Materials Literature
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We review the thermal properties of graphene, few-layer graphene and graphene nanoribbons, and discuss practical applications of graphene in thermal management and energy storage. The first part of the review describes the state-of-the-art in the graphene thermal field focusing on recently reported experimental and th…
Multilayer graphene is an exceptional anisotropic material due to its layered structure composed of two-dimensional carbon lattices. Although the intrinsic mechanical properties of graphene have been investigated at quasi-static conditions, its behavior under extreme dynamic conditions has not yet been studied. We rep…
We report that the addition of alkali ions (sodium or potassium) to gold on KLTL-zeolite and mesoporous MCM-41 silica stabilizes mononuclear gold in Au-O(OH)x-(Na or K) ensembles. This single-site gold species is active for the low-temperature (<200°C) water-gas shift (WGS) reaction. Unexpectedly, gold is thus similar…
In this review, we survey the research progress in catalytic hydrogen generation from, and the regeneration of, diverse liquid-phase chemical hydrogen storage materials, including both organic and inorganic chemical hydrides.
Superhydrophobic and superoleophobic surfaces have so far been made by roughening a hydrophobic material. However, no surfaces were able to repel extremely-low-energy liquids such as fluorinated solvents, which completely wet even the most hydrophobic material. We show how roughness alone, if made of a specific doubly…
The inhalation of zinc oxide engineered nanomaterials (ENMs) has been linked to cardiorespiratory dysfunction in mammalian models but the effects of aquatic ENM exposure on fish have not been fully investigated. Nano-zinc oxide (nZnO) is widely used in consumer products such as sunscreens and can make its way into aqu…
A series of [Mn(Ln)Cl] complexes 1–4 are obtained and shown to be effective catalysts in epoxide and anhydride ring-opening copolymerizations.
An ideal scaffold for bone tissue engineering should have interconnected porous structure, good biocompatibility, and mechanical properties well-matched with natural bones. Collagen is the key component in the extracellular matrix (ECM) of natural bones, and plays an important role in bone regeneration. The biological…
Chitosan is a desirable material for several reasons, including its biocompatibility, biodegradability, non-toxicity, and excellent absorption. Rapid progress in material science has resulted in the development and widespread use of chitosan in the textile industry primarily because it is polycationic and can inhibit…
Abstract A molybdenum L‐edge X‐ray absorption spectroscopy (XAS) study is presented for native and oxidized MoFe protein of nitrogenase as well as Mo‐Fe model compounds. Recently collected data on MoFe protein (in oxidized and reduced forms) is compared to previously published Mo XAS data on the isolated FeMo cofactor…
TeO2-nanostructured sensors are seldom reported compared to other metal oxide semiconductor materials such as ZnO, In2O3, TiO2, Ga2O3, etc. TeO2/CuO core-shell nanorods were fabricated by thermal evaporation of Te powder followed by sputter deposition of CuO. Scanning electron microscopy and X-ray diffraction showed t…
The purpose of this review is to gather the current background in materials development and provide the reader with an accurate image of today’s knowledge regarding the stability of dye-sensitized solar cells. This contribution highlights the literature from the 1970s to the present day on nanostructured TiO2, dye, Pt…
This perspective proposes principles to identify nanohybrids with novel properties relevant to nano EHS research, and discusses specific challenges for EHS research on these materials.
Sodium-ion batteries have attracted considerable interest as an alternative to lithium-ion batteries for electric storage applications because of the low cost and natural abundance of sodium resources. The materials with an open framework are highly desired for Na-ion insertion/extraction. Here we report on the first…
We report high-quality GaN crystals grown directly on graphene layers without a buffer layer by metal–organic chemical vapour deposition.
This paper presents the control system design for a piezoelectric actuator (PEA) for a high-speed trajectory scanning application. First nonlinear hysteresis is compensated for by using the Maxwell resistive capacitor model. Then the linear dynamics of the hysteresis-compensated piezoelectric actuator are identified.…
Mesoporous γ-Al 2 O 3 with high surface area (159 m 2 /g) is prepared via a precipitation method. The as-synthesized Al 2 O 3 exhibits optical absorption ability in the ultraviolet region and is used as the active component to be combined with g-C 3 N 4 to form effective heterostructured photocatalysts. This heterojun…
The present work is a short review of our recent studies on PhotoFuelCells, that is, photoelectrochemical cells which consume a fuel to produce electricity or hydrogen, and presents some unpublished data concerning both electricity and hydrogen production. PhotoFuelCells have been constructed using nanoparticulate tit…
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTNew Donor–Donor Type Copolymers with Rigid and Coplanar Structures for High-Mobility Organic Field-Effect TransistorsSoo-Young Jang†, In-Bok Kim‡, Jihong Kim†, Dongyoon Khim†, Eunhwan Jung†, Boseok Kang∥, Bogyu Lim†, Yeong-A Kim†, Yun Hee Jang†, Kilwon Cho∥, and Dong-Y…
A mechanistic investigation of the efficient cleavage of C–O bond of diphenyl ether by hydrogenolysis and hydrolysis was attempted via theoretical calculations in association with experimental analysis.