Using commercially activated carbon, we developed a simple and effective direct chemical oxidation route to prepare good biocompatible multicolor photoluminescent carbon dots.

A TiNb₂O₇ material with a nanoporous structure was prepared by facile approach and can be used as an anode excellent rate cycling performance for long-life stationary lithium-ion batteries.

The synthesis of mesoporous Prussian blue analogues through a template-free methodology and the application these materials as high-performance cathode in sodium-ion batteries is presented. Crystalline mesostructures were produced synergistically coupled nanocrystal formation aggregation mechanism. As cathodes for batteries, all show reversible capacity 65 mA h g-1 at low current rate excellent cycle stability. reported method stands an environmentally friendly low-cost alternative to hard...

The cooperative self-assembly of silica species and cationic surfactant cetyltrimethylammonium chloride (CTA+Cl− or CTAC) the formation mesoporous nanoparticles occur following hydrolysis condensation precursor TEOS in solution. particle size can be controlled from ∼25 nm to ∼200 by adding suitable additive agents (e.g., inorganic bases, alcohols) which affect species. situ pH measurement synthesis system is introduced investigate process nanoparticles. Our results show that a certain...

The effect of thiolate ligands was explored on the catalysis CeO2 rod supported Au25(SR)18 (SR = −SCH2CH2Ph) by using CO oxidation as a probe reaction. Reaction kinetic tests, in situ IR and X-ray absorption spectroscopy, density functional theory (DFT) were employed to understand how affect nature active sites, activation O2, reaction mechanism kinetics. intact is found not able adsorb CO. Only when are partially removed, starting from interface between at temperatures 423 K above, can...

We have established a facile and generalizable "silica-assisted" synthesis for diverse carbon spheres—a category that covers mesoporous nanospheres, hollow yolk-shell nanospheres—by using phenolic resols as polymer precursor, silicate oligomers an inorganic hexadecyl trimethylammoniumchloride template. The particle sizes of the nanospheres are uniform easily controlled in wide range 180–850 nm by simply varying ethanol concentrations. All three types high surface areas large pore volumes...

A porous liquid containing empty cavities has been successfully fabricated by surface engineering of hollow structures with suitable corona and canopy species. By taking advantage the liquid-like polymeric matrices as a separation medium gas transport pathway, this unique can function promising candidate for separation. Moreover, such facile synthetic strategy be further extended to fabrication other types nanostructure-based liquid, opening up new opportunities preparation liquids...

The development of noble-metal-free heterogeneous catalysts is promising for selective oxidation aromatic alcohols; however, the relatively low conversion non-noble metal under solvent-free atmospheric conditions hinders their industrial application. Now, a holey lamellar high entropy oxide (HEO) Co0.2 Ni0.2 Cu0.2 Mg0.2 Zn0.2 O material with mesoporous structure prepared by an anchoring and merging process. HEO has ultra-high catalytic activity aerobic benzyl alcohol. Up to 98 % can be...

A template-free synthesis of a hierarchical microporous-mesoporous metal-organic framework (MOF) zinc(II) 2,5-dihydroxy-1,4-benzenedicarboxylate (Zn-MOF-74) is reported. The surface morphology and porosity the bimodal materials can be modified by etching pore walls with various solvents for different reaction times. This strategy enables preparation stable frameworks mesopores exceeding 15 nm, which was previously unattained in MOFs ligand-extension method.

Carbon-based materials are the most popular material types in both fundamental research and industrial applications, partly because of their well-controlled nano-morphologies. In past two decades, we have witnessed a number breakthroughs carbon research: fullerenes, nanotubes, more recently graphene. Nowadays, nanospheres attracting attention worldwide due to excellent performance various fields: drug delivery, heterogeneous catalysis, encapsulation support electrode materials. Actually,...

The construction of refined architectures plays a crucial role in performance improvement and application expansion advanced materials. synthesis carbon microspheres with hierarchical structure is still problem synthetic methodology, because it difficult to achieve the necessary delicate control interior outer shell across microscale nanoscale. Nitrogen-doped multichamber (MCC) are realized here via surfactant-directed space-confined polymerization strategy. MCC precursor not traditional...

