Showing papers in "Materials Today Physics in 2021"

TL;DR: A comprehensive overview of Ni-based layered double hydroxides (LDHs) for oxygen evolution reaction (OER) is provided in this paper, where fabrication strategies and in situ characterization are discussed.

TL;DR: In this article, a general overview of the thermoelectric principles and conductive polymer characteristics is provided, followed by the recent progress in their application in flexible and wearable devices.

TL;DR: In this article, the authors focus on the discussions of synaptic devices based neuromorphic computing applications in artificial intelligence and discuss future applications in neuromorphic vision, sensor, human machine intelligence, topological and quantum computing.

TL;DR: In this paper, a highly porous hydrogen-evolving electrocatalyst, which is established by in-situ formation of Co2P/Ni2P nanohybrids with a nanometer size on a conductive CoNi foam, presents very outstanding pH-universal catalytic activities for hydrogen evolution in a wide pH range demanding extremely low overpotentials of 65.7 and 51mV.

TL;DR: In this article, the starch-based porous carbon foam (PCF) composites are fabricated via vacuum assisted impregnation of Ti3C2Tx MXene followed by freeze drying.

TL;DR: In this paper, the authors reviewed the classification, preparation methods, research progresses and thermal conduction mechanisms of intrinsically thermally conductive liquid crystal epoxy resins and their composites.

TL;DR: In this paper, a hierarchical molecular design strategy was applied to synthesize a promising NLO material Ag2HgI4 by a simple solution method, which shows the strongest second harmonic generation (SHG) response in inorganic halides (4 × AgGaS2 (AGS)) and wide transparency range.

TL;DR: In this article, the authors provide a broad picture of physically driven optimization strategies for thermoelectric materials, with emphasis on electronic transport aspect of inorganic materials, and discuss and analyzes various newly coined metrics such as quality factors, electronics quality factor, electronic fitness function, weighted mobility, and Fermi surface complexity factor.

TL;DR: In this article, a combination theoretical and experimental investigation of the Sr2GdNbO6 compound with a typical orthorhombic double perovskite (DP) type structure in terms of structural, magnetic and MCE properties have been reported.

TL;DR: In this paper, the authors focus on recent advances in anti-counterfeiting technology that exploits the remarkable tunability of upconversion luminescence to design optical codes with high-level security.

TL;DR: In this paper, NiCo2S4@C/Porous Carbon (PC) composite material, composed of metal sulfide spinel, porous carbon composite material and porous carbon material, was prepared.

TL;DR: In this paper, an innovative concept of density of thermal conduction networks (DTCN) was proposed to explain the difference among different graphite/PW composites, and the graphite and paraffin wax (PW) spheres with different sizes were prepared by instantaneous cooling granulation technology.

TL;DR: In this paper, a sputtered TiB2 film was used to enable artificial N2 reduction electrocatalysis in 0.1 M HCl and achieved a high Faradaic efficiency of 11.37% at 0.30 V vs. reversible hydrogen electrode.

TL;DR: In this paper, the authors demonstrated the ultra-high rate up to 100nm/s in the growth of dual-phase cuprate superconducting film (EuBa2Cu3O7-BaHfO3).

TL;DR: In this paper, the authors combined theoretical and experimental studies for the design of novel Pt-based metallic electrocatalysts for the oxygen reduction reaction (ORR) are revised and analyzed in detail.

TL;DR: In this article, the authors proposed a pn-type photodetector with high sensitivity, stable and energy saving and has wide practical application prospect in solar-blind detection systems.

TL;DR: In this paper, 2D WSe2 nanoinclusions were introduced in n-type Pb/I co-doped SnSe matrix to form p-n junctions, which act as energy barriers and effective phonon scattering sources.

TL;DR: In this paper, a cost-effective n-type Mg3Bi2-based compound with a peak zT of 1.24 was constructed and its energy conversion efficiency was evaluated.

TL;DR: In this paper, the authors focus on Gd-doping for increasing the electron concentration at a high mobility and on Cu2Te-alloying for creating dense in-grain dislocations for scattering phonons.

TL;DR: In this article, a family of rare earth-based intermetallics compounds, REMn2Ge2 (RE=Ce, Pr, and Nd) magnets, are demonstrated to be able to host skyrmionic bubbles in a wide temperature range of 220-320 K.

TL;DR: In this paper, the authors summarize the recent progress on these points and conclude with perspectives on challenges and future directions of electrochemical ammonia synthesis, including the development of catalysts, innovations on the configurations of electrolytic cells, strategies to improve the selectivity, and verification of ammonia synthesis results.

TL;DR: In this article, the authors discuss the superior structural characteristics of bismuth oxyhalides, comprehensively summarize the efficient strategies including metal/non-metal incorporation, modulating strain, constructing vacancies, constructing heterostructures and constructing moire superlattice to improve the photocatalytic activities, and then introduce current progress on Bismuth-oxyhalides-templated electrocatalysts for CO2 reduction.

TL;DR: In this paper, an efficient ternary catalyst system of Pt-Cu-Mo2C catalyst is compositionally optimized and mechanically probed for the oxidation of methanol and ethanol fuels.

TL;DR: In this article, the luminescence of carbon dots (CDs) that are passivated with polyethylene glycol (PEG) is explored for the first time, and the detection limit is approximately 7.0 nM.

TL;DR: A stretchable wideband rectenna integrated with various functional sensing modules and its demonstration with enhanced effective rectenna efficiency over the state-of-the-art by 10-100 times illustrates a system-level example of this technology.

TL;DR: In this paper, an Fe2+driven, one-step, and spontaneous fabrication method for a seawater-oxygen-evolution-active NiFe layered double hydroxide (LDH) at room temperature was developed, and the NiFe LDH was found to exhibit very high activity and stability toward the oxygen evolution reaction (OER) in an alkaline natural seawater electrolyte, delivering current densities of 100 and 500 mA/cm2 at low overpotentials of 247 and 296mV, respectively, and with no significant degradation observed over long-

TL;DR: In this paper, a paint-format microparticle-polymer composite with a low fabrication cost, simple structure, and high radiative cooling performance was proposed for indoor raditaive cooling.

TL;DR: In this paper, a tribo-thermoelectric and tribovoltaic coupling effect is reported by rubbing a metal on a semiconductor, where the friction energy excites electron-hole pairs at the interface to generate a DC current under the built-in electric field.

TL;DR: In this article, the authors provided an in-depth understanding on active sites engineering of the Cu-based electrocatalysts and mass transfer ability of the cell configuration, which is a promising approach to reduce current fossil fuel-based production as well as to reduce anthropogenic carbon emission.

TL;DR: In this article, the fundamental properties of SnTe are first outlined, and the optimization strategies are subsequently summarized for both electronic and phonon transport, and future possible directions to further enhance SnTe performance are put forward at the end of this article.