کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6600777 | 1423966 | 2018 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Flame-like Ni(OH)2 strongly promotes the dissociation of water and can be used to produce an excellent hybrid electrocatalyst for the hydrogen evolution reaction in alkaline media
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this communication, Ni(OH)2 with a flame-like morphology was successfully electrodeposited on nickel foam (NF) using a ZnO buffer layer. The flame-like Ni(OH)2/NF exhibited efficient activity for the hydrogen evolution reaction (HER) in alkaline media, requiring overpotentials of only 56.4 and 115.8â¯mV to reach current densities of 10 and 100â¯mAâ¯cmâ2, respectively, with a low Tafel slope of 52.8â¯mVâ¯decâ1. These results are nearly comparable to those of commercial Pt/C. The significant improvement in HER activity could be attributed to the flame-like morphology of Ni(OH)2, which may strongly promote the dissociation of water and accelerate the formation of Had. This work also provides a new approach to designing efficient hybrid catalysts for the hydrogen evolution in alkaline media.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 91, June 2018, Pages 66-70
Journal: Electrochemistry Communications - Volume 91, June 2018, Pages 66-70
نویسندگان
Yun Zhou, Chongfeng Sun, Xigang Yang, Gang Zou, Hongjing Wu, Shengqi Xi,