气候变化领域集成服务门户(CCPortal): High-performance oxygen evolution electrocatalysis by boronized metal sheets with self-functionalized surfaces

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DOI	10.1039/c8ee03405b
	High-performance oxygen evolution electrocatalysis by boronized metal sheets with self-functionalized surfaces
	Guo F.; Wu Y.; Chen H.; Liu Y.; Yang L.; Ai X.; Zou X.
发表日期	2019
ISSN	1754-5692
起始页码	684
结束页码	692
卷号	12 期号:2
英文摘要	The oxygen evolution reaction (OER) is a key half-reaction involved in many important electrochemical reactions, but this process is quite sluggish and the materials needed usually show unsatisfactory activity, stability or corrosion resistance in the harsh electrocatalysis environment. Here we report an effective boronization strategy for the value-added transformation of inexpensive, commercially available metal sheets (Ni, Co, Fe, NiFe alloys and steel sheets) into highly active and stable, corrosion resistant oxygen evolution electrodes. The boronized metal sheets exhibit OER activities that are an order of magnitude higher than those of the corresponding metal sheets, and show significantly improved catalytic stability and corrosion resistance in the operating environment. The in situ formed, ultrathin (2-5 nm), metaborate-containing oxyhydroxide thin films on metal boride surfaces are identified as a self-functionalized, highly active catalytic phase for the OER. In particular, a boronized NiFe alloy sheet is demonstrated to exhibit intrinsic catalytic activity higher than those of the state-of-the-art materials in 1 M KOH, while retaining such catalytic activity for over 3000 hours. Additionally, the boronized NiFe alloy and steel sheets are also demonstrated to have good catalytic activity as well as excellent catalytic stability and corrosion resistance in 30% KOH solution, a widely-adopted electrolyte in commercial water-alkali electrolyzers. © 2019 The Royal Society of Chemistry.
语种	英语
scopus关键词	Alloy steel; Binary alloys; Catalysis; Cobalt alloys; Corrosion resistance; Corrosion resistant alloys; Electrocatalysis; Electrolytes; Metals; Nickel steel; Oxygen; Potassium hydroxide; Steel corrosion; Steel sheet; Ultrathin films; Catalytic stability; Commercial waters; Corrosion-resistant; Electrochemical reactions; Functionalized surfaces; Operating environment; Oxygen evolution; Oxygen evolution reaction; Catalyst activity; boron; catalysis; corrosion; electrokinesis; electrolyte; metal; oxygen; performance assessment; transformation
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162478
作者单位	State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China; State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian, 116023, China; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Guo F.,Wu Y.,Chen H.,et al. High-performance oxygen evolution electrocatalysis by boronized metal sheets with self-functionalized surfaces[J],2019,12(2).
APA	Guo F..,Wu Y..,Chen H..,Liu Y..,Yang L..,...&Zou X..(2019).High-performance oxygen evolution electrocatalysis by boronized metal sheets with self-functionalized surfaces.Energy and Environmental Science,12(2).
MLA	Guo F.,et al."High-performance oxygen evolution electrocatalysis by boronized metal sheets with self-functionalized surfaces".Energy and Environmental Science 12.2(2019).