Systematic Selection of Metalloporphyrin-Based Catalysts for Oxygen Reduction by Modulation of the Donor-Acceptor Intermolecular Hardness
作者:Justus Masa、Wolfgang Schuhmann
DOI:10.1002/chem.201203846
日期:2013.7.15
Incisive modulation of the intermolecularhardness between metalloporphyrins and O2 can lead to the identification of promising catalysts for oxygenreduction. The dependency of the electrocatalytic reduction of O2 by metalloporphyrins on the nature of the central metal yields a volcano‐type curve, which is rationalized to be in accordance with the Sabatier principle by using an approximation of the
material in which tetrakis(p-aminophenylporphyrin) is covalentlylinked to a Lindqvist structure of polyoxometalate, is reported. This new porphyrin–polyoxometalate hybrid material was characterized by 1H NMR, FT-IR and UV-Vis spectroscopic methods and cyclic voltammetry. These spectro- and electrochemical studies provided spectral data of the synthesis of this compound. Cyclic voltammetry showed the influence
在目前的工作中,报道了一种新的有机-无机杂化材料的制备,其中四(对氨基苯基卟啉)与多金属氧酸盐的Lindqvist结构共价连接。这种新型的卟啉-多金属氧酸盐杂化材料通过1 H NMR,FT-IR和UV-Vis光谱法以及循环伏安法进行了表征。这些光谱和电化学研究提供了该化合物合成的光谱数据。循环伏安法显示了卟啉对多金属氧酸盐的氧化还原过程的影响。在NaIO 4的烯烃环氧化中研究了这种杂化材料的催化活性。
Four novel two-dimensional porphyrin COFs (M-TP-COF, M = H2, Co, Ni and Mn) with donor–acceptordyads were fabricated and served as electrocatalysts for the oxygen reduction reaction (ORR). The ORR catalytic activity of M-TP-COF was tuned by changing the M atom in the center of the porphyrin backbone. The experimental structure–function relationship was in accordance with the results of density functional
制备了四种具有供体-受体二元组的新型二维卟啉 COF(M-TP-COF,M = H 2、Co、Ni 和 Mn),并将其用作氧还原反应 (ORR) 的电催化剂。M-TP-COF 的 ORR 催化活性是通过改变卟啉骨架中心的 M 原子来调节的。实验结构-函数关系与基于O 2 –O 2 *–OOH*–O*–OH*–OH -路线的密度泛函理论计算结果一致。
Coupling Electron Transfer and Redox Site in Boranil Covalent Organic Framework Toward Boosting Photocatalytic Water Oxidation
作者:Rahul Anil Borse、Yan‐Xi Tan、Jing Lin、Enbo Zhou、Yangdan Hui、Daqiang Yuan、Yaobing Wang
DOI:10.1002/anie.202318136
日期:2024.3.22
theory and experimental studies unveiled the synergistic effect of metal (Ni) and BF2 moiety that alter the electronic band structures and charge carrier mobility, leading to a lower energy barrier for boosting oxygen evolution reaction.