar structure and a smaller of phthalocyanine ring (Fe-N 4 structure) skeleton structure radius when a larger conjugated structure or introduced halogen atoms was present. The experimental results suggest that the these changes in properties arising from the different ...
Probing the influence of the center atom coordination structure in …
2015年9月30日 · XAFS spectroscopy reveals that the FePc–Py/MWCNTs electrocatalysts have a coordination geometry around Fe that is closer to the square pyramidal structure, a higher concentration of Fe 3+, and a smaller phthalocyanine ring radius compared with those of FePc/MWCNTs.
Rational design of heterogenized molecular phthalocyanine
2023年3月14日 · The X-ray absorption fine structure (XAFS) spectra at Co K-edge were collected at 1W1B beamline of Beijing Synchrotron Radiation Facility (BSRF) and BL14W1 beamline of Shanghai Synchrotron ...
用X射线吸收精细结构光谱法研究中心原子配位结构对酞菁铁多壁 …
样品的电催化活性通过线性扫描伏安法(lsv)测定,并且发现所有fepc-py / mwcnts电催化剂的起始电势均比其对应的fepc / mwcnts电催化剂的正电势高。x射线光电子能谱(xps)和x射线吸收精细结构(xafs)光谱用于阐明分子结构与电催化活性之间的关系。
Electrochemical and XAFS investigation of nitrite reduction by …
2001年7月1日 · XAFS spectroscopy reveals that the FePc–Py/MWCNTs electrocatalysts have a coordination geometry around Fe that is closer to the square pyramidal structure, a higher concentration of Fe3+, and a...
基于MOF构筑非键合的近邻Fe-Ni单原子对用于高效电催化CO2还原 …
2021年11月25日 · 近日,中国科学技术大学江海龙教授(点击查看介绍)课题组提出了一种Zn辅助原子化策略 (ZAAS),成功将Fe和Ni单原子引入到MOF衍生的氮掺杂碳,构筑了具有近邻非成键Fe-Ni原子对 (single-atom pairs) 的 Fe1-Ni1-N-C中。 首先通过静电相互作用将Fe掺杂ZnO (Fe-ZnO) 和Ni掺杂ZnO (Ni-ZnO) 纳米粒子静电组装到ZIF-8上,获得Fe&Ni-ZnO/ZIF-8复合材料。 热解过程中,氧化锌被还原为低沸点单质Zn并挥发掉,掺杂的Fe和Ni被ZIF-8转化为氮掺杂碳捕获 …
The synthesis and synergistic catalysis of iron phthalocyanine …
2018年4月1日 · The FePc-R25 nanocomposite was confirmed to be the optimal catalyst for high-performance ORR catalysis, and then was systematically characterized via MALDI-TOF MS, SEM, TEM, FT-IR, Raman, XPS, XANES and EXAFS.