کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6602553 | 1424077 | 2018 | 43 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cation-exchange-inducing MnNi-spinel nanocage/rGO as efficient electrocatalysts for water oxidation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Cation-exchange-inducing MnNi-spinel nanocage/rGO as efficient electrocatalysts for water oxidation Cation-exchange-inducing MnNi-spinel nanocage/rGO as efficient electrocatalysts for water oxidation](/preview/png/6602553.png)
چکیده انگلیسی
The oxygen evolution reaction (OER) is recognized as a key half-reaction in the electrolysis of water to produce clean hydrogen. Nanocages have exhibited potential as electrocatalysts for water splitting because their large specific surface areas can provide more exposure to catalytically active sites and abundant pathways for ion (or electrolyte) diffusion. In this report, we present a cation exchange strategy, between Ni2+ and Mn3O4, to facilely synthesize spinel NiMn2O4 nanocages in combination with rGO nanosheets (NMO/rGO). When the synthesized NMO/rGO nanocages were tested as electrocatalysts for OER in water splitting, they exhibited a low overpotential of 284â¯mVâ¯at a stable current density of 10â¯mAâ¯cmâ2 with a Tafel slope of 82.2â¯mV decâ1. This performance was superior to Mn3O4/rGO nanoparticles. The successful synthesis of these nanocages offer pathways for easy accessibility of highly efficient OER electrocatalyst.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 280, 1 August 2018, Pages 266-277
Journal: Electrochimica Acta - Volume 280, 1 August 2018, Pages 266-277
نویسندگان
Qiong Zhang, Dongdong Liu, Cancan Zhang, Yang Tian,