Materials Literature
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A series of boron-doped (B-doped) catalysts with dissimilar mass ratios of boric acid and activated carbon (AC) were prepared by an impregnation method for acetylene acetoxylation. The introduction of a number of boron atoms activates the stable π electrons in AC, which not only enhances the electron transfer between…
Our previous studies demonstrated that rare-earth oxycarbonates Ln 2 O 2 CO 3 (Ln = La, Nd, and Sm) and rare-earth oxides Ln 2 O 3 (Ln = Nd, Sm, Gd, Dy, Er, and Yb) are sensitive to CO 2 and that hexagonal La 2 O 2 CO 3 is the best among them in terms of sensitivity, stability, and selectivity. In this study, we have…
Abstract Chemical-looping combustion (CLC) is a unique method that is developed for carbon capture and storage (CCS) to mitigate the climate change. In CLC, an oxygen carrier is used to convert the fuel and the produced CO2 is inherently separated from air components, which makes it suitable for CCS. The CLC of biomas…
Abstract Extracellular matrix (ECM)-based biomaterials are promising candidates in cartilage tissue engineering by simulating the native microenvironment to regulate the chondrogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) without exogenous growth factors. The biological properties of ECM scaffol…
Carbon nanofiber (CNF) nanocatalyst hybrids hold great promise in fields such as energy storage, synthetic chemistry, and sensors. Current strategies to generate such hybrids are laborious and utterly incompatible with miniaturization and large-scale production. Instead, this work demonstrates that Ni nanoparticles em…
A novel resonator-based metasurface is devised to control reflected underwater waves. Each metasurface unit is constructed with an aluminum plate attached to a lead mass. By tailoring the thickness of the plate, full 2π phase shift of the reflected wave can be achieved. Examples of redirection, focusing, and direction…
Graphene oxide (GO) is a bidimensional novel material that exhibits high biocompatibility and angiogenic properties, mostly related to the intracellular formation of reactive oxygen species (ROS). In this work, we set up an experimental methodology for the fabrication of GO@peptide hybrids by the immobilization, via i…
While solid and hollow microsphere composites have received significant attention as solar reflectors or selective emitters, the driving mechanisms for their optical properties remain relatively unclear. Here, we study the solar reflectivity in the 0.4–2.4 μm wavelength range of solid and hollow microspheres with the…
In this article, we report the results of experimental studies on the impact of ball burnishing parameters on the roughness, microstructure and microhardness of the surface layer of laser-cut C45 steel parts. We also analysed the distribution of residual stresses generated in the surface layer of these parts. Laser-cu…
Abstract In fuel cell catalyst layers (CLs), the ionomer plays roles as a binder and proton conductor. The ionomer requires hydration for enabling proton transport; however, the accumulation of excess liquid water in CL pores hinders oxygen diffusion. Therefore, a key to the improvement of CLs is understanding the dis…
The simultaneous realization of confined growth and doping of transition metals within carbon hosts promises to deliver unusual bifunctional catalytic activity but still remains challenging due to the difficulty in achieving synchronous nucleation and diffusion of metallic ions in a single synthesis step. Herein, we p…
It is imperative to improve the quality of light absorber and reduce the charge‐carrier recombination for efficient perovskite solar cells (PSCs). Herein, a synergistic regulation strategy that combines the tailoring of crystallinity and construction of multilayer cascade charge transport layers (CTLs) for inverted Cs…
Corals are the ecosystem engineers of coral reefs, one of the most biodiverse marine ecosystems. The ability of corals to form reefs depends on the precipitation of calcium carbonate (CaCO3) under biological control. However, several mechanisms underlying coral biomineralization remain elusive, for example, whether co…
General chemistry knowledge will intuitively predict that a stronger reducing agent will result in a faster reduction reaction. The present work, however, shows the counterintuitive role of reducing agents in a model reaction of gold nanoparticle (AuNP)-catalyzed reduction of 4-nitrophenol (4-NP) by sodium borohydride…
Implementation of meta -positioning in intermediate tetrafunctional benzoxazines instead of para -positioning was done in an attempt to obtain low curing and weight loss-free benzoxazine monomers before/during ring-opening polymerization. Three different meta -positioned tetrafunctional benzoxazine monomers ( m BZ4s)…
Phase inversion composition methods and phase inversion temperature methods are the common methods for nanoemulsion formation. The mechanisms governing both PIC and PIT are the same: composition or temperature can trigger a change in the surfactant spontaneous curvature during the emulsification process. It is anticip…
We develop a self-immolative rotaxane sensor for fluoride sensing based on host-guest interactions between pillar[5]arene and fluoride-promoted cleavage of Si-O bond. Because of the selective and fast reaction between silane and fluoride, the rotaxane sensor shows anion selectivity and rapid response. The self-immolat…
High Resolution Image Download MS PowerPoint Slide NiOOH and its doped species are widely used as electrocatalysts for the oxygen evolution reaction (OER) in alkaline media. In this work, we carried out comprehensive density functional theory (DFT) simulations of Ni-based electrocatalysts for the OER by applying suita…
Growth of single-crystalline GaN on polycrystalline diamond is reported for the first time. The structure was achieved using a combined process including selective diamond growth on GaN/Si wafers using hot filament chemical vapor deposition (CVD) and epitaxial lateral overgrowth of GaN on the window region between the…
The interaction energy of base–acid plays a key role in acid retention of phosphoric acid (PA)-doped polymer electrolytes under fuel cell operating conditions. Here, we investigate the energetics of proton-accepting and hydroxide-donating organic bases using density functional theory calculations. Because of their wea…