2019
DOI: 10.1002/adfm.201903264
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Confined Transformation of UiO‐66 Nanocrystals to Yttria‐Stabilized Zirconia with Hierarchical Pore Structures for Catalytic Applications

Abstract: Solid acids as a substitution for hazardous liquid acids (e.g., HF and H 2 SO 4 ) can promote many important reactions in the industry, such as carbon cracking, to proceed in a more sustainable way. Starting from a zirconium-based metal-organic framework (UiO-66 nanocrystals), herein a transformative method is reported to prepare micro/mesoporous yttria-stabilized zirconia (YSZ) encapsulated inside a mesoporous silica shell. It is then further demonstrated that the resultant reactor-like catalysts can be used … Show more

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Cited by 24 publications
(6 citation statements)
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“…5b), further revealing the copper is localized in the MoS 2 phase. This phenomenon can potentially arise from the contraction of the metal solution from the external region of the hollow mesoporous silica shell towards the interior during the drying process following impregnation, which aligns with our previously reported findings 41 . In addition, the disparity observed between mSiO 2 and MoS 2 can be attributed to the stronger surface affinity of unsaturated sulfur in MoS 2 towards Cu 2+42 .…”
Section: Synthesis and Characterizations Of Catalystssupporting
confidence: 92%
“…5b), further revealing the copper is localized in the MoS 2 phase. This phenomenon can potentially arise from the contraction of the metal solution from the external region of the hollow mesoporous silica shell towards the interior during the drying process following impregnation, which aligns with our previously reported findings 41 . In addition, the disparity observed between mSiO 2 and MoS 2 can be attributed to the stronger surface affinity of unsaturated sulfur in MoS 2 towards Cu 2+42 .…”
Section: Synthesis and Characterizations Of Catalystssupporting
confidence: 92%
“…Non-precious metal catalysts required extremely harsh reaction conditions 3,10,12,61,62 (Table 8, entries 1–5) with the highest pressure of 5 MPa and high temperatures of 170 °C 61 (Table 8, entry 1), while the lowest reported pressure was 0.1 MPa (Table 8, entry 7). 63 All TOF values were smaller than those in this work. Compared with Pt, the noble metal Pd (Table 8, entry 1) not only required high pressure but also long reaction times (30 h).…”
Section: Resultscontrasting
confidence: 69%
“…In the search for a membrane material to meet the above purpose, chemically inert and thermally stable inorganic materials seem to be suitable candidates. In particular, silica particles with a core–shell structure have been studied extensively in diverse fields such as catalysis, , chemical sensing, and controlled drug delivery, , due to their good chemical and thermal stability, high optical transparency in visible and near-IR region, and good biocompatibility. The most widely used synthetic method to prepare core–shell silica particles on a large scale is the classical Stöber method where silica shell is formed by the complete hydrolysis of tetraethyl orthosilicate (TEOS) and subsequent condensation of the as-formed silicic acid .…”
Section: Introductionmentioning
confidence: 99%