Crosslinked cyanometallate–chitosan nanosheet assembled aerogels as efficient catalysts to boost polysulfide redox kinetics in lithium–sulfur batteries

Fang, Zhengsong; Hu, Xuanhe; Shu, Chenhao; Jian, Junhua; Liu, Jie; Yu, Dingshan

doi:10.1039/d0ta04910g

Cited by 15 publications

(4 citation statements)

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“…In this paper, we described the crystal structures of 3, H and 4). The relevance of this work is increased because of the importance of cyanidometallates as nanomagnets 26 and photosensitizers 42 and in the fields of lithium batteries, 43 dielectric transistors, 44 and sensors. 45 The structure-defining contact for both salts is the chargeassisted I•••N HaB between the I atom of the iodonium cations and the N atoms of the CN − ligands.…”

Section: Discussionmentioning

confidence: 99%

“…Rectangular heterotetrameric adducts are formed and they further assemble into infinite chains by sharing the two vertexes occupied by the [M(CN) 4 ] 2– tectons (Figures , H and ). The relevance of this work is increased because of the importance of cyanidometallates as nanomagnets and photosensitizers and in the fields of lithium batteries, dielectric transistors, and sensors …”

Section: Discussionmentioning

confidence: 99%

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Diaryliodonium Tetracyanidometallates Self-Assemble into Halogen-Bonded Square-Like Arrays

Suslonov

Soldatova

Postnikov

et al. 2022

Crystal Growth & Design

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Two diphenyliodonium tetracyanidometallates, [Ph 2 I] 2 [M(CN) 4 ] (M = Ni and Pd), were prepared through anion metathesis. Their X-ray structural analyses show that the structure-defining contact for both crystals is the charge-assisted I•••N halogen bond (HaB) formed between the I atom of the iodonium cations and the N atoms of the CN − ligands. These HaBs assemble the bidentate and 90°-orienting HaB donor Ph 2 I + and the tetradentate, square planar, and 90/180°-orienting HaB acceptors [M(CN) 4 ] 2− into supramolecular rectangles, which further assemble into infinite chains by sharing the vertexes occupied by the [M(CN) 4 ] 2− anions. The noncovalent nature of these contacts was confirmed by density functional theory calculations (M06/def2-TZVP) followed by combined topological analysis of the electron density distribution in the quantum theory of the atoms-in-molecules approach and noncovalent interaction analysis. The philicities of the HaB partners were further verified by the analysis of electron localization function projections, electron density/electrostatic potential profiles along the I•••N bond paths, natural bond orbital analysis, and the natural population analysis or atoms-in-molecules charge sums in model systems.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Diaryliodonium Tetracyanidometallates Self-Assemble into Halogen-Bonded Square-Like Arrays

Suslonov

Soldatova

Postnikov

et al. 2022

Crystal Growth & Design

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“…3− decoration, both sulfur utilization and LPS immobilization are significantly improved, thus facilitating the deposition of Li 2 S. [248,249] Other metal coordinated organic compounds such as metallic phthalocyanine [250] and cyanometallate [251,252] are also considered to be promising electrocatalysts for Li 2 S deposition in view of their rich metal sites. For instance, Chen et al [251] developed an ammonia etching approach to selectively remove Fe III -H 2 O moieties from ferric hexacyanoferrate (FeHCF), which produces massive coordinatively unsaturated sites and considerable mesopores in the matrix (FeHCF-A).…”

Section: Transition-metal-coordinated Organic Compoundsmentioning

confidence: 99%

Interface Engineering Toward Expedited Li₂S Deposition in Lithium–Sulfur Batteries: A Critical Review

