A sandwich-type catalytic composite reassembled with a birnessite layer and metalloporphyrin as a water oxidation catalyst

Abstract

Sandwich-type MnTAPP@bir was synthesized by re-assembly of exfoliated birnessite and MnTAPP, and exhibited superior OER performance.

Highly Enhanced Electrochemiluminescence Luminophore Generated by Zeolitic Imidazole Framework-8-Linked Porphyrin and Its Application for Thrombin Detection

“…As illustrated in Figure S2A, the NH 2 -ZIF-8 displays a classical N–H stretching peak within a broad wavelength range of 3000∼3400 cm –1 (curve b) as opposed to pure ZIF-8 itself (curve a), illustrating the efficient modification of the amino groups onto the surface of the ZIF-8 via the amination reaction. Simultaneously, the FT-IR spectrum of ZnP shows that the peak at 1700 cm –1 comes from the −C=O groups in carboxylic acids closely connected with the side-chain groups (e.g., carboxyethyl, vinyl, and methyl groups) of the porphyrin ring (curve c) . Most impressively, the characteristic amide vibrations such as amide I (1633 cm –1 ) for C=O stretching and amide II (1532 cm –1 ) for N–H bending/C–N stretching appear in the FT-IR spectrum of ZnP-NH-ZIF-8 (curve d).…”

“…Simultaneously, the FT-IR spectrum of ZnP shows that the peak at 1700 cm −1 comes from the −C=O groups in carboxylic acids closely connected with the side-chain groups (e.g., carboxyethyl, vinyl, and methyl groups) of the porphyrin ring (curve c). 39 Most impressively, the characteristic amide vibrations such as amide I (1633 cm −1 ) for C=O stretching and amide II (1532 cm −1 ) for N−H bending/C−N stretching appear in the FT-IR spectrum of ZnP-NH-ZIF-8 (curve d). Also, the O−H vibration peak shows up at 3309 cm −1 .…”

Porphyrin-Conjugated Microporous Polymer Nanospheres as Electrocatalysts for Nitrobenzene Detection and Oxygen Evolution Reaction

“…Metalloporphyrin-based porous organic conjugated polymers are new covalent polymers with well-developed pores and stable periodic regular structures, which have inherent catalytic properties. − Their catalytic C–H bond oxidation properties are even more superior after pyrolysis . However, the catalytic properties of such polymers or their pyrolysis products are all due to the presence of metal ions. , In other words, all of their structural units are metalloporphyrins.…”