Themed issue on advances in solid state chemistry and its applications
Guest Editors Caroline Kirk, Finlay Morrison, Jan Skakle, Derek Sinclair and John Irvine introduce this Journal of Materials Chemistry A themed issue on advances in solid state chemistry and its applications, in celebration of Professor Tony West’s 70th birthday.
Defect chemistry and electrical properties of sodium bismuth titanate perovskite
We review the diversity of the electrical behaviour of NBT induced by various defect mechanisms, including A-site Na or Bi non-stoichiometry, isovalent-substitution, and acceptor- and donor-doping.
Identification and characterisation of high energy density P2-type Na2/3[Ni1/3−y/2Mn2/3−y/2Fey]O2 compounds for Na-ion batteries
The Nax[Ni(x−y)/2Mn(2−x−y)/2Fey]O2 composition space was explored, and two compositions were identified as P2 compounds that can deliver high energy densities.
Pressure-induced chemistry for the 2D to 3D transformation of zeolites
ADOR, an unconventional synthesis strategy based on a four-step mechanism: assembly, disassembly, organization, and reassembly, has opened new possibilities in zeolite chemistry.
Bubble-supported engineering of hierarchical CuCo2S4 hollow spheres for enhanced electrochemical performance
Hierarchical CuCo2S4 hollow spheres are constructed by continual aggregation and growth of CuCo2S4 nanocrystals on the surface of gas bubbles.
Gaudefroyite: a mineral with excellent magnetocaloric effect suitable for liquefying hydrogen
A natural mineral, gaudefroyite, displays excellent low temperature magnetocaloric properties that are suitable for liquefying hydrogen.
Cation, magnetic, and charge ordering in MnFe3O5
The high pressure material MnFe3O5 displays a rich variety of magnetically ordered states on cooling through three separate phase transitions.
Superexchange-mediated negative thermal expansion in Nd-doped BiFeO3
Bi0.7Nd0.3FeO3 is a Gz-type antiferromagnet (space group Pn′ma′); competition between geometric effects and magnetic superexchange results negative thermal expansion below 200 K.
Remarkable impact of low BiYbO3 doping levels on the local structure and phase transitions of BaTiO3
Bi3+ with a stereochemically active lone-pair of electrons induces severe lattice strain in BaTiO3 as revealed by a significant Raman shift of the mode associated with the O–Ti–O bonds.
Crystal structure and compositional effects on the electrical and electrochemical properties of GdBaCo2−xMnxO5+δ (0 ≤ x ≤ 2) oxides for use as air electrodes in solid oxide fuel cells
GdBaCo2−xMnxO5+δ is a new system of layered perovskites displaying better electrochemical properties when a layered-type ordering of Gd and Ba cations is adopted.
Interplay between humidity, temperature and electrical response of a conductivity sensor based on a La2LiNbO6 double perovskite
The electrical response to RH% of a new La2LiNbO6 double perovskite as a sensing material in a humidity sensor.
NASICON LiM2(PO4)3 electrolyte (M = Zr) and electrode (M = Ti) materials for all solid-state Li-ion batteries with high total conductivity and low interfacial resistance
All solid-state batteries based on NASICON-type LiM2(PO4)3 electrolyte phases are highly promising owing to their high ionic conductivities and chemical stabilities.
Optimisation of functional properties in lead-free BiFeO3–BaTiO3 ceramics through La3+ substitution strategy
The structure and key functional properties of a promising lead-free solid solution, BiFeO3–BaTiO3, have been optimised by controlling chemical homogeneity via La-substitution strategies and thermal treatment.
Local structure and conductivity behaviour in Bi7WO13.5
Total neutron scattering analysis reveals details of cation coordination and vacancy distribution in Bi7WO13.5.
Electric field effect on the microstructure and properties of Ba0.9Ca0.1Ti0.9Zr0.1O3 (BCTZ) lead-free ceramics
Systematic evaluation of the effect that electric field application has on the structure, microstructure and piezo-ferroelectric properties of barium titanate-based lead-free piezoelectric ceramics reveals a field-induced phase transition underlying its high sensibility.
Nano-scale hydroxyapatite compositions for the utilization of CO2 recovered using post-combustion carbon capture
A novel approach to carbon sequestering using hydroxyapatite to incorporate significant amounts of CO2 with potential product applications as fertiliser.
Phase-pure BiFeO3 produced by reaction flash-sintering of Bi2O3 and Fe2O3
Nanostructured, highly-insulating, single-phase BiFeO3 is obtained by applying a small DC voltage to a mixture of Bi2O3 and Fe2O3 at 625 °C in seconds.
Microstructure dependence of performance degradation for intermediate temperature solid oxide fuel cells based on the metallic catalyst infiltrated La- and Ca-doped SrTiO3 anode support
High peak power density and slow performance degradation for Ni–Fe infiltrated LSCTA− anode resulted from a favourable interaction between NiFe and the perovskite backbone due to the formation of a Fe-rich oxide interface layer.
Biotemplating: a sustainable synthetic methodology for Na-ion battery materials
Dextran biotemplating offers a novel, sustainable and fast reduced-temperature synthetic route for energy storage materials (e.g. P3-Na2/3Ni1/3Mn2/3O2) with fine control over particle size and morphology that offers a new route to optimizing electrochemical properties.
First transparent oxide ion conducting ceramics synthesized by full crystallization from glass
New transparent Ln1+xSr1−xGa3O7+δ (Eu/Gd/Tb) melilite ceramics, elaborated by full crystallization from glass, show anionic conductivity (>0.01 S cm−1 at 700 °C).
Crystal structure and surface characteristics of Sr-doped GdBaCo2O6−δ double perovskites: oxygen evolution reaction and conductivity
Upon Sr-doping in GdBa1−xSrxCo2O6−δ, a shift of the valence band maximum VBmax towards the Fermi energy EF was observed leading to better OER activity.
The crystal structure and electrical properties of the oxide ion conductor Ba3WNbO8.5
The crystal structure of the novel oxide ion conductor Ba3WNbO8.5.
Thermal evolution of structures and conductivity of Pr-substituted BaZr0.7Ce0.2Y0.1O3−δ: potential cathode components for protonic ceramic fuel cells
Pr doping in BZCY72 induces symmetry changes and enhances mixed-conductivity for electrochemical applications, with Pr concentration influencing the charge-compensation mechanism.
A structural study of Ruddlesden–Popper phases Sr3−xYx(Fe1.25Ni0.75)O7−δ with x ≤ 0.75 by neutron powder diffraction and EXAFS/XANES spectroscopy
Ruddlesden–Popper phases Sr3−xYx(Fe1.25Ni0.75)O7−δ with x ≤ 0.75 have been characterised by neutron powder diffraction and EXAFS/XANES spectroscopy.
Oxygen transport phenomena in (La,Sr)2(Ni,Fe)O4 materials
Oxygen conductivity of La1.5Sr0.5Ni1−yFeyO4+δ membranes.
About this collection
Professor Tony West was the founding Editor of Journal of Materials Chemistry. In celebration of Professor West’s 70th birthday, this issue honours his contributions to the field and includes those people who have worked with him over the course of his career.