کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10632176 | 992391 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and conductivity of solid high-proton conductor H5GeW10MoVO40·21H2O
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and conductivity of solid high-proton conductor H5GeW10MoVO40·21H2O Synthesis and conductivity of solid high-proton conductor H5GeW10MoVO40·21H2O](/preview/png/10632176.png)
چکیده انگلیسی
A new solid high-proton conductor decatungstomolybdovanadogermanic heteropoly acid (HPA) H5GeW10MoVO40·21H2O has been synthesized for the first time by stepwise acidification and stepwise addition of solutions of the component elements. The product was characterized by chemical analysis, potentiometric titration, IR, UV, XRD and TG-DTA. The IR, UV and XRD indicate that H5GeW10MoVO40·21H2O possesses the Keggin structure. The TG-DTA curve shows the sequence of water loss in the acid, the amount of the loss, as well as the thermostability. The results of AC impedance measurement show that its proton conductivity is 3.58 Ã 10â4 S cmâ1 at 18 °C and the activation energy for proton conduction is 31.82 kJ/mol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 40, Issue 2, 15 February 2005, Pages 405-410
Journal: Materials Research Bulletin - Volume 40, Issue 2, 15 February 2005, Pages 405-410
نویسندگان
Qingyin Wu, Xiaoguang Sang,