Cristobalite with ordered interstitial dual‐sized mesopores was synthesized through the crystallization of silica colloidal crystals composed of monodispersed amorphous silica nanoparticles. An aqueous solution containing both a flux (Na₂O) and a carbon precursor (an aqueous low‐molecular weight phenolic resin) was infiltrated into the interstices of silica colloidal crystals. The organic fraction in the nanocomposite was further polymerized and subsequently carbonized in an Ar flow at 750 °C to reinforce the colloidal crystal structure. The thermal treatment resulted in the crystallization of the colloidal crystals into cristobalite while retaining the porous structure. The cristobalite‐carbon nanocomposite was calcined in air to remove the carbon and create interstitial ordered mesopores in the cristobalite. The surfaces of crystalline mesoporous silica are quite different from those of various ordered mesoporous silica with amorphous frameworks; thus, the present findings will be useful for a precise understanding and control of the interfaces between the mesopores and silica networks.

中文翻译：

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二氧化硅胶体晶体的结晶合成含方晶介孔的方石英

通过结晶由单分散无定形二氧化硅纳米粒子组成的硅胶晶体，可以合成具有规整的间隙双晶介孔的方石英。同时含有助焊剂（Na ₂O）和碳前体（水性低分子量酚醛树脂）渗透到二氧化硅胶体晶体的空隙中。纳米复合物中的有机部分进一步聚合，然后在750°C的Ar流中碳化，以增强胶体晶体结构。热处理导致胶体晶体结晶成方石英，同时保持多孔结构。在空气中煅烧方石英-碳纳米复合材料，以除去碳并在方石英中生成间隙有序的介孔。结晶介孔二氧化硅的表面与具有无定形骨架的各种有序介孔二氧化硅的表面有很大不同。从而，