Materials chemistry articles within Communications Materials

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  • Article
    | Open Access

    The tetragonal tungsten bronzes are promising for high-temperature energy storage applications but the mechanisms for their broad dielectric responses are unclear. Here, a comprehensive experimental and theoretical study of Sr2NaNb5O15 explains its two large dielectric anomalies in terms of structural transitions.

    • Jeremiah P. Tidey
    • , Urmimala Dey
    •  & Mark S. Senn

  • Article
    | Open Access

    Structural transformations offer a route to control functional properties but it is difficult to design metal-organic frameworks with multiple and fast transformations. Here, a 2D metal-organic framework was designed with continuous structural transformations driven by light and used for optical modulation.

    • Yuliya A. Kenzhebayeva
    • , Nikita K. Kulachenkov
    •  & Valentin A. Milichko

  • Perspective
    | Open Access

    Biomedicinal applications of metal-organic frameworks have mainly focused on nanoscale drug delivery. This Perspective provides an overview of reproducibility issues faced when applying metal-organic framework in nanomedicine, specifically covering their preparation and in vitro analysis.

    • Ross S. Forgan

  • Article
    | Open Access

    Poly-nitrogen units are useful for next-generation high energy density materials but often have poor thermal stability. Here, cyclopentazolate anions are stabilized in a hydrogen-bonded organic framework through self assembly, displaying a decomposition temperature of 153 °C.

    • Yuangang Xu
    • , Jianxin Zhou
    •  & Ming Lu

  • Article
    | Open Access

    Materials with a chiral crystal structure are of great interest due to potentially non-trivial structure-property relations. Here, electron microscopy and crystallographic analysis, supported by quantum chemical calculations, shed light on the conversion of the crystal structure of CoSi accompanying a change in handedness.

    • Wilder Carrillo-Cabrera
    • , Paul Simon
    •  & Yuri Grin

  • Article
    | Open Access

    Bi-phasic O3/P2 sodium layered oxides are leading candidates for next-generation batteries but rational control of the O3/P2 ratio remains challenging. Here, the O3/P2 ratio is tuned by using the average ionic radius of the transition metal layer, leading to materials with different characteristics.

    • P. A. Maughan
    • , A. B. Naden
    •  & A. R. Armstrong

  • Article
    | Open Access

    Short-range chemical ordering has emerged as a key feature for controlling the properties of high-entropy alloys. Here, ab initio calculations reveal that two types of short-range ordering exist in Si–Ge–Sn medium-entropy alloys, suggesting that multiple types of ordering could exist in a single alloy.

    • Xiaochen Jin
    • , Shunda Chen
    •  & Tianshu Li

  • Article
    | Open Access

    Quadruple perovskites are characterized by competing long-range spin interactions that result in complex magnetic structures. Here, the authors synthesize and characterize the magnetic behaviour of CaCo3Ti4O12, suggesting that the observed magnetic structures arise from different ways to avoid frustration in underlying kagome lattices.

    • Midori Amano Patino
    • , Fabio Denis Romero
    •  & Yuichi Shimakawa

  • Article
    | Open Access

    Metal halide to perovskite phase conversion is a facile approach for synthesizing high-quality perovskite semiconductors for optoelectronic applications. Here, these reactions are investigated at the nanoscale via in-situ x-ray scattering, revealing links between reaction kinetics, structure and composition.

    • Neha Arora
    • , Alessandro Greco
    •  & M. Ibrahim Dar

  • Article
    | Open Access

    There is an ongoing drive for new additive manufacturing processes that produce complex parts. Here, cavity vat polymerisation is introduced, in which cavities are filled with a dual-curing resin that forms an elastomer/thermoset covalently bonded interface, creating hard-shell/soft-core parts.

    • Joel Bachmann
    • , Philip Obst
    •  & Olaf Hinrichsen

  • Article
    | Open Access

    The mechanical properties of out-of-equilibrium, chemically fueled supramolecular materials are largely unexplored. Here, the effect of applied load and the concentration of reaction side products on the viscoelastic properties of chemically fueled supramolecular hydrogels is investigated.

    • Martin Kretschmer
    • , Benjamin Winkeljann
    •  & Oliver Lieleg

  • Article
    | Open Access

    Understanding adhesion mechanisms for polymer composites is challenging due to the bonded interface being buried. Here, soft X-rays are used to probe the chemical and physical nature of the interface, revealing multiscale factors that influence the adhesion mechanism and bond strength.

    • Hiroyuki Yamane
    • , Masaki Oura
    •  & Takaki Hatsui

  • Article
    | Open Access

    Recently, Nb-doping of topological insulator Bi2Se3 has attracted much attention as a way to pursue topological superconductivity. Here, in contrast to previous reports, superconductivity in NbxBi2Se3 is found to arise from the misfit phase (BiSe)1.10NbSe2 and not from Nb intercalation into Bi2Se3.

    • Machteld E. Kamminga
    • , Maria Batuk
    •  & Simon J. Clarke

  • Article
    | Open Access

    The applicability of protein fibrils as functional biomaterials is limited due to low scalability of production process, slow kinetics, and requirement of expensive purified proteins. Here, instantaneous production of protein fibrils from egg white proteome using cholinium tosylate as a fibrillation agent is shown, with the obtained fibrils displaying enhanced mechanical stiffness and cytocompatibility.

    • Pankaj Bharmoria
    • , Dibyendu Mondal
    •  & Mara G. Freire

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