Zeolitic Imidazolate Framework Research Articles

Zinc Coordination‐Polymer‐Mediated Self‐Assembly of Nanoparticles into “Brick‐and‐Mortar” Membranes for Hydrogen Separation

Zeolitic imidazolate framework‐8 (ZIF‐8) with high stability and porosity is a promising candidate for hydrogen separation membranes. However, most ZIF‐8 polycrystalline membranes exhibit low H2/CO2 (kinetic diameters of 2.9/3.3 Å) mixed gas selectivity, due to the intercrystalline defects and the unprecise molecular sieving originated from framework flexibility of ZIF‐8 structure with a theoretical aperture size of 3.4 Å. Here, inspired by nacre’s “brick‐and‐mortar” structure, we develop mixed matrix type composite membranes in which dominant crystalline ZIF‐8 nanoparticles (bricks) are interconnected by ultrathin zinc coordination polymer interlayers (mortar) via self‐assembling. Driven by coordination bonds between Zn2+ from precursor colloid and branched polyethyleneimine (PEI), a zinc coordination polymer network is formed to connect ZIF‐8 nanoparticles through interactions between Zn2+ of coordination polymer and surface terminal groups on ZIF‐8 nanoparticles, thus eliminating intercrystalline void defects and providing a highly selective H2 transport pathway. Meanwhile, the micropores and large cavities in ZIF‐8 allow fast H2 transport. Benefitting from both highly selective pathway and fast H2 transport through porous ZIF‐8, the optimized ZIF‐8‐PEI membrane exhibits a record‐high H2 permeability of ~1.78×105 Barrer with a high mixed gas H2/CO2 selectivity of 176, surpassing state‐of‐the‐art performance. This bioinspired multifunctional membrane expands the scope of molecular sieving membrane.

Zinc Coordination-Polymer-Mediated Self-Assembly of Nanoparticles into "Brick-and-Mortar" Membranes for Hydrogen Separation.

Zeolitic imidazolate framework-8 (ZIF-8) with high stability and porosity is a promising candidate for hydrogen separation membranes. However, most ZIF-8 polycrystalline membranes exhibit low H2/CO2 (kinetic diameters of 2.9/3.3 Å) mixed gas selectivity, due to the intercrystalline defects and the unprecise molecular sieving originated from framework flexibility of ZIF-8 structure with a theoretical aperture size of 3.4 Å. Here, inspired by nacre's "brick-and-mortar" structure, we develop mixed matrix type composite membranes in which dominant crystalline ZIF-8 nanoparticles (bricks) are interconnected by ultrathin zinc coordination polymer interlayers (mortar) via self-assembling. Driven by coordination bonds between Zn2+ from precursor colloid and branched polyethyleneimine (PEI), a zinc coordination polymer network is formed to connect ZIF-8 nanoparticles through interactions between Zn2+ of coordination polymer and surface terminal groups on ZIF-8 nanoparticles, thus eliminating intercrystalline void defects and providing a highly selective H2 transport pathway. Meanwhile, the micropores and large cavities in ZIF-8 allow fast H2 transport. Benefitting from both highly selective pathway and fast H2 transport through porous ZIF-8, the optimized ZIF-8-PEI membrane exhibits a record-high H2 permeability of ~1.78×105 Barrer with a high mixed gas H2/CO2 selectivity of 176, surpassing state-of-the-art performance. This bioinspired multifunctional membrane expands the scope of molecular sieving membrane.

Microenvironment-Responsive Hydrogels Comprising Engineering Zeolitic Imidazolate Framework-8-Anchored Parathyroid Hormone-Related Peptide-1 for Osteoarthritis Therapy.

