The marriage of catalyst nanoparticles and mesoporous supports brings exciting new opportunities in the field of catalysis, which provides the ability to create advanced nanoporous catalysts for a wide range of catalytic processes. It has been found that not only the features of mesoporous supports, such as, surface areas, mesostructures, and pore sizes, are critical for the catalytic performances, but also the unique properties of catalyst nanoparticles, including dispersion, particle size, and loading amount, play critical roles in determining catalytic performance. Those aspects have been discussed partly in previous reviews, but a comprehensive overview on the basic design principles and synthetic methods for the marriage of catalyst nanoparticles and mesoporous supports is still lacking. In this review, the recent progresses in the fabrication of advanced catalysts by incorporation of catalyst nanoparticles into mesoporous supports are summarized. First, the synthetic strategies for the controllable synthesis are reviewed. At the same time, the corresponding chemical‐/physically properties of the resultant supported mesoporous catalysts are highlighted. After that, the catalytic performances of the resultant mesoporous catalysts in the thermal catalysis, photocatalysis, and electrocatalysis are discussed. Moreover, the research challenges and perspectives in this field are assessed.
High-efficiency
adsorbents are essential for ultradeep desulfurization
through selective adsorption, which features low energy consumption
without causing secondary pollution. Aluminum oxide is always added
as a binder to form physically bound pellets, which weakens the adsorptive
desulfurization performance. In this work, a novel micro–mesoporous
binderless ZSM-5 (BL-ZSM-5) was successfully prepared through in situ crystallization, which could efficiently remove
thiophene from model fuel. Desulfurization ability was investigated
by static and fixed bed adsorption. The breakthrough adsorption capacity
of thiophene on BL-ZSM-5 reaches 0.38 mg/g, which is twice as high
as that of ZSM-5 with alumina binders (Al-ZSM-5). The improvement
is attributed to the conversion of alumina into molecular sieves,
which could increase the adsorption sites and provide appropriate
mesoporous channels for thiophene transfer. The thermal stability
of BL-ZSM-5 is superior to that of Al-ZSM-5. The adsorption performance
of BL-ZSM-5 is maintained well after 6 cycles of regeneration. The
results demonstrate that the attractive prospect of BL-ZSM-5 in highly
efficient desulfurization of transport fuels through selective adsorption.
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