Sun

Liu

et al. 2023

Advanced Materials

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Lithium–sulfur batteries (LSBs) with superior energy density are among the most promising candidates of next‐generation energy storage techniques. As the key step contributing to 75% of the overall capacity, Li2S deposition remains a formidable challenge for LSBs applications because of its sluggish kinetics. The severe kinetic issue originates from the huge interfacial impedances, indicative of the interface‐dominated nature of Li2S deposition. Accordingly, increasing efforts have been devoted to interface engineering for efficient Li2S deposition, which has attained inspiring success to date. However, a systematic overview and in‐depth understanding of this critical field are still absent. In this review, the principles of interface‐controlled Li2S precipitation are presented, clarifying the pivotal roles of electrolyte–substrate and electrolyte–Li2S interfaces in regulating Li2S depositing behavior. For the optimization of the electrolyte–substrate interface, efforts on the design of substrates including metal compounds, functionalized carbons, and organic compounds are systematically summarized. Regarding the regulation of electrolyte–Li2S interface, the progress of applying polysulfides catholytes, redox mediators, and high‐donicity/polarity electrolytes is overviewed in detail. Finally, the challenges and possible solutions aiming at optimizing Li2S deposition are given for further development of practical LSBs. This review would inspire more insightful works and, more importantly, may enlighten other electrochemical areas concerning heterogeneous deposition processes.

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“…TiO 2 @MMTNS/ CMC/CS nanocomposite was studied for its absorption of methylene blue dye [39]. Cyanometallate/chitosan nanosheet acts as a catalyst to enhance the polysulfide redox reaction in batteries in a work conducted by Fang et al [40]. Chitosan nanosheets/ Honey compounds were tested for wound healing effects in male BALB/c Mice.…”

Section: Detection Of Mutated Dnamentioning

confidence: 99%

Biomedical Applications of Chitosan-Coated Nanosheets

Rajendran,

Rathinam,

Kumar

et al. 2023

Advances in Nanosheets [Working Title]

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Nanotechnology paves the way for the synthesis of novel nanomaterials in one or more dimensions with a size range of less than 100 nm and enhances its specific application because of its unique properties. Nanosheets are a type of layered nanomaterial mostly designed using graphene, poly(L-lactic acid) (PLLA), and molybdenum disulfide by liquid exfoliation method and are of great interest. Nanosheets fabricated could be employed with other materials to enhance their application in diverse areas. Chitosan, a cationic polymer in conjugation with various nanosheets, was designed for various applications like sensors, cancer treatment, drug delivery, and so on. Chitosan-decorated different nanosheets were formulated by various methods, and their diverse application will be focused.

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Crosslinked cyanometallate–chitosan nanosheet assembled aerogels as efficient catalysts to boost polysulfide redox kinetics in lithium–sulfur batteries

Abstract: A novel class of crosslinked cyanometallate/chitosan nanosheet assembled aerogels is fabricated via simple yet effective sol-gel polymerization and subsequent dehydration and functions as efficient electrocatalysts for boosting the polysulfide redox...

Cited by 15 publications

References 51 publications

Diaryliodonium Tetracyanidometallates Self-Assemble into Halogen-Bonded Square-Like Arrays

Diaryliodonium Tetracyanidometallates Self-Assemble into Halogen-Bonded Square-Like Arrays

Interface Engineering Toward Expedited Li₂S Deposition in Lithium–Sulfur Batteries: A Critical Review

Biomedical Applications of Chitosan-Coated Nanosheets

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Crosslinked cyanometallate–chitosan nanosheet assembled aerogels as efficient catalysts to boost polysulfide redox kinetics in lithium–sulfur batteries

Abstract: A novel class of crosslinked cyanometallate/chitosan nanosheet assembled aerogels is fabricated via simple yet effective sol-gel polymerization and subsequent dehydration and functions as efficient electrocatalysts for boosting the polysulfide redox...

Cited by 15 publications

References 51 publications

Diaryliodonium Tetracyanidometallates Self-Assemble into Halogen-Bonded Square-Like Arrays

Diaryliodonium Tetracyanidometallates Self-Assemble into Halogen-Bonded Square-Like Arrays

Interface Engineering Toward Expedited Li2S Deposition in Lithium–Sulfur Batteries: A Critical Review

Biomedical Applications of Chitosan-Coated Nanosheets

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Interface Engineering Toward Expedited Li₂S Deposition in Lithium–Sulfur Batteries: A Critical Review