Intra-articular drug injections are effective for osteoarthritis (OA), but challenges such as the complex microenvironment and rapid drug diffusion require frequent injections. Herein, we propose a biofunctional hydrogel-based strategy for prolonged drug delivery and microenvironment remodeling. We propose a strategy to functionalize zeolitic imidazolate framework-8 with tannic acid (TA-ZIF), anchor PTH-related peptide-1 (PTHrP-1) within this framework (TA-ZIF@P1) and incorporate a phenylboronic acid-modified gelatin-based hydrogel (GP hydrogel) drug delivery system (GP@TA-ZIF@P1, GPTP hydrogel) with responsive release properties that respond to the pathological microenvironments of OA. The GPTP hydrogel facilitated controlled, sustained release of PTHrP-1 via dynamic boronic esters, with in vitro and in vivo studies showing continuous release for over 28 days. It not only promotes chondrocyte proliferation but also exhibits significant cytoprotective effects under hyperactive ROS and IL-1β-induced conditions. Notably, transcriptome sequencing confirms that the GPTP hydrogel facilitates both chondrocyte proliferation and chondrogenesis under inflammatory conditions by deactivating Wnt/β-Catenin signaling pathways and enhancing the PI3K/AKT signaling pathway. Additionally, the GPTP hydrogel delays the catabolic metabolism of cartilage explants from mice in inflammatory environments. In a surgical model of mouse OA, we show that the intra-articular injection of GPTP hydrogels reduced periarticular bone remodeling and promoted the production of glycosaminoglycans while offering chondroprotection against cartilage degeneration. To sum up, this pioneering research on PTHrP-1 as a treatment for OA, combined with the GPTP hydrogel system, offers valuable insights and a paradigm for the controlled and sustained release of PTHrP-1, representing a significant advancement in OA treatment strategies.

Recent advances in zeolitic imidazolate frameworks as drug delivery systems for cancer therapy

Recent advances in zeolitic imidazolate frameworks as drug delivery systems for cancer therapy

Compartmentalized co-immobilization of cellulase and cellobiose phosphorylase within zeolitic imidazolate framework efficiently synthesizes 1-p-Glc: Glycosylation of 18FDG.

Enzymatic glycosylation is an efficient and biocompatible approach to enhance natural product bioavailability. Cellobiose phosphorylase, a novel glycosyltransferase, utilizes 1-phospho-glucose (1-p-Glc) as a glycosyl donor for regioselective glycosylation of various natural substrates. However, the high cost of 1-p-Glc limits the economic feasibility of the process. Thus, a dual-enzyme cascade system involving cellulase AcCel9A and cellobiose phosphorylase CbCBP using a co-immobilization strategy was developed to overcome this challenge. The system utilizes low-cost carboxymethyl cellulose (CMC) for continuous 1-p-Glc production, which was then used in the fluorodeoxy glucose (FDG) glycosylation to generate fluorodeoxy cellobiose (FDC), which potentially traces fungal infections. The compartmentalized co-immobilization of the two enzymes within the internal and external regions of a porous zeolitic imidazolate framework-8 (ZIF-8) carrier enhanced the overall stability of the dual-enzyme system. The immobilized enzymes retained approximately 63.3% activity after seven reuse cycles and 74% catalytic efficiency after 12days of storage at room temperature. Therefore, the developed co-immobilized multi-enzyme system holds significant potential for industrial biocatalysis applications.

Rh, Co, and N-doped titanium mesh-based carbon nanosheet arrays for enhanced nitrite reduction reaction and ammonia generation

The electrocatalytic transformation of nitrite pollutants into valuable ammonia is crucial for the nitrogen cycle. However, the complex multi-reaction process necessitates the development of highly efficient and selective electrocatalysts. This study focuses on the creation of Rh-doped Co@NC anchored on a titanium mesh as an electrocatalyst to enhance the electrocatalytic nitrite reduction reaction (eNO2RR) for NH3 synthesis. By doping a trace amount of Rh within zeolitic imidazolate framework-67 nanosheets and subsequently pyrolyzing the material, uniformly distributed Rh and Co nanoparticles are anchored onto N-functionalized porous carbon nanosheet arrays. Consequently, the three-dimensional electrode enhances mass and electron transfer while providing abundant surface-exposed active sites for NH3 generation through eNO2RR. The Rh0.6 wt%–Co@NC/TM electrocatalyst, with a minimal Rh loading of 0.6 wt%, exhibits the highest Faradaic efficiency of 98.8 ± 0.7 % at −0.3 V, along with an NH3 yield of 1777.1 ± 7.0 μmol h−1 cm−2 at −0.7 V. Additionally, the electrocatalyst demonstrates exceptional durability over 20 consecutive cycles and remarkable environmental adaptability. Extensive experimental studies reveal that the superior performance of Rh0.6 wt%–Co@NC/TM arises from the synergistic catalysis between Co and Rh, which enhances NO2– adsorption and the production of active hydrogen for eNO2RR to NH3 synthesis. This research highlights that Rh incorporation facilitates the kinetics of eNO2RR and offers valuable insights for the development of efficient electrocatalysts towards NH3 synthesis.

