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Silicon nanostructures (SiNSs) can provide multifaceted bioapplications; but preserving their subhundred nm size during high‐temperature silica‐to‐silicon conversion is the major bottleneck. The SC‐SSR utilizes an interior metal‐silicide stratum space at a predetermined radial distance inside silica nanosphere to guide the magnesiothermic reduction reaction (MTR)‐mediated synthesis of hollow and porous...
Here, lamellar confinement strategy is introduced for “sheet‐to‐nanocrystals (NCs)” conversion within a 2D‐SiO2 envelope, which constructs a catalytic nanocartridge holding a platoon of isolated and in‐plane‐aligned ultrasmall Ni‐NCs, performing as a robust and coking‐resistant catalytic system for dry reforming of methane. Overcoming the problem of unavoidable bulk crystal growth from multiple sheets‐stack...
Hierarchically well‐developed porous graphene nanofibers comprising N‐doped graphitic C (NGC)‐coated cobalt oxide hollow nanospheres are introduced as anodes for high‐rate Li‐ion batteries. For this, three strategies, comprising the Kirkendall effect, metal–organic frameworks, and compositing with highly conductive C, are applied to the 1D architecture. In particular, NGC layers are coated on cobalt...
In article number 1901280, In Su Lee and co‐workers develop a synthetic strategy toward customizable nanospatial grouping of orthogonally reactive nanocatalysts within interconnected carbon‐cavities as a compartmentalized framework, employing aminated‐silica‐directed thermal solid‐state nanoconfined nanocrystals synthesis and endotemplating concomitant carbonization‐mediated interlocking. The utility...
Multifunctionalized porous catalytic nanoarchitectures are highly desirable for a variety of chemical transformations; however, selective installation of different catalysts with spatial and functional precision working synergistically and predictably, is highly challenging. Here, a synthetic strategy is developed toward the customizable combination of orthogonally reactive metal nanocrystals within...
This paper proposes a confined solid‐state conversion approach using layered metal‐hydroxides for the production of a colloidal suspension of porous 2D crystalline metal oxide layers with superior electrochemical H2O2 sensing performance. This study investigates the conversion chemistry of delaminated layers of gadolinium hydroxide (LGdH), [Gd2(OH)5]+, encapsulated in a silica nanoshell that provides...
In article number 1802174, In Su Lee and co‐workers describe a confined conversion approach with exfoliated gadolinium hydroxide layers at high temperatures within a silica nanoshell that produces a colloidal suspension of holey Gd2O3 nanosheets that feature a highly 2D‐anisotropic morphology with a few‐nanometer thickness and a unique in‐plane mesoporosity. The resultant suspension allows for the...
Large‐scale 2D single‐crystalline copper nanoplates (Cu NPLs) are synthesized by a simple hydrothermal method. The combination of a mild reductant, stabilizer, and shape modifier allows the dimensional control of the Cu nanocrystals from 1D nanowires (NWs) to 2D nanoplates. High‐resolution transmission electron microscopy (HR‐TEM) reveals that the prepared Cu NPLs have a single‐crystalline structure...
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