Separation of the host-guest system for ferrocene derivatives in octahedral nanocages by electrochemical ionization

Chen, Zhide; Duan, Haitao; Gai, Yuping; Xie, Wenshuo; Deng, Wei; Jiang, Fei

doi:10.1016/j.ica.2021.120385

“…The catalysts of the positive and negative electrodes can promote the process to take place at a lower voltage [16][17][18]. So far, for the electrochemical water splitting process, the optimal catalysts for HER and OER are common precious metal materials for instance, Ir, Ru, and Pt, but these noble metals and their compounds are limited by low durability application and their high cost [19][20][21]. Consequently, researchers are committed to developing the catalysts for water electrolysis with high catalytic efficiency and lower preparation costs.…”

Section: Introductionmentioning

confidence: 99%

Construction of Bimetallic Co/Fe-Incorporated PTA/FDA Nanoclusters for Boosting Electrocatalytic Oxygen Evolution

Gai

¹

,

Hu

²

,

Deng

³

et al. 2023

International Journal of Energy Research

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Summary. Electrochemical water decomposition as a crucial approach for the gradual growth of renewable energy has attracted extensive attention. Metal-organic frameworks (MOFs) which benefit from ultra-high specific surface area, controllable nanostructures, and excellent porosity have been widely used as high activity catalyst for the decomposition of water by electrochemical means. Herein, the composition and morphology of metal–organic framework nanoclusters with bimetallic Co/Fe-incorporated PTA/FDA nanoclusters is designed for efficient and durable OER electrocatalysts, including CoFe-BTC/PTA, CoFe-BTC/FDA, and CoFe-PTA/FDA. The crystal structure of MOF materials is composed of alternating organic hydrocarbon BTC, PTA, or FDA and inorganic metal oxide layer. Co and Fe interact as central atoms, joining BTC, PTA, or FDA ligands to form a highly symmetric MOF structure. The electronic structures and active sites of various metals are different, and the insertion of iron atoms plays a certain role in the regulation of their electronic structures. CoFe-PTA/FDA shows significant OER overpotential η 10 = 295 mV (1.525 V vs. RHE) reached 10 mA cm-2, with 62.85 mV dec-1 for Tafel slope and pretty conspicuous stability (72 hours of continuous testing). The DFT calculation results show coordination unsaturated metal atom is the primary active center of these electrocatalytic reaction, and the coupling effect caused by adding Fe is the key to adjust the electrocatalytic activity.

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Cavity‐Partitioned Self‐Assembled Cage for Sequential Separation in Aqueous Solutions

Wang,

Zhang,

Zhang

et al. 2024

Angewandte Chemie

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The concept of pore space partition has emerged as an effective strategy for developing improved coordination‐based supramolecular porous materials with exceptional performance. Herein, we report that a water‐soluble self‐assembled tetrahedral cage 1 with a partitioned cavity shown excellent performance as a multifunctional extractant. The results show that this unique partitioned cavity can efficiently separate halogenated adamantanes, adamantane isomers, and polycyclic aromatic hydrocarbons. Furthermore, the influence of cavity‐partitioned cage 1 on the electrochemical properties of redox‐active molecules and electrochemically driven reversible host–guest process has also been demonstrated. The findings offer valuable insights into the design and development of new type of materials with controlled phase separation and tailored electrochemical properties.

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Cavity‐Partitioned Self‐Assembled Cage for Sequential Separation in Aqueous Solutions

Wang,

Zhang,

Zhang

et al. 2024

Angew Chem Int Ed

0

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The concept of pore space partition has emerged as an effective strategy for developing improved coordination‐based supramolecular porous materials with exceptional performance. Herein, we report that a water‐soluble self‐assembled tetrahedral cage 1 with a partitioned cavity shown excellent performance as a multifunctional extractant. The results show that this unique partitioned cavity can efficiently separate halogenated adamantanes, adamantane isomers, and polycyclic aromatic hydrocarbons. Furthermore, the influence of cavity‐partitioned cage 1 on the electrochemical properties of redox‐active molecules and electrochemically driven reversible host–guest process has also been demonstrated. The findings offer valuable insights into the design and development of new type of materials with controlled phase separation and tailored electrochemical properties.

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Separation of the host-guest system for ferrocene derivatives in octahedral nanocages by electrochemical ionization

Cited by 6 publications

References 46 publications

Construction of Bimetallic Co/Fe-Incorporated PTA/FDA Nanoclusters for Boosting Electrocatalytic Oxygen Evolution

Construction of Bimetallic Co/Fe-Incorporated PTA/FDA Nanoclusters for Boosting Electrocatalytic Oxygen Evolution

Cavity‐Partitioned Self‐Assembled Cage for Sequential Separation in Aqueous Solutions

Cavity‐Partitioned Self‐Assembled Cage for Sequential Separation in Aqueous Solutions

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