Vacancy engineering of FeP dispersed N, P-doped porous carbon for high-performance capacitive deionization

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149666 - 149666

Published: Feb. 15, 2024

Language: Английский

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Coordination Confined Silver‐Organic Framework for High Performance Electrochemical Deionization

Advanced Science, Journal Year: 2024, Volume and Issue: 11(28)

Published: May 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.

Language: Английский

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Highly selective lithium extraction from salt lake via carbon-coated lithium vanadium phosphate capacitive electrode

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 482, P. 148985 - 148985

Published: Jan. 22, 2024

Language: Английский

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

Small, Journal Year: 2024, Volume and Issue: 20(31)

Published: March 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.

Language: 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, Journal Year: 2024, Volume and Issue: 484, P. 149491 - 149491

Published: Feb. 9, 2024

Language: Английский

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