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Preparation method of uranium dioxide-carbon multiphase porous material
The invention relates to a preparation method of a uranium dioxide-carbon multiphase porous material. The method comprises the following steps: 1) preparing resorcinol-formaldehyde sol; 2) sealing and storing the resorcinol-formaldehyde sol at a constant temperature, and drying the resorcinol-formaldehyde sol in air to obtain resorcinol-formaldehyde aerogel; 3) performing high-temperature treatment on the resorcinol-formaldehyde aerogel in an argon atmosphere to obtain a porous carbon material; 4) preparing a uranium oxide precursor solution; 5) dipping the porous carbon material in the uranium oxide precursor solution, then drying in the air, and circulating for multiple times to obtain a porous material blank; and 6) performing high-temperature treatment on the porous material blank in a low-pressure environment to obtain the uranium dioxide-carbon multiphase porous material. The preparation process is simple, and expensive equipment is not needed. The uranium dioxide-carbon multiphase porous material is high in phase purity and good in structural stability, the density, the specific surface area, the conductivity and the like of the material can be regulated and controlled within a large range according to design requirements, and the application of the material in the fields of catalysis, thermoelectricity and the like can be met.
一种二氧化铀‑碳复相多孔材料的制备方法，该方法如下：1)配制间苯二酚‑甲醛溶胶；2)间苯二酚‑甲醛溶胶经恒温密封保存、空气干燥制得间苯二酚‑甲醛气凝胶；3)将间苯二酚‑甲醛气凝胶在氩气气氛下高温处理，得到多孔碳材料；4)配制氧化铀前驱物溶液；5)将多孔碳材料置于氧化铀前驱物溶液中浸渍，随后在空气中干燥，循环多次，获得多孔材料坯体；6)多孔材料坯体在低压环境下高温处理，得到二氧化铀‑碳复相多孔材料。本发明制备工艺简单，无需昂贵设备。二氧化铀‑碳复相多孔材料物相纯度高，结构稳定性好，且材料密度、比表面积、电导率等可根据设计需求在较大范围内调控，可以满足其在催化、热电等领域的应用。
Preparation method of uranium dioxide-carbon multiphase porous material
The invention relates to a preparation method of a uranium dioxide-carbon multiphase porous material. The method comprises the following steps: 1) preparing resorcinol-formaldehyde sol; 2) sealing and storing the resorcinol-formaldehyde sol at a constant temperature, and drying the resorcinol-formaldehyde sol in air to obtain resorcinol-formaldehyde aerogel; 3) performing high-temperature treatment on the resorcinol-formaldehyde aerogel in an argon atmosphere to obtain a porous carbon material; 4) preparing a uranium oxide precursor solution; 5) dipping the porous carbon material in the uranium oxide precursor solution, then drying in the air, and circulating for multiple times to obtain a porous material blank; and 6) performing high-temperature treatment on the porous material blank in a low-pressure environment to obtain the uranium dioxide-carbon multiphase porous material. The preparation process is simple, and expensive equipment is not needed. The uranium dioxide-carbon multiphase porous material is high in phase purity and good in structural stability, the density, the specific surface area, the conductivity and the like of the material can be regulated and controlled within a large range according to design requirements, and the application of the material in the fields of catalysis, thermoelectricity and the like can be met.
一种二氧化铀‑碳复相多孔材料的制备方法，该方法如下：1)配制间苯二酚‑甲醛溶胶；2)间苯二酚‑甲醛溶胶经恒温密封保存、空气干燥制得间苯二酚‑甲醛气凝胶；3)将间苯二酚‑甲醛气凝胶在氩气气氛下高温处理，得到多孔碳材料；4)配制氧化铀前驱物溶液；5)将多孔碳材料置于氧化铀前驱物溶液中浸渍，随后在空气中干燥，循环多次，获得多孔材料坯体；6)多孔材料坯体在低压环境下高温处理，得到二氧化铀‑碳复相多孔材料。本发明制备工艺简单，无需昂贵设备。二氧化铀‑碳复相多孔材料物相纯度高，结构稳定性好，且材料密度、比表面积、电导率等可根据设计需求在较大范围内调控，可以满足其在催化、热电等领域的应用。
Preparation method of uranium dioxide-carbon multiphase porous material
一种二氧化铀-碳复相多孔材料的制备方法
LI NING (author) / YI TAIMIN (author) / CHEN YUNJIAN (author) / LIU DONG (author) / YANG MENGSHENG (author) / XING PIFENG (author) / KE BO (author) / JEONG BONG SEONG (author)
2024-01-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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