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Warwick Team Uncovers Hidden Intermediate Materials, Including New BiVO4 Polymorph

Real-time tracking of heated single-source precursors exposes phases with distinct properties.

Overview

  • The peer-reviewed study, published April 30 in Nature Communications, identifies previously unknown in-between phases that appear as molecular precursors are heated.
  • The team reports a kinetically stabilized beta-BiVO4 with a larger band gap, the light energy needed to excite electrons, which changes how the material absorbs sunlight for solar-fuel chemistry.
  • Another intermediate showed high lithium storage capacity, pointing to possible use in next-generation battery materials.
  • By designing single-source precursors that bundle all required elements and monitoring changes with solid-state NMR, X-ray diffraction, and pair distribution function analysis, the researchers steered which structures formed.
  • The authors call the work an early proof of principle based on a small set of precursors and say broader screens, reproducibility checks, and device tests will be needed to gauge practical performance.