High-throughput synthesis of zeolitic imidazolate frameworks and application to CO2 capture.

TL;DR: A composite material based on CoSe2 nanoparticles encapsulated in N-doped carbon framework intertwined with carbon nanotubes (CoSe2@N-CF/CNTs) is prepared successfully from cobalt-based zeolitic imidazolate framework and demonstrates excellent electrochemical performance as anode materials for SIBs with a carbonate-based electrolyte.

TL;DR: In this article, the authors gratefully acknowledge financial support from the King Abdullah University of Science and Technology (KAUST) and thank V. Guillerm for helpful comments and suggestions.

Abstract: Bifunctional oxygen catalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) with high activities and low‐cost are of prime importance and challenging in the development of fuel cells and rechargeable metal–air batteries. This study reports a porous carbon nanomaterial loaded with cobalt nanoparticles (Co@NC‐x/y) derived from pyrolysis of a Co/Zn bimetallic zeolitic imidazolite framework, which exhibits incredibly high activity as bifunctional oxygen catalysts. For instance, the optimal catalyst of Co@NC‐3/1 has the interconnected framework structure between porous carbon and embedded carbon nanotubes, which shows the superb ORR activity with onset potential of ≈1.15 V and half‐wave potential of ≈0.93 V. Moreover, it presents high OER activity that can be further enhanced to over commercial RuO2 by P‐doped with overpotentials of 1.57 V versus reversible hydrogen electrode at 10 mA cm−2 and long‐term stability for 2000 circles and a Tafel slope of 85 mV dec−1. Significantly, the nanomaterial demonstrates better catalytic performance and durability than Pt/C for ORR and commercial RuO2 and IrO2 for OER. These findings suggest the importance of a synergistic effect of graphitic carbon, nanotubes, exposed Co–Nx active sites, and interconnected framework structure of various carbons for bifunctional oxygen electrocatalysts.

TL;DR: In this article, a survey on transition metal containing coordination polymers and metal-organic frameworks (MOFs) with poly(pyrazole)-and poly (pyrazolate)-based ligands is presented, where up to three N-donor heterocyclic rings are organized on rigid or flexible cores.

TL;DR: The past decade has seen significant advances in the ability to fabricate new porous solids with ordered structures from a wide range of different materials, which has resulted in materials with unusual properties and broadened their application range beyond the traditional use as catalysts and adsorbents.

TL;DR: The inclusion properties of the most open members are presented as evidence that MOF structures with rod building blocks can indeed be designed to have permanent porosity and rigid architectures.

TL;DR: In this paper, three commercial applications of activated carbons, including trace impurity removal from a contaminated gas, production of hydrogen from a steam-methane reformer off gas, and production of nitrogen from air, are reviewed.

TL;DR: The structure and catalytic activity of the silicogermanate zeolite ITQ-33 is reported, which exhibits straight large pore channels with circular openings of 18-rings along the c axis interconnected by a bidirectional system of 10-ring channels, yielding a structure with very large micropore volume.