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Facile metal-free reduction-based synthesis of pristine and cation-doped conductive mayenite
Khan, Karim; Tareen, Ayesha Khan; Elshahat, Sayed; Muhammad, Naseer; Li, Jia; Aboodd, Israa; Bibbo, Luigi; Yadav, Ashish; Sagar, Rizwan Ur Rehman; Khan, Usman; Ouyang, Zhengbiao
2018
发表期刊RSC ADVANCES
卷号8期号:43页码:24276-24285
摘要In the present study we synthesized conductive nanoscale [Ca24Al28O64](4+) (4e(-)) (hereafter denoted as C(12)A(7):e(-)) material, and reduced graphene oxide (rGO) was produced, which was unexpected; graphene oxide was removed after melting the sample. The conductivity of C(12)A(7):e(-) composites synthesized at 1550 degrees C was 1.25 S cm(-1), and the electron concentration was 5.5 x 10(19) cm(-3). The estimated BET specific surface area of the highly conductive sample was 20 m(2) g(-1). Pristine C(12)A(7):e(-) electride was obtained by melting the composite powder, but the nano size of C(12)A(7):e(-) particles could not be preserved; the value of conductivity was similar to 28 S cm(-1), electron concentration was similar to 1.9 x 10(21) cm(-3), and mass density was 93%. For C(12)A(7-x)V(x):e(-), where x = 0.25 to 1, the conductivity improved to a maximum value of 40 S cm(-1), and the electron density improved to similar to 2.2 x 10(21) cm(-3); this enhancement in conductivity was also proposed by a theoretical study but lacked any associated experimental support.
关键词Temperature-stable Electride Chemical-vapor-deposition Sol-gel Method Ammonia-synthesis Single-crystal 12cao-center-dot-7al(2)o(3) Growth Graphene Oxide Ca12al14o33
学科领域Science & Technology - Other Topics ; Pharmacology & Pharmacy
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/16892
专题2018专题
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GB/T 7714
Khan, Karim,Tareen, Ayesha Khan,Elshahat, Sayed,et al. Facile metal-free reduction-based synthesis of pristine and cation-doped conductive mayenite[J]. RSC ADVANCES,2018,8(43):24276-24285.
APA Khan, Karim.,Tareen, Ayesha Khan.,Elshahat, Sayed.,Muhammad, Naseer.,Li, Jia.,...&Ouyang, Zhengbiao.(2018).Facile metal-free reduction-based synthesis of pristine and cation-doped conductive mayenite.RSC ADVANCES,8(43),24276-24285.
MLA Khan, Karim,et al."Facile metal-free reduction-based synthesis of pristine and cation-doped conductive mayenite".RSC ADVANCES 8.43(2018):24276-24285.
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