Abstract Multiphasic titanium dioxide (TiO 2 ) possessing abundant heterophase junctions have been widely used for various photocatalytic applications. Current synthesis of multiphasic TiO mainly involves the process thermal treatment and multiple steps rigorous reactions, which is adverse to controlling crystal phases phase ratios . Meanwhile, resulting products relatively low surface area nonporous structure. Here, a facile polymer‐assisted coordination‐mediated self‐assembly method...

The enormous complexity of the carbon material family has provoked a phenomenological approach to develop its potential in different applications. Although electronic, chemical, mechanical, and magnetic properties materials have been widely discussed based on defect control engineering, there is still lack fundamental understanding surface chemistry, which leads many controversial conclusions. Here, by analyzing various defects surface, some commonly neglected aspects misunderstandings this...

The photoresponse and photocatalytic efficiency of bismuth oxychloride (BiOCl) are greatly limited by rapid recombination photogenerated carriers. construction porous single-crystal BiOCl photocatalyst can effectively alleviate this issue provide accessible active sites. Herein, a facile chelated ion-exchange strategy is developed to synthesize mesoporous single-crystalline nanosheets (BiOCl MSCN) using acetic acid ammonia solution respectively as chelating agent ionization promoter. strong...

Supported metal catalysts have played an important role in optimizing selective semihydrogenation of alkynes for fine chemicals. There into, nitrogen-doped carbons, as a type promising support materials, attracted extensive attentions. However, due to the general phenomenon random doping nitrogen species support, it is still atremendous challenge finely identify which configuration dominates catalytic property alkynes' semihydrogenation. Herein, reported that uniform mesoporous N-doped...

Abstract The intermetallic phase control is a promising strategy to optimize the physicochemical properties of ordered compounds and engineer their performance in various (electro)catalytic reactions. However, phase‐dependent catalytic still rarely reported because difficulty synthesizing intermetallics with precisely controlled structures at atomic level, especially having mesoscopic structure/morphology. Here, we successfully precise synthesis two phase‐pure mesoporous gallium‐platinum (...

Abstract The development of highly efficient electrocatalysts for complete oxidation ethylene glycol (EG) in direct EG fuel cells is decisive importance to hold higher energy efficiency. Despite some achievements, their progress, especially electrocatalytic selectivity oxidated C 1 products, remarkably slower than expected. In this work, we developed a facile aqueous synthesis Ir‐doped CuPd single‐crystalline mesoporous nanotetrahedrons (Ir‐CuPd SMTs) as high‐performance electrocatalyst...

Here we describe a lab-in-a-shell strategy for the preparation of multifunctional core-shell nanospheres consisting core metal clusters and an outer microporous silica shell. Various (e.g., Pd Pt) were encapsulated confined in void space mediated by entrapped polymer dots inside hollow acting first as complexing agent ions additionally encapsulator clusters, limiting growth suppressing sintering. The hybrid structures exhibit exceptional size-selective catalysis allylic oxidations substrates...

Nanoporous ionic organic networks (PIONs) with a high density (three cation-anion pairs per unit) have been synthesized by facile SN2 nucleophilic substitution reaction. Owing to the electrostatic and steric effect, those porous channels can stabilize support gold (Au) nanoparticles (NPs) in 1-2 nm. The Au@PION hybrid materials used as heterogeneous catalyst were highly active, selective, stable aerobic oxidation of saturated alcohols.

Abstract A soft chemistry synthetic strategy based on a Friedel–Crafts alkylation reaction is developed for the textural engineering of phenolic resin (PR) with robust mesoporous framework to avoid serious shrinkage and maximize retention organic functional moieties. By taking advantage structural benefits molecular bridges, resultant sample maintains bimodal micro‐mesoporous architecture well‐preserved groups, which effective carbon capture. Moreover, this protocol can be further extended...

Optical nanomaterials with intense absorption in near-infrared (NIR) region hold great promise for biomedical applications such as photothermal therapy (PTT) and photoacoustic imaging (PAI). In this work, we report mesoporous carbon nanospheres (Meso-CNs) broadband the UV-Vis-NIR (300-1400 nm) explore their potential a multifunctional platform chemo-photothermal therapy.