Fe-CoP/C composite nanoplate derived from 2D porphyrin MOF as an efficient catalyst for oxygen evolution reaction

Abstract

The preparation of two-dimentional (2D) composite material consisting of active metal-based phase and carbon matrix is still a challenge. Herein, 2D bimetal Co-TCPP(Fe) metal-organic framework (MOF) is synthesized and then...

Sheet-on-sheet architectural assembly of MOF/graphene for high-stability NO sensing at room temperature

“…Besides, 797.3 eV (2p 1/2 ) and 802.7 eV (satellite splitting) described the binding energy of Co 2p. 75 Compared with DLS-2D-Co-TCPP(Fe), the Co 2p XPS characteristic spectra of DLS-2D-Co-TCPP(Fe)/ANS–rGO-0.5 showed similar peaks at 781.8 eV (2p 3/2 ), 786.9 eV (satellite splitting), 797.7 (2p 1/2 ), and 803.3 eV (satellite splitting). The binding energy of DLS-2D-Co-TCPP(Fe)/ANS–rGO-0.5 increased by ∼0.3 eV compared with that of DLS-2D-Co-TCPP(Fe) indicating that electrons were transferred from DLS-2D-Co-TCPP(Fe) to ANS–rGO.…”

Building porphyrin-based MOFs on MXenes for ppb-level NO sensing

“…For Co-TCPP(Fe), a 2p 3/2 peak at 781.5 eV and a satellite peak at 786.2 eV with their corresponding splitting peaks at 797.2 eV (2p 1/2 ) and 802.6 eV (satellite splitting) were resolved. 72 Compared with Co-TCPP(Fe), the Co 2p XPS survey spectra of Co-TCPP(Fe)/Ti 3 C 2 T x -20 showed three similar peaks at 786.2 (satellite), 797.2 (2p 1/2 ) and 802.6 eV (satellite splitting), but the Co 2p 3/2 of Co-TCPP(Fe)/Ti 3 C 2 T x -20 shifted up about 0.1 eV, which indicated that the electrons were transferred from Co-TCPP(Fe) to Ti 3 C 2 T x . Fig.…”

2D Metal Porphyrin-Based MOFs and ZIF-8 Composite-Derived Carbon Materials Containing M–Nx Active Sites as Bifunctional Electrocatalysts for Zinc–Air Batteries

“…23 While the incorporation of 2D metal porphyrinbased MOFs with carbon-based materials holds potential for enhancing electrical conductivity, the observed impact remains less than optimal and its application in electrocatalysts is still limited. 24,25 Zeolitic imidazolate framework-8 (ZIF-8) assembled from coordination of zinc and 2-methylimidazole has the advantages of facile synthesis, high porosity, easy control of morphology, and large specific surface area. In recent years, ZIF-8 has found wide applications in zinc−air batteries, supercapacitors, and biopharmaceuticals.…”

“…However, two major shortcomings hinder its development: (1) soft and easily aggregate 2D structure led to the coverage of previously exposed active sites; (2) poor conductivity lowered the electron transport efficiency in the electrocatalytic reaction . While the incorporation of 2D metal porphyrin-based MOFs with carbon-based materials holds potential for enhancing electrical conductivity, the observed impact remains less than optimal and its application in electrocatalysts is still limited. , …”