Chenxu Zhi

TL;DR: In this article, the authors demonstrate that the insertion of heteroatoms, B-C, N-C as well as CoSe, into BCN tubes enables the observed excellent adsorption energy of Na ions in high energy storage devices.

TL;DR: In this article, the authors developed a novel and scalable strategy to synthesize hierarchically porous nitrogen-doped carbon nanofibers embedded with abundant Fe3C nanoparticles from continuous electrospun of iron-based metal organic frameworks (MOFs) and polyacrylonitrile (PCI) precursors.

TL;DR: In the catalytic conversion of CO2 with propylene oxide to form propylene carbonate, the as-synthesized MOF-74-III(Co) with desired properties of highly exposed and accessible open CoII center, large mesopore apertures and multi-interactive sites, demonstrated higher catalytic activity compared with other two MOFs, with benzene rings fused to ligands hampering the functionality of CoII centers as Lewis acid sites.

Abstract: Recent research on the amine-grafted metal–organic frameworks has obviously spurred intriguing application prospects in the field of CO2 capture; however, few of them focused on the synthetic approach, which directly determines their structural stabilities for the application. This work explores a double-solvent incorporation strategy to rapidly squeeze the molecule-level amines into the cavites of MIL-101(Cr) without any framework destruction of MOFs. Tris(2-aminoethyl) amine (TAEA), ethylenediamine (ED) and triethylene diamine (TEDA) were employed to obtain TAEA@MIL-101(Cr), ED@MIL-101(Cr) and TEDA@MIL-101(Cr), respectively. Notedly, the CO2 uptake of TAEA@MIL-101(Cr) could be 1.5 times as high as that of pure MIL-101(Cr) at 273 K with a superhigh adsorption heat. Most importantly, the CO2/CO selectivity of TAEA@MIL-101(Cr) was drastically increased, which was 103 times higher than that of MIL-101(Cr). The experimental and theoretical simulation results indicated the different adsorption mechanism of CO...

TL;DR: In this paper, a hierarchical porous nitrogen-doped carbon nanofibers with atomically dispersed Fe-N4 sites was fabricated by carbonization of electrospinning iron-based metal-organic frameworks (MOFs)/polyacrylonitrile nanofiber for ORR electrocatalysis.