ZIF-67-templated synthesis of core-shell-structured POP@MOF composite derived porous carbon with embedding FeCo alloy nanoparticles as high-performance bifunctional oxygen electrocatalysts

Zhang, Meng; Fang, Yan; Bai, Jingkun; Li, Xiaotong; Zheng, Xiao Hu; Dou, Jinli; Wang, Xuedong; Zhang, Weifen; Zhou, Baolong

doi:10.1016/j.micromeso.2020.110627

Cited by 15 publications

(9 citation statements)

References 40 publications

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“…Moreover, the DFT results showed that the superior OER performance of Co 3 O 4 /NPC was thanks to the unique geometrical and electronic effects on activation and adsorption/desorption of reaction species. Similarly, Zhou et al 128 reported another OER catalyst (P 2 Z 3 -900) derived from a MOF/COF composite named Fe-Phth-CMP@ZIF-67. The OER measurement demonstrated that the overpotential of P 2 Z 3 -900 was 1.6 V at 10 mA cm −2 with a small Tafel slope of 57 mV dec −1 .…”

Section: Applications Of Derivatives Based On Mof/cof-based Hybridsmentioning

confidence: 93%

“…Meanwhile, the bimetallic alloys are beneficial to enhancing the electrocatalytic activity and durability compared to their sole-element counterparts. Zhou et al 128 constructed a novel POP@MOF composite with tunable morphology and elemental compositions by utilizing a solid-phase method with the assistance of a MOF template. Specifically, core–shelled Fe-Phth-CMP@ZIF-67 composites with different mass ratios of POP and ZIF were prepared by coating a ZIF-67 surface with a phthalocyanine-based conjugated microporous polymer (Fe-Phth-CMP) through a solid-phase strategy, and P 2 Z 3 -900 was obtained after a further calcination process.…”

Section: Applications Of Derivatives Based On Mof/cof-based Hybridsmentioning

confidence: 99%

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Process of metal–organic framework (MOF)/covalent–organic framework (COF) hybrids-based derivatives and their applications on energy transfer and storage

Cui

2022

Nanoscale

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Section: Applications Of Derivatives Based On Mof/cof-based Hybridsmentioning

confidence: 93%

Section: Applications Of Derivatives Based On Mof/cof-based Hybridsmentioning

confidence: 99%

Process of metal–organic framework (MOF)/covalent–organic framework (COF) hybrids-based derivatives and their applications on energy transfer and storage

Cui

2022

Nanoscale

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“…MOF material is an ORR catalyst, since its abundant pores can promote the transportation of O 2 , and rich active metal sites can participate in redox reactions [ 50 ]. It can also be used as a precursor for the preparation of oxygen electrocatalysts, using transition metal ions as catalyst active centers to prepare NPMC [ 51 , 52 ], or using the volatility of low-boiling metals to prepare metal-free oxygen electrocatalysts [ 53 , 54 ]. MOF-derived NPMC for Zn–air batteries are introduced in this section, in which the structural characteristics of catalyst materials are mainly described, as well as the ORR and OER catalytic performance of the catalysts.…”

Section: Mof-derived Non-precious Metal Catalystsmentioning

confidence: 99%

“…Fe-doped ZIF-67 is a feasible strategy for MOF-derived FeCo bimetallic catalysts. Zhang et al [ 52 ] prepared Fe-Phth-CMP@ZIF-67 composites with Fe-phthalocyanine based conjugated microporous polymer (Fe-Phth-CMP)-coated metal–organic framework ZIF-67 by MOF template-assisted method ( Figure 11 a). The composite has controllable morphology and an adjustable Fe/Co molar ratio.…”

Section: Mof-derived Non-precious Metal Catalystsmentioning

confidence: 99%

“… ( a ) Schematic of the process route for preparing P m Z n -X by solid phase synthesis method (m:n = 1:1, 3:2, and 2:3); TEM and HR-TEM of P 2 Z 3 -900: ( b ) TEM of P 2 Z 3 -900 at a scale bar of 100 nm; ( c ) TEM of P 2 Z 3 -900 at a scale bar of 20 nm; ( d ) HR-TEM of P 2 Z 3 -900 at a scale bar of 5 nm. Copyright 2020 Published by Elsevier Inc. [ 52 ]. …”

