Mesostructured crystals: Growth processes and features

Imai, Hiroaki

doi:10.1016/j.pcrysgrow.2016.04.011

Cited by 30 publications

(22 citation statements)

References 139 publications

(218 reference statements)

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“…[71] To promote the reactione fficiency,n umerous strategies are of considerable interest in band engineering, morphology tailoring, co-catalyst assistance, cooperativer eorganization and even reactione nvironmento ptimization. [71] To promote the reactione fficiency,n umerous strategies are of considerable interest in band engineering, morphology tailoring, co-catalyst assistance, cooperativer eorganization and even reactione nvironmento ptimization.…”

Section: Discussionmentioning

confidence: 99%

The Development of Functional Mesocrystals for Energy Harvesting, Storage, and Conversion

Zhang

Tachikawa

Fujitsuka

et al. 2017

Chemistry A European J

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Higher-ordered semiconductors have attracted extensive research interest as an adopted engineering for active solar energy harvesting, storage, and conversion. It is well-known that the effective separation and anisotropic migration of photogenerated charges are the basic driven force required for superior efficiency. However, the morphology and stoichiometric variation of these semiconductors play essential roles in their physicochemical properties of bulk and surface, especially for efficient interparticle or interfacial charge transfer. To this point, the strategy of controlling the topotactic transformation toward superstructures with optimized functionality is preferable for a wide range of optoelectronic and catalytic engineering applications. In this Minireview, we provide an overview of the crystal orientation, synthetic engineering, functional applications, and spatial and temporal charge dynamics in TiO mesocrystals and others. The viewpoint of in-depth understanding of the structure-related kinetics would offer an opportunity for design of versatile mesocrystal semiconductors sought-after for potential applications.

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Section: Discussionmentioning

confidence: 99%

The Development of Functional Mesocrystals for Energy Harvesting, Storage, and Conversion

Zhang

Tachikawa

Fujitsuka

et al. 2017

Chemistry A European J

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“…Especially, inspired by various biominerals in biological systems (e. g. teeth, bones etc. ), the strategy of biomimetic mineralization and assembly has been applied for the synthesis of mesocrystals, usually with hierarchical super‐structures assembled from nanocrystal subunits in a crystallographically oriented way . Mesocrystals typically are considered as hybrid materials between crystalline nano‐units and interspaced organic bio‐templates (e. g. biomacromolecules, proteins, peptides etc.…”

Section: Figurementioning

confidence: 99%

“…), the strategy of biomimetic mineralization and assembly has been applied for the synthesis of mesocrystals, usually with hierarchical super-structures assembled from nanocrystal subunits in a crystallographically oriented way. [18][19][20] Mesocrystals typically are considered as hybrid materials between crystalline nano-units and interspaced organic biotemplates (e. g. biomacromolecules, proteins, peptides etc. ); they can integrate the properties of individual nanocrystals into the mesostructured morphology, tailoring for new collective properties and specific applications.…”

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confidence: 99%

A Biomimetic‐Mineralization‐Inspired Hybrid Mesocrystal with Boosted Lithium Storage Properties

Fei

Zhu

2020

ChemistrySelect

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Smart controlling the structure and composition of hybrid anode materials to boost the electrochemical performance is still challenging yet significant for lithium ion batteries (LIBs). Herein, a biomimetic strategy is reported for the synthesis of mesostructured Fe3O4@N‐doped carbon (Fe3O4@CN) hybrid anodes, inspired by structural features and hybrid compositions of the biomineralized mesocrystals. By using the regenerated silk fibroin (RSF)‐biomineralized hematite (ɑ‐Fe2O3) as a single precursor (RSF‐Fe2O3) followed by a simple annealing treatment, its interspaced RSF‐templates can be carbonized in situ to a kind of RSF‐derived CN material, which can further reduce the ɑ‐Fe2O3 to Fe3O4, generating Fe3O4@CN hybrid mesocrystal. Such a biomimetically designed hybrid mesostructure concurrently possesses electrochemically favorable features with abundant internal voids and uniformly introduced carbonaceous layer. Owing to these distinctive structural and compositional merits, the Fe3O4@CN electrode exhibits remarkable lithium storage properties embracing high capacity, outstanding rate capability, as well as long‐term stable cycling life.

