Immobilized Copper-Substituted Keggin POM on Graphene Oxide for Highly Selective Heterogeneous Catalysis of Starch Hydrolysis
Langson Chilufya, Bright Chilikwazi, Beraat Umur Kaya, Mehtap Emirdag-Eanes · 2026
Read Immobilized Copper-Substituted Keggin POM on Graphene Oxide for Highly Selective Heterogeneous Catalysis of Starch Hydrolysis by Langson Chilufya, Bright Chilikwazi, Beraat Umur Kaya, Mehtap Emirdag-Eanes (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13280877.txt.
Description
Langson Chilufya and colleagues published a 2026 catalysis study anchoring a copper-bearing polyoxometalate cluster onto graphene oxide to break starch down into glucose. Polyoxometalates are clusters that combine acid and redox activity, attractive for converting biomass, but they dissolve in water and are hard to recover. Fixing one onto graphene oxide sheets by ball milling produced a reusable catalyst. The team optimized the heating conditions for starch hydrolysis and modeled the chemistry with density functional theory.
Under the best conditions the hybrid converted 92 percent of the starch and delivered an 82 percent glucose yield. It reached 95 percent selectivity for glucose over side products, while surviving over five reuse cycles. The simulations attribute the performance to cooperation: the cluster and the graphene oxide shuttle protons and keep the starch chains accessible to the active sites. The authors offer the design as a template for hybrid catalysts for sustainable biomass conversion.
Catalog record
| CREATOR | Langson Chilufya, Bright Chilikwazi, Beraat Umur Kaya, Mehtap Emirdag-Eanes |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 55 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |