Design of three-dimensional faradic electrode materials for high-performance capacitive deionization

Coordination Chemistry Reviews, Год журнала: 2024, Номер 510, С. 215835 - 215835

Опубликована: Март 28, 2024

Язык: Английский

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Coordination Confined Silver‐Organic Framework for High Performance Electrochemical Deionization

Advanced Science, Год журнала: 2024, Номер 11(28)

Опубликована: Май 2, 2024

Abstract Silver (Ag) is deemed a promising anode material for capacitive deionization (CDI) due to its high theoretical capacity and efficient selectivity Cl − . However, the strong volume change during conversion reaction significantly undermines cycling performance of Ag electrode. Additionally, achieving well‐dispersed in active matrix challenging, as electrodes prepared by conventional thermal reduction tend agglomerate. Herein, organic linker confinement strategy proposed, applying metal–organic framework (MOF) chemistry between nodes ligands construct Ag‐based MOF. The uniform dispersion at molecular level, confined matrix, efficiently enhances utilization sites, strengthens interfacial stability Ag. Consequently, Ag‐MOF CDI exhibits an excellent removal 121.52 mg g −1 20 mA 500 L NaCl solution, rate 60.54%. After 100 cycles, retention 96.93% achieved. Furthermore, capture mechanism elucidated through density functional theory (DFT) calculations, ex situ XRD, Raman XPS. This ingenious electrode design can offer valuable insights development high‐performance applications.

Язык: Английский

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Exploring the potency of EDTA-based Ni-Co-MOF nanospheres for highly durable battery-supercapacitor hybrids

Electrochimica Acta, Год журнала: 2024, Номер 486, С. 143970 - 143970

Опубликована: Фев. 16, 2024

Язык: Английский

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Ultra-stable Co3O4/NiCo2O4 double-shelled hollow nanocages as headspace solid-phase microextraction coating for enhanced capture of polychlorinated biphenyls

Chemical Engineering Journal, Год журнала: 2024, Номер 488, С. 150876 - 150876

Опубликована: Апрель 1, 2024

Язык: Английский

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Enhanced Capacitive Deionization of Hollow Mesoporous Carbon Spheres/MOFs Derived Nanocomposites by Interface‐Coating and Space‐Encapsulating Design

Advanced Science, Год журнала: 2024, Номер 11(39)

Опубликована: Авг. 14, 2024

Abstract Exploring new carbon‐based electrode materials is quite necessary for enhancing capacitive deionization (CDI). Here, hollow mesoporous carbon spheres (HMCSs)/metal‐organic frameworks (MOFs) derived (NC(M)/HMCSs and NC(M)@HMCSs) are successfully prepared by interface‐coating space‐encapsulating design, respectively. The obtained NC(M)/HMCSs NC(M)@HMCSs possess a hierarchical nanoarchitecture with abundant nitrogen doping, high specific surface area, meso‐/microporous pores. These merits conducive to rapid ion diffusion charge transfer during the adsorption process. Compared NC(M)/HMCSs, exhibit superior electrochemical performance due their better utilization of internal space carbon, forming an interconnected 3D framework. In addition, introduction Ni ions more synergistic effect between ZIF(M)‐derived N‐doped shell compared other (Mn, Co, Cu ions). resultant Ni‐1‐800‐based CDI device exhibits excellent salt capacity (SAC, 37.82 mg g −1 ) good recyclability. This will provide direction MOF nanoparticle‐driven assembly strategy application CDI.

Язык: Английский

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Construction of fully coated polypyrrole oxygen-barrier film based on MXene nanosheets for high reliability capacitive deionization

Separation and Purification Technology, Год журнала: 2024, Номер 337, С. 126362 - 126362

Опубликована: Янв. 9, 2024

Язык: Английский

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Elaborate designed sandwich structural faradic material NPC/NiMn-LDH/MXene for enriched ion accessible transfer pathways in capacitive deionization

Chemical Engineering Journal, Год журнала: 2024, Номер 484, С. 149491 - 149491

Опубликована: Фев. 9, 2024

Язык: Английский

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Biomimetic Mineralization Synthesis of Flower‐Like Cobalt Selenide/Reduced Graphene Oxide for Improved Electrochemical Deionization

Small, Год журнала: 2024, Номер 20(31)

Опубликована: Март 4, 2024

Abstract Rationally and precisely tuning the composition structure of materials is a viable strategy to improve electrochemical deionization (EDI) performances, which yet faces enormous challenges. Herein, an eco‐friendly biomimetic mineralization synthetic developed synthesize flower‐like cobalt selenide/reduced graphene oxide (Bio‐CoSe 2 /rGO) composites used as advanced sodium ion adsorption electrodes. Benefiting from slow controllable reaction kinetics provided by process, CoSe uniformly constructed in rGO, endowed with robust architecture, substantial sites rapid charge/ion transport. The Bio‐CoSe /rGO electrode yields maximum salt capacity rate 56.3 mg g −1 5.6 min respectively, 92.5% retention after 60 cycles. These results overmatch pristine irregular granular synthesized hydrothermal method, proving structural superiority composites. Furthermore, in‐depth study indicates chemisorption nature adsorption. structures long term EDI cycles are intensively studied unveil mechanism behind such superior performances. This offers one effective method for constructing electrodes, enriches application strategy.

Язык: Английский

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Thiosalicylic‐Acid‐Mediated Coordination Structure of Nickel Center via Thermodynamic Modulation for Aqueous Ni–Zn Batteries

Advanced Materials, Год журнала: 2024, Номер 36(32)

Опубликована: Май 30, 2024

Uniquely functional nanocomplexes with rich coordination environments are critical in energy storage. However, the construction of structurally versatile remains challenging. In this study, a nickel-based complex structural variations is designed via thermodynamic modulation using dual-ligand synthesis strategy. A nanomaterial (NiSA-SSA-160) large specific surface area synthesized around competing host and guest molecules that differ terms chemical properties O S elements. Concurrently, environment NiSA-SSA-160 investigated X-ray absorption fine structure spectroscopy. The thiol groups synergistically induced an electron-rich Ni structure, thus increasing electron density central atom. electrochemical performance assembled NiSA-SSA-160//Zn@CC battery shown to improve significantly, maximum 0.54 mWh cm

Язык: Английский

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Rational design of LDH-Derived NiFe layered double oxides as capacitive deionization anode for efficient chlorine ion storage with a “memory effect”

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 162289 - 162289

Опубликована: Янв. 1, 2025

Язык: Английский

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