气候变化领域集成服务门户(CCPortal): Construction of hierarchical Ni-Co-P hollow nanobricks with oriented nanosheets for efficient overall water splitting

CCPortal

DOI	10.1039/c8ee00076j
	Construction of hierarchical Ni-Co-P hollow nanobricks with oriented nanosheets for efficient overall water splitting
	Hu E.; Feng Y.; Nai J.; Zhao D.; Hu Y.; Lou X.W.
发表日期	2018
ISSN	17545692
起始页码	872
结束页码	880
卷号	11 期号:4
英文摘要	Complex nano-architectures with ordered two-dimensional (2D) building blocks are a class of promising electrocatalysts for different electrochemical technologies. In this work, a novel template-engaged strategy followed by sequential etching and phosphorization treatments is demonstrated to fabricate open and hierarchical Ni-Co-P hollow nanobricks (HNBs) via the assembly of oriented 2D nanosheets. Benefiting from the unique nano-architectures with large electrolyte-accessible surface and abundant mass diffusion pathways, the as-prepared Ni-Co-P HNBs exhibit high electrocatalytic activity, which affords the current density of 10 mA cm-2 at low overpotentials of 270 mV and 107 mV for oxygen and hydrogen evolution reactions respectively, and excellent stability in an alkaline medium. Remarkably, when used as both the anode and cathode, a low cell voltage of 1.62 V is required to reach the current density of 10 mA cm-2, making the Ni-Co-P HNBs an efficient bifunctional electrocatalyst for overall water splitting. © 2018 The Royal Society of Chemistry.
英文关键词	Electrocatalysts; Electrodes; Electrolytes; Nanosheets; Bifunctional electrocatalysts; Building blockes; Electrocatalytic activity; Electrochemical technology; Hydrogen evolution reactions; Nano-architecture; Two Dimensional (2 D); Water splitting; Nickel compounds; catalysis; catalyst; cobalt; electrochemical method; electrolyte; nanoparticle; nanotechnology; nickel; phosphorus
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190272
作者单位	Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua, 321004, China; School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
推荐引用方式 GB/T 7714	Hu E.,Feng Y.,Nai J.,et al. Construction of hierarchical Ni-Co-P hollow nanobricks with oriented nanosheets for efficient overall water splitting[J],2018,11(4).
APA	Hu E.,Feng Y.,Nai J.,Zhao D.,Hu Y.,&Lou X.W..(2018).Construction of hierarchical Ni-Co-P hollow nanobricks with oriented nanosheets for efficient overall water splitting.Energy & Environmental Science,11(4).
MLA	Hu E.,et al."Construction of hierarchical Ni-Co-P hollow nanobricks with oriented nanosheets for efficient overall water splitting".Energy & Environmental Science 11.4(2018).