journal article·2026-01Open access

Synthesis of well-defined allophane nanospheres

Pierre Picot, Frédéric Gobeaux, Antoine Thill

Abstract

Well-defined allophane nanospheres, with internal and external diameters of 3.0 and 3.9 nm, respectively, were successfully synthesized and characterized by cryo-TEM, SAXS, and IR spectroscopy. In addition, we propose a refined structural framework, clarifying the coexistence of open and closed imogolite- local structures, which are commonly grouped together under the term allophane .
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Research context

OpenAlex topics: Clay minerals and soil interactions · Mesoporous Materials and Catalysis · Surface Chemistry and Catalysis

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