Immobilization of snailase and β-glucosidase on L-aspartic acid-modified magnetic amorphous ZIF for efficiently and sustainably producing ginsenoside compound K.

Improving the catalytic efficiency and recyclability of immobilized enzyme remained a serious challenge in industrial applications. Enzyme immobilization in the amorphous zeolite imidazolate framework (aZIF) preserved high enzyme activity, but still faced separation difficulties and a low catalytic efficiency in practice. In this study, a one-pot co-precipitation method was used to form the enzyme-aZIF/magnetic nanoparticle (MNP) biocomposite by rapidly precipitating snailase (Sna) and β-glucosidase (β-G) with metal/ligand on MNP and modifying with L-aspartic acid (Asp). Thanks to Asp modification protecting the natural conformation of internal protein molecules and MNP stabilizing the conformation of active enzymes after immobilizing, Sna&β-G in the carrier had more stable conformations and higher catalytic efficiency than those in conventional ZIF-8, increasing the catalytic efficiency for converting ginsenoside Rb1 to rare ginsenoside compound K (CK) to 79.16%. Moreover, while improving the stability of Sna&β-G, owing to the magnetism imparted by MNP, the immobilized enzyme maintained high enzyme activity and recovery after 7cycles by rapid magnetic separation. The results provided guidance for developing immobilized Sna&β-G biocomposites with ideal catalytic efficiency and easy recovery to catalyze ginsenoside Rb1 to rare ginsenoside CK.

Evaluation of the antibacterial activity of Co-based Zeolitic Imidazolate Frameworks and validation in a daily environment

Evaluation of the antibacterial activity of Co-based Zeolitic Imidazolate Frameworks and validation in a daily environment

Template-directed synthesis of Co, N-doped carbon spheres for efficient oxygen reduction reaction

An efficient template-directed strategy is proposed in this study to synthesize nitrogen-doped carbon spheres supported Co nanoparticles (Co@NCS), using polydopamine and ZnCo-based zeolite imidazole framework as the precursors. Benefiting from the integration of abundantly catalytic active sites, highly electronic conductivity, and hierarchically porous structure, the obtained Co@NCS displays impressive electrocayalytic performances. In an alkaline electrolyte, the Co@NCS catalyst delivers a half-wave potential of 0.84 V for oxygen reduction reaction (ORR) and an overpotential of 430 mV for oxygen evolution reaction (OER) at 10 mA cm−2, along with a superb durability and methanol tolerance. In addition, the zinc-air battery with Co@NCS as electrode catalyst affords a high specific capacity/power density as well as an intriguing long-cycle discharge–charge property, exhibiting a promising application prospect in the field of renewable resources.

Novel Binary and Ternary Biocomposites (Zeolitic Imidazolate Framework (ZIF‐67), Graphene Oxide (GO) Nanosheet, and Guar Gum (GG) Biopolymer): Synthesis and Adsorption of Malachite Green Cationic Dye

AbstractAccording to the research, zeolitic imidazolate framework (ZIF‐67) and graphene oxide (GO) nanosheets were synthesized with a guar gum (GG) biopolymer substrate to form two‐component hybrid biocomposites: GO/ZIF‐67 (GOZ), GG/ZIF‐67 (GZ), and three‐component hybrid with GO/GG/ZIF‐67 (GGZ) substrate polymer. These composites were used to adsorb malachite green (MG) cationic dye from an aqueous solution at room temperature. The chemical fractions, morphological and structural properties of the hybrid biocomposites were determined using a Fourier transform infrared spectrometer (FTIR), scanning electron microscope (SEM), X‐ray diffraction (XRD), and Brunauer–Emmett–Teller (BET) analyses. The adsorption of MG dye was carried out on the two‐component and three‐component hybrid biocomposites with a polymer substrate under different experimental conditions. The high surface area of GZ, GOZ, and GGZ was 1362.89, 754.89, and 833.67 m2 g−1, respectively, and the total pore volume was 0.90 cm3 g−1 for GZ, and 0.51 cm3 g−1 for GOZ and GGZ, respectively. The removal of MG pollutant follows the pseudo‐second order model and the Langmuir model. The adsorption mechanism involves hydrogen bonding, π‐π stacking, and electrostatic interactions. The GOZ, GZ, and GGZ hybrid biocomposites showed the maximum removal efficiency at 66.6%, 74.4%, and 90.1%, respectively. The data show that the removal of MG after 3 cycles was 90%, 86%, and 82%.

