Composite coatings synthesized by different morphologies of CeO2 in supergravity devices are highly active in hydrogen evolution reactions (HERs). By adding CeO2 nanoflakes (CeO2 Nf) or CeO2 nanorods (CeO2 Nr), the change in the microstructures of composites becomes quite distinct. Moreover, most Ni–S alloys are attached on the surface of CeO2 and roughen it compare with pure CeO2. In order to ...

Streams are potential receiving compartments for engineered nanoparticles (NP). In streams, NP may remain dispersed or settle to the benthic compartment. Both dispersed and settling NP can accumulate in benthic biofilms called periphyton that are essential to stream ecosystems. Periphytic organisms excrete extracellular polymeric substances (EPS) that interact with any material reaching the bio...

The development of novel cost-efficient, high-performing catalysts for CO2 methanation that are active at low temperatures can be optimized through the understanding reaction mechanism on different materials. A series Ni-based supported CeO2 and carbon/CeO2 composites was investigated, showing Ni nanoparticles a composite with 50:50 wt ratio pure have excellent low-temperature activity achieve ...

Layered crystal structures tend to form flat platelet-like crystallites, and nanofibers having such a structure exhibit strip-like morphology. Crystallographic plane forming the dominant surface of can be used for modification with catalytically active nanoparticles capable anchoring surface. In this study, polyvinylidene fluoride (PVDF) exhibiting morphology longitudinal folding were prepared ...

The rational design and fabrication of highly-active cost-efficient catalytic materials constitutes the main research pillar in catalysis field. In this context, fine-tuning size shape at nanometer scale can exert an intense impact not only on inherent reactivity catalyst’s counterparts but also their interfacial interactions; it opening up new horizons for development highly active robust mate...

High surface area mixed oxide 8.7% NiO-CeO2 nanoparticles (122 m2/g; 6–7 nm) were prepared using a reversed microemulsion method, and tested for dry methane reforming (DRM). The catalytic activity of these remains stable under the severe conditions DRM (700 °C), they show better carbon resistance than conventional catalysts without control size. selectivity reference catalyst are similar, but r...

Recently, cerium oxide (CeO2) nanoparticles have been widely used in engineering andmedical sciences due to the diversity of their applications. Fe-Ce nanoparticles were synthesized bysimple co-precipitation method via iron nitrate (Fe(NO3)3.9H2O) and cerium nitrate (Ce(NO3)3.6H2O) asprecursor in the presence of cetyltrimethylammonium bromide (CTAB) surfactant. The samples wer...

A nanocomposite comprising cerium oxide nanoparticles (CeO2 NPs) and polypyrrole (PPy) was fabricated onto a microelectrode for cholesterol sensing application. The oxidase (ChOx) immobilized on the CeO2 NPs/PPy/electrode by physical adsorption route. structure morphology of NPs/PPy were characterized X-ray diffraction, field emission scanning electron microscopy, energy dispersive spectroscopy...

This work investigated the effect of Pt nanoparticles embedded into CeO2 ([email protected]2) and CeZrO2 on carbon removal mechanism for dry reforming methane, in comparison to impregnated Pt/CeO2. Morphological structural characterization by TEM Raman spectroscopy showed that sintering is suppressed both structures doping with Zr led solid solution formation. A combination TPR, oxygen isotopic...