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Unlike graphene and similar structures, 2D covalent organic frameworks (2D COFs) exhibit intrinsic porosity with a high areal density of well‐defined and uniform openings. Given the pore size adjustability, 2D COFs are likely to outperform artificially perforated inorganic layers with respect to their prospects in membrane separation. Yet, exploring the mass transport in 2D COFs is hidden by the lack...
Direct covalent functionalization of large‐area single‐layer hexagonal boron nitride (hBN) with various polymer brushes under mild conditions is presented. The photopolymerization of vinyl monomers results in the formation of thick and homogeneous (micropatterned, gradient) polymer brushes covalently bound to hBN. The brush layer mechanically and chemically stabilizes the material and allows facile...
In article number 1805228, Ihsan Amin, Tao Zhang, Rainer Jordan, and co‐workers present the direct covalent functionalization of hexagonal boron nitride (hBN) with polymer brushes under mild conditions. Photopolymerization results demonstrate the formation of thick and homogeneous (micropatterned, graded) polymer brushes covalently bound to hBN. The brush layer mechanically and chemically stabilizes...
The fundamental understanding of electrocatalytic active sites for hydrogen evolution reaction (HER) is significantly important for the development of metal complex involved carbon electrocatalysts with low kinetic barrier. Here, the MSxNy (M = Fe, Co, and Ni, x/y are 2/2, 0/4, and 4/0, respectively) active centers are immobilized into ladder‐type, highly crystalline coordination polymers as model...
A bottom‐up approach toward 3D hierarchical macroporous polypyrrole aerogels is demonstrated via soft template‐directed synthesis and self‐assembly of ultrathin polypyrrole nanosheets in solution, which present interconnected macropores, ultrathin walls, and large specific surface areas, thereby exhibiting a high capacity, satisfactory rate capability, and excellent cycling stability for Na‐ion storage...
Micro‐supercapacitors (MSCs) based on mesoporous polyaniline patterned graphene are demonstrated. The synergic effect from both electron‐double‐layer‐capacitive graphene and pseudocapacitive mesoporous‐polyaniline leads to outstanding MSC device performances, in regard to excellent volumetric capacitance and rate capabilities, which further result in a high power density of 600 W cm−3, suggesting...
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