General Construction of 2D Ordered Mesoporous Iron‐Based Metal–Organic Nanomeshes

Abstract

Nanomeshes with highly regular, permeable pores in plane, combining the exceptional porous architectures with intrinsic properties of 2D materials, have attracted increasing attention in recent years. Herein, a series of 2D ultrathin metal–organic nanomeshes with ordered mesopores is obtained by a self‐assembly method, including metal phosphate and metal phosphonate. The resultant mesoporous ferric phytate nanomeshes feature unique 2D ultrathin monolayer morphologies (≈9 nm thickness), hexagonally ordered, permeable mesopores of ≈16 nm, as well as improved surface area and pore volume. Notably, the obtained ferric phytate nanomeshes can directly in situ convert into mesoporous sulfur‐doped metal phosphonate nanomeshes by serving as an unprecedented reactive self‐template. Furthermore, as advanced anode materials for Li‐ion batteries, they deliver excellent capacity, good rate capability, and cycling performance, greatly exceeding the similar metal phosphate‐based materials reported previously, resulting from their unique 2D ultrathin mesoporous structure. Therefore, the work will pave an avenue for constructing the other 2D ordered mesoporous materials, and thus offer new opportunities for them in diverse areas.

Fe-Based metal–organic frameworks as functional materials for battery applications

“…3j. 63 Thanks to the unique two-dimensional ultrathin monolayer nanostructures (∼9 nm thickness), it had preferable charge storage and ion transport properties. Compared with carboxylates, metal phosphonates show higher thermal and chemical stability because the affinity of metal ions is strong.…”

Block Copolymer Self‐Assembly Guided Synthesis of Mesoporous Carbons with In‐Plane Holey Pores for Efficient Oxygen Reduction Reaction

“…[27][28][29][30] Meanwhile, the introduction of 2D structure can increase the exposure of active sites. [28,[31][32][33][34][35][36][37][38] Therefore, 2D Ndoped mesoporous carbon nanosheets have attracted a great deal of interest. To date, 2D mesoporous carbon nanosheets were prepared by template method or physical activation, [39][40][41] but most of them lack of holey pores.…”

Diblock copolymers directing construction of hierarchically porous metal-organic frameworks for enhanced-performance supercapacitors

“…The energy and environmental crisis and ever-increasing energy demand of electric devices compel humans to explore efficient energy storage systems with long cycling life, high energy, and power density [1][2][3][4][5][6][7]. Supercapacitors are of considerable interest as promising candidates to replace or complement batteries for many electronic devices, in virtue of their high capacitances, high charge/discharge rates and safe operation [8][9][10].…”