Hybrid of CdS/ZIF-11 with highly efficient charge separation for photocatalytic degradation of Tetracycline: fabrication, catalytic optimization, physicochemical studies

ABSTRACT A zeolitic imidazolate framework and cadmium sulphide hybrid (CdS/ZIF-11, CdS: 14, 32, 50, 68 mg) were created for the first time, and its efficacy as a photocatalyst for Tetracycline (TC) degradation was examined. XRD, FTIR, DRS, PL, FESEM, EDS, BET, and EIS were used to characterise the synthetic materials. The distinct peaks of ZIF-11 and CdS were found in the XRD patterns of composites at 4.37º and 26.85º, respectively. However, the combination CdS(68)/ZIF-11 did not produce any ZIF-11 structure. FESEM images of composites showed that the RHO morphology of ZIF-11 was evident and that the ZIF-11 surface was coated with CdS nanoparticles. Their relative band gaps were found to be 4.05, 1.83, (2.32 and 3.67), (2.05 and 3.8)eV for CdS, ZIF-11, CdS(32)/ZIF-11, and CdS(50)/ZIF-11. ZIF-11, CdS(32)/ZIF-11, and CdS(50)/ZIF-11 samples were found to have surface areas of 219.02, 30.965, and 186.23 m2/g, respectively. The electron/hole recombination in the CdS(32)/ZIF-11 nanostructure was lower than in ZIF-11, per PL and EIS studies. The photocatalytic degradation efficiency of 20 ppm TC solution, pH = 7, under visible light using 0.1 g/L of CdS(32)/ZIF-11 was three times higher than that of other composites. Therefore, this composite was selected as the best sample and the degradation operating parameters were optimised using it. The optimal photocatalyst concentration under visible light irradiation by CdS(32)/ZIF-11, was determined to be (0.55 mg/L or 0.11 g), pH = 5 and the TC concentration was (40 mg/L or 0.008 g), resulting in a maximum efficiency of 79.2%. TC (40 ppm) degrades with a first order rate constant equal to 0.016 min−1. The CdS(32)/ZIF-11 sample was suggested to be subject to the Z-scheme mechanism. For three successive cycles, the aforementioned sample exhibited satisfactory stability. All things considered, the CdS/ZIF-11 combination may find impressive uses in pollution treatment.

Construction of a hydrazine electrochemical sensor using Ag@ZIF as the electrode material.

In recent years, the fabrication of hydrazine sensors has received extensive attention because of the toxicity of hydrazine to the environment and human beings. It is thus important to design and develop efficient electrode modifiers for the construction of hydrazine electrochemical sensors. Herein, we reported the benign synthesis of a silver (Ag)-doped zinc-based zeolitic imidazolate framework (ZIF-8). The synthesized Ag@ZIF-8 was characterized by various advanced physiochemical characterization methods, including X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDX). A screen-printed electrode (SPE) was modified with the prepared Ag@ZIF-8. The cyclic voltammetry (CV) and linear sweep voltammetry (LSV) methods were used for assessing its sensing towards hydrazine. The obtained results showed a reasonable detection limit (0.1 μM), sensitivity (1.98 μA μM cm-2), stability, selectivity, and repeatability using Ag@ZIF-8/SPE as a hydrazine sensor. The real-sample investigations demonstrated recovery rates of 96-97%.

Defect-engineered C,N-ZnO/Co3O4/CoFe2O4/Fe3O4 for ultra-fast tetracycline degradation and environmental impact assessment using an in silico mathematical model

