Abstract As one of the most attractive methods for the synthesis of ordered hierarchically porous crystalline materials, the soft-template method has not appeared in covalent organic frameworks (COFs) due to the incompatibility of surfactant self-assembly and guided crystallization process of COF precursors in the organic phase. Herein, we connect the soft templates to the COF backbone through ionic bonds, avoiding their crystallization incompatibilities, thus introducing an additional ordered arrangement of soft …

The extensive use of nuclear energy has led to an urgent need for effective management of radioactive waste. Membrane separation of radionuclides is considered to be a promising method for nuclear waste treatment and resource recovery. However, most reported membranes have difficulties achieving a balance between permeability and selectivity. In this work, we propose a dual strategy to produce sub-nanometer COF-based membranes, which includes constructing covalent organic frameworks (COFs) from smaller building bl…

Abstract Hydrogen is increasingly being discussed as clean energy for the goal of net-zero carbon emissions, applied in the proton-exchange-membrane fuel cells (PEMFC). The preferential oxidation of CO (PROX) in hydrogen is a promising solution for hydrogen purification to avoid catalysts from being poisoned by the trace amount of CO in hydrogen-rich fuel gas. Here, we report the fabrication of a novel bimetallic Pt-Fe catalyst with ultralow metal loading, in which fully-exposed Pt clusters bonded with neighbor at…