【摘 要】
：
Designing earth-abundant electrocatalysts with high performance towards water oxidation is highly decisive for the sustainable energy technologies.This study develops a facile natural corrosion approach to fabricate nickel-iron hydroxides for water oxidat
【机 构】
：
Key laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education),Hubei
论文部分内容阅读
Designing earth-abundant electrocatalysts with high performance towards water oxidation is highly decisive for the sustainable energy technologies.This study develops a facile natural corrosion approach to fabricate nickel-iron hydroxides for water oxidation.The resulted electrode demonstrates an outstanding activity and stability with an overpotential of 275 mV to deliver 10 mA.cm-2.Experimental and theoretical results suggest the corrosion-induced formation of hydroxides and their transformation to oxyhydroxides would account for this excellent performance.This work not only provides an interesting corrosion approach for the fabrication of excellent water oxidation electrode,but also bridges traditional corrosion engineering and novel materials fabrication,which would offer some insights in the innovative principles for nanomaterials and energy technologies.
其他文献
Sluggish separation and migration kinetics of the photogenerated carriers account for the low-efficiency of CO2 photoreduction into CH4.Design and construction two-dimensional (2D) in-plane heterostructures demonstrate to be an appealing approach to addre
The development of pressure sensor arrays capable of distinguishing the shape and texture details of objects is of considerable interest in the emerging fields of smart robots,prostheses,human-machine interfaces,and artificial intelligence (AI).Here we re
Bifunctional electrocatalysts with high activity toward both oxygen reduction and evolution reaction are highly desirable for rechargeable Zn-air batteries.Herein,a kind of carbon nanotube (CNT) supported single-site Fe-N-C catalyst was fabricated via pyr
Enhancing electrocatalytic water splitting performance by modulating the intrinsic electronic structure is of great importance.Here,porous bimetallic oxide and chalcogenide nanosheets grown on carbon paper denoted as NiCo2X4/CP (X =O,S,and Se) are prepare
广西合浦儒艮国家级自然保护区位于北部湾东北部,目前以保护鲸豚类动物为主,为研究鲸豚类的食物资源——鱼类资源多样性情况,2018—2019年秋冬季,对儒艮保护区及其邻近海域开展鱼类资源底拖网调查.结果表明,该海域共捕获鱼类124种,隶属14目44科92属.相对重要性指数IRI表明2018年10月线纹鳗鲶(Plotosus lineatus)为优势种,2019年1月铅点东方鲀(Takifugu alboplumbeus)和犬牙缰鰕虎鱼(Amoya caninus)为优势种,2019年10月条马鲾(Equuli
Two-dimensional materials have been demonstrated as promising toolboxes for optoelectronics.Transition metal carbides and nitrides (MXenes),members of an emerging family of two-dimensional materials,have drawn extensive attention in optoelectronics owing
Photoelectrochemical oxygen reduction reaction (ORR) toward H2O2 is highly desirable because only sunlight,O2 and water are required in the process.However,the corresponding studies are still at its infancy because of the lack of suitable photocathodes,es
Despite acknowledgment of structural reconstruction of materials following oxygen evolution reaction (OER) reaction,the role of support during the reconstruction process has been ignored.Given this,we directly in situ transform the residual iron present i
Water oxidation,an essential step in photosynthesis,has attracted intense research attention.Understanding the reaction pathways at the electrocatalyst/water interface is of great importance for the development of water oxidation catalysts.How the water i
Despite the extensive application of porous nanostructures as oxygen electrocatalysts,it is challenging to synthesize single-metal state materials with porous structures,especially the ultrasmall ones due to the uniform diffusion of the same metal.Herein,