Section: Figurementioning

confidence: 99%

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Metal–Organic Frameworks (MOFs) Derived Materials Used in Zn–Air Battery

et al. 2022

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It is necessary to develop new energy technologies because of serious environmental problems. As one of the most promising electrochemical energy conversion and storage devices, the Zn–air battery has attracted extensive research in recent years due to the advantages of abundant resources, low price, high energy density, and high reduction potential. However, the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) of Zn–air battery during discharge and charge have complicated multi-electron transfer processes with slow reaction kinetics. It is important to develop efficient and stable oxygen electrocatalysts. At present, single-function catalysts such as Pt/C, RuO2, and IrO2 are regarded as the benchmark catalysts for ORR and OER, respectively. However, the large-scale application of Zn–air battery is limited by the few sources of the precious metal catalysts, as well as their high costs, and poor long-term stability. Therefore, designing bifunctional electrocatalysts with excellent activity and stability using resource-rich non-noble metals is the key to improving ORR/OER reaction kinetics and promoting the commercial application of the Zn–air battery. Metal–organic framework (MOF) is a kind of porous crystal material composed of metal ions/clusters connected by organic ligands, which has the characteristics of adjustable porosity, highly ordered pore structure, low crystal density, and large specific surface area. MOFs and their derivatives show remarkable performance in promoting oxygen reaction, and are a promising candidate material for oxygen electrocatalysts. Herein, this review summarizes the latest progress in advanced MOF-derived materials such as oxygen electrocatalysts in a Zn–air battery. Firstly, the composition and working principle of the Zn–air battery are introduced. Then, the related reaction mechanism of ORR/OER is briefly described. After that, the latest developments in ORR/OER electrocatalysts for Zn–air batteries are introduced in detail from two aspects: (i) non-precious metal catalysts (NPMC) derived from MOF materials, including single transition metals and bimetallic catalysts with Co, Fe, Mn, Cu, etc.; (ii) metal-free catalysts derived from MOF materials, including heteroatom-doped MOF materials and MOF/graphene oxide (GO) composite materials. At the end of the paper, we also put forward the challenges and prospects of designing bifunctional oxygen electrocatalysts with high activity and stability derived from MOF materials for Zn–air battery.

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Bacterial Structure‐Inspired Synthesis of Tumor‐Microenvironment‐Activated Artificial Enzyme toward Photothermal Enhanced Chemodynamic Cancer Therapy

Wang,

Tang,

Zhao

et al. 2023

ChemistrySelect

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Bacteria therapy, using large sizes bacteria equipped with flagella, could easily penetrate the tumor tissue, exerting amazing effects. Inspired by this, carbon nanotubes‐assisted strategy, using CNTs to simulate the flagella of bacteria, is developed to improve the ability of vector to enter the cell. Via bionics, tumor microenvironment (TME) specific‐activated composite photothermal/Fenton enzyme (PZCo‐800) reacted selectively on the tumor sites was developed via direct pyrolysis of a Co‐Porphyrin‐based conjugated porous polymer (CMP) coated zeolitic‐imidazolate‐framework (ZIF‐8) hybrid. Carbonization caused the formation of flagella‐like CNTs, improving the ability of particles entering the cancer cells. PZCo‐800 utilized the acidic and hydrogen peroxide (H2O2) to initiate the Fenton‐like reaction (CDT), producing reactive oxygen species (ROS) to kill tumor cells. Additionally, under laser irradiation (638 nm), the heat generated by PZCo‐800 offered a prominent photothermal therapy (PTT) boosting the Fenton‐like therapeutic effect. Both in vitro and in vivo assays verified the PTT and CDT worked collaboratively with a remarkable inhabitation of 81.17 % on tumor growth, far outperforming the monomodal CDT and PTT. This microenvironment activated artificial enzyme enabled safe and reliable cancer combination therapy.

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ZIF-67-templated synthesis of core-shell-structured POP@MOF composite derived porous carbon with embedding FeCo alloy nanoparticles as high-performance bifunctional oxygen electrocatalysts

Cited by 15 publications

References 40 publications

Process of metal–organic framework (MOF)/covalent–organic framework (COF) hybrids-based derivatives and their applications on energy transfer and storage

Process of metal–organic framework (MOF)/covalent–organic framework (COF) hybrids-based derivatives and their applications on energy transfer and storage

Metal–Organic Frameworks (MOFs) Derived Materials Used in Zn–Air Battery

Bacterial Structure‐Inspired Synthesis of Tumor‐Microenvironment‐Activated Artificial Enzyme toward Photothermal Enhanced Chemodynamic Cancer Therapy

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