Controllable Conversion from Single-Crystal Nanorods to Polycrystalline Nanosheets of NiCoV-LTH for Oxygen Evolution Reaction at Large Current Density,ACS Sustainable Chemistry & Engineering

当前位置： X-MOL 学术 › ACS Sustain. Chem. Eng. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Controllable Conversion from Single-Crystal Nanorods to Polycrystalline Nanosheets of NiCoV-LTH for Oxygen Evolution Reaction at Large Current Density
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-10-22 , DOI: 10.1021/acssuschemeng.0c06052
Qianqian Liu ₁ , Jianfeng Huang ₁ , Xiao Zhang ₁ , Liyun Cao ₁ , Dan Yang ₁ , Jae-hyun Kim ₂ , Liangliang Feng ₁

Affiliation

We report the in situ generation of NiCoV-LTH (layered triple hydroxide) on nickel foam (NF) for electrocatalytic oxygen evolution reaction (OER). By adjusting the molar ratio of Co/V, the NiCoV-LTH/NF material can achieve the conversion from single-crystal nanoneedles to polycrystalline nanosheets. Especially, the resultant NiCoV-LTH polycrystalline nanosheets (denoted as P-NiCoV-LTH/NF) only require ultralow overpotentials of 340 and 373 mV to reach the large current density of 500 and 1000 mA cm^–2 for OER, respectively, and exhibit ultrastrong durability for over 180 h.

中文翻译：

NiCoV-LTH从单晶纳米棒到多晶纳米片的可控转化，可在大电流密度下进行氧气释放反应

我们报告NiCoV-LTH（层状三重氢氧化物）在泡沫镍（NF）上的电催化氧放出反应（OER）的原位生成。通过调节Co / V的摩尔比，NiCoV-LTH / NF材料可以实现从单晶纳米针到多晶纳米片的转化。尤其是，所得的NiCoV-LTH多晶纳米片（称为P-NiCoV-LTH / NF）仅需要340和373 mV的超低过电势即可分别达到OER的500和1000 mA cm ^–2的大电流密度，并表现出超过180小时的超强耐用性。

更新日期：2020-11-02

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11