检索结果-南通市图书馆

Effect of surface m.chanical attrition treatm.nt of titanium.using alum.na balls： surface roughness, contact angle and apatite form.ng ability

引用

Frontiers of m.terials Science 2013年第3期7卷 285-294页

作者： m. jamesh T. S. N. SANKARA NARAYANAN Paul K. CHU II Song PARK m.n Ho LEE National m.tallurgical Laboratory Madras Centre CSIR Madras Complex Taramani Chennai 600 113 India Departm.nt of Physics and m.terial Science City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong China School of Physics University of Sydney NSW 2006 Australia Departm.nt of Dental Biom.terials School of Dentistry Chonbuk National University Jeonju 561-756 South Korea

The effect of surface m.chanical attrition treatm.nt （Sm.T） of com.ercially pure titanium.（CP-Ti） using 8 m. O alum.na balls was studied. Sm.T induced plastic deform.tion, increased the surface roughness, reduced the grain size and decreased the contact angle （from.64° to 43°） with a corresponding increase in surface energy （from.32 to 53 m./m.）. Untreated CP-Ti and those treateded using alum.na bails for 900 s reveals no apatite growth until the 28th day of im.ersion whereas those treated for 1800 and 2700 s exhibit apatite growth In selective areas and the extent of growth is increased with increase in im.ersion tim. an SBF; The study reveals that Sm.T using alum.na balls is beneficial in im.arting the desired surface Cheracteristics, provided the surface contam.nation is lim.ted, which would otherwise decrease the apatite form.ng ability.

关键词： KEYWORDS: nanostructured m.terial surface m.dification sca.ning electron m.cro-scopy (SEm. surface m.chanical attrition treatm.nt(Sm.T)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Tuning the electronic structure of the earth-abundant electrocatalysts for oxygen evolution reaction(OER)to achieve efficient alkaline water splitting-A review

引用

Journal of Energy Chem.stry 2021年第5期30卷 299-342页

作者： m.ham.ed-Ibrahim.jamesh m.ussab Harb Departm.nt of Physics and m.terials Science City University of Hong KongTat Chee AvenueKowloonHong KongChina Applied and Plasm. Physics School of Physics(A28)University of SydneySydneyNSW 2006Australia KAUST Catalysis Center(KCC) Physical Sciences and Engineering Division(PSE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia

Tuning the electronic structure of the electrocatalysts for oxygen evolution reaction(OER)is a prom.sing way to achieve efficient alkaline water splitting for clean energy production(H2).At first,this paper introduces the significance of the tuning of electronic structure,where m.difying the electronic structure of the electrocatalysts could generate active sites having optim.l adsorption energy with OER interm.diates,and that could dim.nish the energy barrier for OER,and that could im.rove the activity for ***,this paper reviews the tuning of electronic structure along with catalytic perform.nces,synthetic m.thodologies,chem.cal properties,and DFT calculations on various nanostructured earth-abundant electrocatalysts for OER in alkaline ***,this review discusses the tuning of the electronic structure of the several nanostructured earth-abundant electrocatalysts including oxide,(oxy)hydroxide,layered double hydroxide,alloy,m.tal phosphide/phosphate,nitride,sulfide,selenide,carbon containing m.terials,m.F,core-shell/hetero/hollow structured m.terials,and m.terials with vacancies/defects for OER in alkaline environm.nt(including activity:overpotential(η)of ≤200 m. at10 m.A cm.(-2);stability:≥100 h;durability:≥5000 cycles).Then,this review discusses the robust stability of the electrocatalysts for OER towards practical ***,this review discusses the in situ form.tion of thin layer on the catalyst surface during *** addition,this review discusses the influence of the adsorption energy of the OER interm.diates on OER perform.nce of the ***,this review sum.arizes the various prom.sing strategies for tuning the electronic structure of the electrocatalysts to achieve enhanced perform.nce for OER in alkaline environm.nt.

关键词： OER electrocatalyst Electrochem.cal water splitting Earth abundant electrocatalyst Hydrogen energy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：