Multimodal Zr-Silicalite-1 zeolite nanocrystal aggregates with interconnected hierarchically micro-meso-macroporous architecture and enhanced mass transport property

Reactive-template fabrication of porous NiO nanowires for electrocatalytic O2evolution reaction

“…It can be revealed from surface area and pore size analysis that the obtained textural features are quite good for enhanced mass transport property. 26 The plate like nickel oxide nanoparticles (NiO NPs) with size distributions of 50-100 nm were also synthesized for comparative electrocatalytic evaluation with the porous NiO NWs. The XRD and FE-SEM proles of NiO NPs are given in NiOOH) 27 during the potential scan from 0 to 700 mV while the bare FTO exhibits almost a straight line, conforming the functionalization of the NiO NWs in modied electrode.…”

Hierarchically porous materials: synthesis strategies and structure design

“…49F). 719,721 SEM and XRD studies reveal that MMM-Beta and MMM-TS-1 architectures with meso-macroporous structure can be successfully synthesized using the glycerol system, in a manner that is similar to the case of hierarchically micro-meso-macroporous aluminosilicate with zeolite ZSM-5 architecture. MMM-Beta shows a type-I isotherm (Fig.…”

Hierarchical Zeolite Single-Crystal Reactor for Excellent Catalytic Efficiency

“…30 Pé rez-Ramírez et al contributed greatly to obtaining insight into the interconnectivity of the hierarchical pores, 31 including gas adsorption studies, 32 mercury porosimetry, 33 gravimetric uptake of bulking alkanes, 34 infrared spectroscopy of substituted alkylpyridines with different size, 35 and positron annihilation lifetime spectroscopy. 36,37 In the same way, advanced imaging techniques based on electron tomography and rotation electron diffraction, 21,28 continuous-flow variable-temperature hyperpolarized 129 Xe nuclear magnetic resonance (NMR), 38,39 and pulsed field gradient (PFG) NMR 40,41 have also been proved to be powerful tools for assessing the pore interconnectivity in hierarchically structured zeolites.…”