A significant breakthrough has been achieved in the ultra-fast degradation of toxic contaminants in wastewater. Novel C, N co-doped ZnO/Co3O4/CoFe2O4/Fe3O4 quaternary oxide was engineered using a tri-metallic zeolitic imidazolate framework (Zn/Co/Fe-ZIF). The synthesized material degraded 85% tetracycline (TC) within just 15 s of visible light illumination (and achieved a total degradation of 90.9% in 6 min). The catalyst's remarkable performance was ascribed to the synergistic effect of dual S-scheme heterojunctions at the oxide's interface and the light-independent activation of H2O2 by the multivalent cationic sites (Co3+/Co2+ and Fe3+/Fe2+) on the catalyst. These two mechanisms not only reduced the TC degradation time to just a few seconds, but also unlocked the degradation potential of the catalyst in the absence of light (70% TC degradation was achieved under ambient dark conditions). XPS studies showed that the ZIF-mediated synthesis introduced double or triple oxygen vacancy sites and N substitutional defects, which enhanced the catalyst’s efficiency by increasing the production of reactive oxygen species on its surface. VB-XPS and UPS analysis were performed to correctly elucidate the charge transfer mechanism in the heterostructure. The results of EPR and LC–MS studies established that the synthesized heterostructure is capable of generating abundant reactive oxygen species which are responsible for the fragmentation of TC molecules within a short period of time. Furthermore, the toxicity profile of the generated degradation products was also assessed via an in silico approach. Interestingly, despite such a short degradation timeframe, the generated degradation products had lower toxicity than TC.

Enhancement of Solid‐State Lithium‐Ion Batteries Using Zeolitic Imidazolate Framework‐67 in Polyethylene Oxide‐Based Composite Polymer Electrolytes for Improved Ionic Conductivity and Stability

ABSTRACTPolyethylene oxide (PEO)‐based polymers are commonly used in solid‐state lithium‐ion batteries, though their high crystallinity at room temperature reduces ionic conductivity. In this research, zeolitic imidazolate framework‐67 (ZIF‐67), with its regular dodecahedral structure, large surface area, and numerous nanoscopic pores, is synthesized and uniformly dispersed into a PEO matrix to create a novel composite polymer electrolyte (CPE). ZIF‐67 effectively reduces PEO crystallinity and enhances the mechanical properties of the electrolyte by disrupting the order structure of the PEO polymer chains. The resulting CPE achieves an ion conductivity of 6.50 × 10−4 S cm−1, and demonstrated high interfacial compatibility and stability with optimized ZIF‐67 content. Furthermore, the LiCoO2/CPE/Li battery exhibits good cycle stability at 0.1 C, with discharge capacities of 130.81, 125.31, and 112.25 mAh/g at 0.1, 0.2, and 0.5 C. Therefore, ZIF‐67 presents a promising strategy for enhancing battery performance and developing high‐performance lithium‐ion batteries.

Tailoring molecular diffusion in core‐shell zeolite imidazolate framework composites realizes efficient kinetic separation of xylene isomers

The separation of xylene isomers is a critical and energy‐intensive process in the petrochemical industry, primarily due to their closely similar molecular structures and boiling points. In this work, we report the synthesis and application of a novel core‐shell zeolitic imidazolate framework (ZIF) composite, ZIF‐65@ZIF‐67, designed to significantly enhance the kinetic separation of xylene isomers through a synergistic "shell‐gated diffusion and core‐facilitated transport" strategy. The external ZIF‐67 shell selectively restricts the diffusion of larger isomers (MX and OX), while the internal ZIF‐65 core accelerates the diffusion of PX, thereby amplifying the diffusion differences among the isomers. This architecture yields remarkable improvements in both selectivity and diffusion rates, as demonstrated by vapor‐phase adsorption studies and molecular dynamics simulations. The ZIF‐65@ZIF‐67 composite exhibits up to 12.5 times higher PX/OX selectivity in liquid‐phase adsorption and 3.4 times higher dynamic selectivity in fixed‐column breakthrough experiments compared to the individual ZIF components. Theoretical simulations further corroborate the heterogeneous diffusion control mechanism, revealing the time‐dependent diffusion regulation within the core‐shell architecture. This work underscores the great potential of core‐shell MOF composites in optimizing molecular sieving processes for industrially significant separations and highlights a new route for enhancing kinetic separation efficiency in complex multicomponent systems.

Tailoring molecular diffusion in core-shell zeolite imidazolate framework composites realizes efficient kinetic separation of xylene isomers.

