Cross‐Linked Surface Engineering to Improve Iron Porphyrin Catalytic Activity

Abstract

Figure 3. a) Plausible mechanism. b) Scheme of the TCPP-Fe/Fe ultra-thin metallized film catalyzed oxidative dehydrogenation of aromatic hydrazides reactions. c) Catalytic efficiency in the reaction over the five cycles. 7 of 7) www.advancedsciencenews.com (

Superoxide Ion and Singlet Oxygen Photogenerated by Metalloporphyrin-Based Metal–Organic Frameworks for Highly Efficient and Selective Photooxidation of a Sulfur Mustard Simulant

“…X-ray photoelectron spectroscopy (XPS) and the Mössbauer spectroscopy were employed to study the valence state of Fe centers in Fe-TCPP-La. As shown in Figure S10a, the Fe 2p peaks of Fe-TCPP-La at 710.7 and 724.3 eV were assigned to Fe 2p 3/2 and Fe 2p 1/2 for ferrous ion, respectively . Moreover, 57 Fe Mössbauer spectroscopy was also measured to investigate the oxidation state of the iron ions in Fe-TCPP-La and the spectra are depicted in Figure S10b.…”

“…As shown in Figure S10a, the Fe 2p peaks of Fe-TCPP-La at 710.7 and 724.3 eV were assigned to Fe 2p 3/2 and Fe 2p 1/2 for ferrous ion, respectively. 39 Moreover, 57 Fe Mossbauer spectroscopy was also measured to investigate the oxidation state of the iron ions in Fe-TCPP-La and the spectra are depicted in Figure S10b. A two-site model was applied to analyze the spectrum, yielding the isomer shift (IS) and quadrupole splitting (QS) values of 0.11 and 0.53 mm s −1 for site A (blue) and 0.40 and 2.08 mm s −1 for site B (red), respectively.…”

Visible-light-driven SAQS-catalyzed aerobic oxidative dehydrogenation of alkyl 2-phenylhydrazinecarboxylates

“…They were produced from hydrazine derivatives via reactions utilizing various metal oxidants such as MnO 2 , 10 Pb(OAc) 4 , 11 Pd/C, 12 and iron phthalocyanine 13 or using an HZIF@TCPP-Fe/Fe system. 14 Several reaction systems using copper have been developed to prepare alkyl 2-phenylazocarboxylate compounds: CuCl and DMAP, 15 Cu(OAc) 2 $H 2 O and 1,10-Phen, 16 and PdCl 2 /CuI. 17 Besides, several non-metal catalytic systems using n-Bu 4 NIO 4 , 18 NBS and pyridine, 19 trichloroisocyanuric acid, 20 and NOx 21 to afford alkyl 2-phenylazocarboxylates have been reported.…”

Encapsulation of Porphyrin‐Fe/Cu Complexes into Coordination Space for Enhanced Selective Oxidative Dehydrogenation of Aromatic Hydrazides

“…[1][2][3] Distinctively, compared with other solid types of nanomaterials, thin permeable shells and limited internal voids endow the hollow nanomaterials with abundant accessible catalytic active sites and approachable contact space between specific reactants and catalysts, thus achieving efficient mass diffusion and reaction. [4][5][6][7][8] To tackle the problems of catalyst efficiency and selectivity, it is necessary to precisely control the positions of the different functions and spatial structures of the catalysts, but this is still a huge challenge.…”