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“…The self‐assembly of nanocrystals usually make the building blocks produce “resultant force” and improve performance that is difficult to be achieved through the building block itself alone . Although the growth mechanism of mesocrystal is not very clear up to now, the outstanding performances of this kind of solid materials are supported strongly by the experimental facts . For example, compared with the classical TiO 2 nanomaterials, TiO 2 mesocrystals not only keep the advantages including high specific surface area and short migration path of charge, but also overcome the deficiency such as easy to agglomerate, low crystallinity and hard to separate solid from liquid.…”

Section: Introductionmentioning

confidence: 99%

“…[20] Although the growth mechanism of mesocrystal is not very clear up to now, the outstanding performances of this kind of solid materials are supported strongly by the experimental facts. [21] For example, compared with the classical TiO 2 nanomaterials, TiO 2 mesocrystals not only keep the advantages including high specific surface area and short migration path of charge, but also overcome the deficiency such as easy to agglomerate, low crystallinity and hard to separate solid from liquid. What is more, owing to the porous structure and high migration rate of photogenerated charges, TiO 2 mesocrystals show better photocatalytic performance.…”

Section: Introductionmentioning

confidence: 99%

1D Rodlike mBiVO₄ Mesocrystals: Preparation, Formation Mechanism and Photocatalytic Performance

et al. 2019

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Mesocrystals have attracted more attention owing to their unique structures and properties. Nevertheless, facile and green synthesis of well‐defined mesocrystals still remains a significant challenge. Herein, one‐dimensional (1D) rodlike monoclinic scheelite phase BiVO4 (mBiVO4) mesocrystals having superstructures orderly assembled by mBiVO4 nanoparticle building blocks, were created via a facile solvothermal method in the glycerol (Gly)/water mixed solvent without any additives. By adjusting the dosage of Gly and pH value of the reaction system, the microstructure of BiVO4 can be accurately regulated. The obtained samples were carefully characterized by XRD, SEM, TEM, HRTEM, BET, FTIR, PL and UV‐vis techniques. The lower pH value and the higher dosage of Gly were propitious to form rodlike mBiVO4 mesocrystals. Of course, the kind and concentration of reaction species in the system and the assembly force were affected by the dosage of Gly and pH value. The possible formation mechanism of the BiVO4 mesocrystals was proposed on the basis of these analyses. The optimized rodlike mBiVO4 mesocrystal prepared with 8 mL of Gly at pH 2 exhibited the highest photocatalytic degradation activity for methylene blue (MB) under simulated sunlight irradiation, which could be attributed to its phase composition, higher surface area, stronger light absorption and 1D rodlike morphology with short L/D ratio which may increase the separation efficiency of photogenerated electrons and holes.

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Mesostructured crystals: Growth processes and features

Cited by 30 publications

References 139 publications

The Development of Functional Mesocrystals for Energy Harvesting, Storage, and Conversion

The Development of Functional Mesocrystals for Energy Harvesting, Storage, and Conversion

A Biomimetic‐Mineralization‐Inspired Hybrid Mesocrystal with Boosted Lithium Storage Properties

1D Rodlike mBiVO₄ Mesocrystals: Preparation, Formation Mechanism and Photocatalytic Performance

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Mesostructured crystals: Growth processes and features

Cited by 30 publications

References 139 publications

The Development of Functional Mesocrystals for Energy Harvesting, Storage, and Conversion

The Development of Functional Mesocrystals for Energy Harvesting, Storage, and Conversion

A Biomimetic‐Mineralization‐Inspired Hybrid Mesocrystal with Boosted Lithium Storage Properties

1D Rodlike mBiVO4 Mesocrystals: Preparation, Formation Mechanism and Photocatalytic Performance

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Product

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1D Rodlike mBiVO₄ Mesocrystals: Preparation, Formation Mechanism and Photocatalytic Performance