The separation of xylene isomers is a critical and energy-intensive process in the petrochemical industry, primarily due to their closely similar molecular structures and boiling points. In this work, we report the synthesis and application of a novel core-shell zeolitic imidazolate framework (ZIF) composite, ZIF-65@ZIF-67, designed to significantly enhance the kinetic separation of xylene isomers through a synergistic "shell-gated diffusion and core-facilitated transport" strategy. The external ZIF-67 shell selectively restricts the diffusion of larger isomers (MX and OX), while the internal ZIF-65 core accelerates the diffusion of PX, thereby amplifying the diffusion differences among the isomers. This architecture yields remarkable improvements in both selectivity and diffusion rates, as demonstrated by vapor-phase adsorption studies and molecular dynamics simulations. The ZIF-65@ZIF-67 composite exhibits up to 12.5 times higher PX/OX selectivity in liquid-phase adsorption and 3.4 times higher dynamic selectivity in fixed-column breakthrough experiments compared to the individual ZIF components. Theoretical simulations further corroborate the heterogeneous diffusion control mechanism, revealing the time-dependent diffusion regulation within the core-shell architecture. This work underscores the great potential of core-shell MOF composites in optimizing molecular sieving processes for industrially significant separations and highlights a new route for enhancing kinetic separation efficiency in complex multicomponent systems.

B Doped Zn Single‐Atom Nanozyme With Enhanced Oxidase‐Like Activity Combined CRISPR/Cas13a System for RNA Sensing

AbstractSingle‐atom nanozyme (SAZ) with peroxidase‐like activity has attracted great attention in point‐of‐care (POC) diagnostic, but the use of unstable H2O2 in peroxidase catalytic reactions often leads to low detection accuracy. Thus, developing SAZ with high oxidase (OD)‐like activity to construct RNA sensing systems independent of H2O2 is imperative for improving accuracy. Herein, a novel strategy to fabricate boron‐nitrogen co‐doped zinc SAZ (ZnBNC‐SAZ) with excellent OD‐like activity by carbonizing Zn based zeolitic boron imidazolate frameworks is reported. The electron deficient B in imidazolate ligand can form Zn─N─B bond in situ during high temperature pyrolysis, which can regulate the electronic structure of Zn and further upshift the d‐band center of Zn to improve the OD‐like activity. With ZnBNC‐SAZ as signal generator, a new method for sensitive RNA detection is developed by combining CRISPR/ cas13 system with terminal deoxynucleotidyl transferase‐induced DNA extension reaction. The limits of detection for RNAs are as low as 20 aM. The proposed biosensor is adaptable to a lateral‐flow‐based readout and is universally applicable for sensing various RNAs by programming the guide RNA. Importantly, the proposed biosensor can monitor the cellular differentiation and identify patients with cervical carcinoma, showing great potential for application in facile POC diagnosis.

Solvent-Free Synthesis of Co-Based Zeolitic Imidazolate Framework (ZIF-9) for the Removal of Congo Red from Water

Solvent-Free Synthesis of Co-Based Zeolitic Imidazolate Framework (ZIF-9) for the Removal of Congo Red from Water

Electrochemical sensor based on multi-walled carbon nanotubes and two-dimensional zeolitic imidazolate framework nanosheets: Application in determining dacarbazine

Background and Purpose: Cancer is a serious public health concern, hence the determination of dacarbazine as a significant chemotherapeutic agent is very important. Experimental Approach: In the present work, we describe using a facile method to synthesize a nanocomposite of multi-walled carbon nanotubes (MWCNTs) and two-dimensional zeolitic imidazolate framework nanosheets (2D ZIF-L NSs). The resulting MWCNTs/2D ZIF-L NSs nanocomposite was characterized by field-emission scanning electron microscopy. The MWCNTs/2D ZIF-L NSs nanocomposite was subsequently used to modify a screen-printed carbon electrode (SPCE) to achieve an electrochemical sensing platform for the detection of dacarbazine. Conclusion: This detection method can be used as a valuable tool in the analysis of pharmaceutical formulations to bring benefits in the cancer treatment.

Silver embedded porous carbon composite for high-performance lithium-metal anode

ABSTRACT Using a lithium (Li) metal anode is essential for high-energy batteries, however, dendritic Li growth is unavoidable during Li plating and stripping processes. Strategically, a porous carbon structure derived from a metal-organic framework is suggested for directly storing metallic Li, although problems still exist with plating Li from the core to the surface and with stripping Li from the surface. Herein, we strategically utilize the carbon structure of zeolitic imidazolate framework-8 as an anode and replace the inactive residual Zn with Ag through galvanic displacement. The strong affinity of Ag for Li ions facilitates the transfer of plating from the surface of the carbon structure to its interior. After determining the optimal conditions for galvanic displacement by varying reaction times and temperatures, we carefully evaluate the electrochemical performance.