From Metal–Organic Framework to Porous Carbon Polyhedron: Toward Highly Reversible Lithium Storage

Abstract

By application of a newly designed T-shaped ligand 5-(4-pyridin-4-yl-benzoylamino)isophthalic acid (HPBAI) to assemble with Zn(II) ions under solvothermal conditions, a novel porous polyhedral metal-organic framework (Zn-PBAI) with pcu topology has been obtained. When treated as a precursor by annealing of Zn-PBAI at various temperatures, porous carbon polyhedra (PCP) were prepared and tested as an anode material for lithium-ion batteries. The results show that PCP carbonized at 1000 °C (PCP-1000) manifest the highest reversible specific capacity of about 1125 mAh g at a current of 500 mA g after 200 cycles, which is supposed to benefit from the large accessible specific area and high electric conductivity. Moreover, PCP-1000 electrode materials also exhibit superior cyclic stability and good rate capacity.

Porosity Engineering of MOF‐Based Materials for Electrochemical Energy Storage

“…By use of Zn-PBAI (H 2 PBAI = 5-(4-pyridin-4-yl-benzoylamino)isophthalic acid) as precursors, the resulting porous carbon polyhedron reaches the highest S BET , V tot , and electrical conductivity (1254 m 2 g −1 , 0.52 cm 3 g −1 , and 18.4 S cm −1 ) at pyrolysis temperature of 1000 °C (PCP-1000). [262] Consequently, the highest reversible capacity (1125 mAh g −1 @ 0.44 C) is obtained with it.…”

“…MOF-Derived Carbon: Several studies have shown that BET surface areas and pore sizes of MOF-derived carbons can be feasibly modulated by altering pyrolysis temperatures, thereby controlling their LIB performance. [157,161,262] For example, porous carbon NSs have been prepared by sequential pyrolysis and acid etching of Al-MOFs (denoted as PCNS-n, n represents the pyrolysis temperature). [157] With rising temperature, both the S BET and total volume (V tot ) increase and then decrease (reaching the maximum value for PCNS-700, i.e., 1571.4 m 2 g −1 and 1.78 cm 3 g −1 ).…”

Crystal structure of methyl 10-(pyridin-4-yl)-anthracene-9-carboxylate, C21H15NO2

“…At present, pyridine carboxylic acid (Hpydc) seems to be a potential rigid ligand in some complexes reported. O-and N-donors of Hpydc allow the construction of many different kinds of interesting three-dimensional structures of transition metal and lanthanide complexes [13,14]. Herein, we reported a new compound, namely 10-(pyridin-4-yl)anthracene-9carboxylate, which may be hydrolyzed and deprotonized to produce 10-(pyridin-4-yl)-9-anthroate, which has not been used to construct MOFs so far.…”

Metal–Organic Framework (MOF)‐Derived Nanoporous Carbon Materials

“…Peng andc o-workers synthesized porous carbon polyhedral (PCP) materials derived fromZ n-PBAI MOF (Figure 1a). [41] The Zn-PBAI was synthesized by combining aT -shaped ligand, 5-(4pyridin-4-yl-benzoylamino)isophthalic acid (H 2 PBAI), with pyridine and isophthalate. The formation of ap olyhedron shape was initiated by the interaction between six Zn-paddlewheel motifs, each involving two Zn atoms, and six PBAI ligands to generate an octahedral supramolecular building block.…”

“…Peng and co‐workers synthesized porous carbon polyhedral (PCP) materials derived from Zn‐PBAI MOF (Figure a) . The Zn‐PBAI was synthesized by combining a T‐shaped ligand, 5‐(4‐pyridin‐4‐yl‐benzoylamino)isophthalic acid (H 2 PBAI), with pyridine and isophthalate.…”