Self-Assembled Corn-Husk-Shaped Fullerene Crystals as Excellent Acid Vapor Sensors
Self-Assembled Corn-Husk-Shaped Fullerene Crystals as Excellent Acid Vapor Sensors
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DOI：
10.3390/chemosensors10010016
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发表时间：
2022-01
期刊：
影响因子：
4.2
通讯作者：
Zexuan Wei;Jingwen Song;R. Ma;K. Ariga;L. Shrestha
中科院分区：
文献类型：
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作者：
Zexuan Wei;Jingwen Song;R. Ma;K. Ariga;L. Shrestha
低分子量酸蒸汽会导致材料加工过程中的老化和破坏。本文报道了用动态液-液界面沉淀法制备新型玉米皮状富勒烯C60晶体的方法。CHFC生长在异丙醇（IPA）和C60在均三甲苯中的饱和溶液之间的液-液界面在环境温度和压力条件下。CHFC的平均长度、外径和内径均约为100 mm。2.88μm、672 nm和473 nm。X射线衍射（XRD）分析表明，CHFC为面心立方（fcc）和六方密排（hcp）混合晶相，fcc相的晶格参数a = 1.425 nm，V = 2.899 nm 3，hcp相的晶格参数a = 2.182 nm，c = 0.936 nm，a/c比= 2.33，V = 3.859 nm 3。通过透射电子显微镜（TEM）和氮气吸附分析证实CHFC具有介孔结构。其比表面积和孔容均约为0.025. 57.3 m2 g-1和0.149 cm 3 g-1分别高于无孔原始富勒烯C60。石英晶体微天平（QCM）的传感结果表明，由于CHFC的介孔结构和中空结构的增强扩散，CHFC对乙酸蒸汽敏感的优异的传感性能，展示了该材料的潜力，用于开发一种新的传感器系统的脂肪酸蒸汽传感。
Low-molecular-weight acid vapors cause aging and destruction in material processing. In this paper, facile fabrication of novel corn-husk-shaped fullerene C60 crystals (CHFCs) through the dynamic liquid–liquid interfacial precipitation method is reported. The CHFCs were grown at the liquid–liquid interface between isopropyl alcohol (IPA) and a saturated solution of C60 in mesitylene under ambient temperature and pressure conditions. The average length, outer diameter, and inner diameter of CHFCs were ca. 2.88 μm, 672 nm, and 473 nm, respectively. X-ray diffraction (XRD) analysis showed the CHFCs exhibit a mixed face-centered cubic (fcc) and hexagonal-close pack (hcp) crystal phases with lattice parameters a = 1.425 nm, V = 2.899 nm3 for fcc phase and a = 2.182 nm, c = 0.936 nm, a/c ratio = 2.33, and V = 3.859 nm3 for hcp phase. The CHFCs possess mesoporous structure as confirmed by transmission electron microscopy (TEM) and nitrogen sorption analysis. The specific surface area and the pore volume were ca. 57.3 m2 g−1 and 0.149 cm3 g−1, respectively, are higher than the nonporous pristine fullerene C60. Quartz crystal microbalance (QCM) sensing results show the excellent sensing performance CHFCs sensitive to acetic acid vapors due to the enhanced diffusion via mesoporous architecture and hollow structure of the CHFCs, demonstrating the potential of the material for the development of a new sensor system for aliphatic acid vapors sensing.