130173 20241125101132.0 doi 10.1016/j.jallcom.2023.172535 sideral 135212 ART-2023-135212 eng Zhu, Kunmeng Ultra-high specific surface area spherical FePOx/SiO2 aerogel with excellent mechanical properties for the highly selective direct oxidation of CH4 to HCHO 2023 Access copy available to the general public Unrestricted Silica aerogels, characterized by their high porosity and substantial specific surface area, are suitable for applications as catalysts or catalyst supports. The simultaneous attainment of a substantial specific surface area and robust mechanical properties in aerogel materials remains a formidable challenge in material synthesis. Spherical FePOx/SiO2 aerogel materials were synthesized employing a combination of heating reflux, the sol-gel technique, and supercritical ethanol drying. These composites demonstrate an exceptional specific surface area, uniformly dispersed active components, shape controllability, and superior mechanical strength. A noteworthy enhancement in both specific surface area (1175 m2/g) and compressive modulus (7.56 MPa) surpasses many findings reported in extant literature. Under conditions of a reaction temperature at 650°C and a flow rate of 97.5 mL/min, the HCHO selectivity and yield for 4 wt.% FePOx/SiO2 aerogel were 18.3 and 4.2 times, respectively, higher than those of 4 wt.% FePOx/SiO2 particles. These composites manifest significant selectivity towards the direct catalytic oxidation of CH4 to HCHO. info:eu-repo/grantAgreement/ES/MICINN/PID2019-106196RB-I00 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 5.8 2023 MATERIALS SCIENCE, MULTIDISCIPLINARY 109 / 439 = 0.248 2023 Q1 T1 METALLURGY & METALLURGICAL ENGINEERING 8 / 90 = 0.089 2023 Q1 T1 CHEMISTRY, PHYSICAL 51 / 178 = 0.287 2023 Q2 T1 1.103 2023 Materials Chemistry 2023 Q1 Metals and Alloys 2023 Q1 Mechanics of Materials 2023 Q1 Mechanical Engineering 2023 Q1 11.1 2023 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Gao, Fuwei Zhao, Zhiyang Ren, Jian Lasobras, Javier (orcid)0000-0002-7488-6196 Shen, Xiaodong Cui, Sheng Menéndez, Miguel Universidad de Zaragoza (orcid)0000-0002-2494-102X 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química (2023), 172535 [24 pp.] J. alloys compd. JOURNAL OF ALLOYS AND COMPOUNDS 0925-8388 2010739 http://zaguan.unizar.es/record/130173/files/texto_completo.pdf Postprint info:eu-repo/date/embargoEnd/2024-10-16 1406570 http://zaguan.unizar.es/record/130173/files/texto_completo.jpg?subformat=icon icon Postprint info:eu-repo/date/embargoEnd/2024-10-16 oai:zaguan.unizar.es:130173 articulos driver 2024-11-22-11:59:12 ARTICLE