Selective Conversion of HMF to OBMF with Cerium-Modified Graphene Oxide Catalysts

<p class="zetMetni"><span lang="EN-US">This studyinvestigates the catalytic conversion of 5-hydroxymethylfurfural (HMF) into5,5-(Oxybis(methylene))-bis-2-furfural (OBMF) using graphene oxide (GO) andmetal-doped graphene oxide catalysts (GO-Ce, GO-Ce-Fe, GO-Ce-Ni). The catalystswere synthesized using a Tour's method and characterized through FTIR, XRD,SEM, and TEM, confirming effective Ce doping and cerium oxide nanoparticledispersion on GO. The GO-Ce catalyst achieved a maximum OBMF yield of 97% at140°C over 12 hours. GC-MS and NMR analyses validated the high conversionefficiency of OBMF. Comparative studies showed GO-Ce's superior selectivity andstability over other catalysts.</span><span lang="EN-GB"><o:p></o:p></span>