检索结果-南通市图书馆

confined reaction inside nanotubes： New approach to mesoporous g-C3N4 photocatalysts

Nano Research 2017年第11期10卷 3638-3647页

作者： Xueteng Liu Fei Pang Mingyuan He Jianping Ge Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China

Mesoporous g-C3N4 nanorods （NRs） are synthesized through the nano-confined thermal condensation of cyanamide in silica nanotubes （NTs） with porous *** gas bubbles retained during condensation and the limited cyanamide precursor inside the silica NTs lead to the formation of mesoporous *** nano-confined reaction is an alternative method to the traditional templating process for the synthesis of mesoporous *** as-prepared mesoporous g-C3N4 NRs exhibit remarkably improved photocatalytic activity and high stability in water splitting and degradation of Rhodamine B compared with bulk g-C3N4.

关键词： photocatalysis g-C3N4 confined reaction mesoporous

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Layer-controlled 2D Sn_(4)P_(3) via space-confined topochemical transformation for enhanced lithium cycling performance

引用

Nano Research 2024年第11期17卷 9697-9703页

作者： Jianan Gu Yongzheng Zhang Bingbing Fan Yanlong Lv Yanhong Wang Ruohan Yu Meicheng Li State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources School of New Energy North China Electric Power University Beijing 100096 China State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai 200237 China Wuhan University of Technology Sanya 572000 China

Topochemical transformation has emerged as a promising method for fabricating two-dimensional (2D) materials with precise control over their composition and morphology. However, the large-scale synthesis of ultrathin 2D materials with controllable thickness remains a tremendous challenge. Herein, we adopt an efficient topochemical synthesis strategy, employing a confined reaction space to fabricate ultrathin 2D Sn_(4)P_(3) nanosheets in large-scale. By carefully adjusting the rolling number during the processing of Sn/Al foils, we have successfully fabricated Sn_(4)P_(3) nanosheets with varied layer thicknesses, achieving a remarkable minimum thickness of two layers (~ 2.2 nm). Remarkably, the bilayer Sn_(4)P_(3) nanosheets display an exceptional initial capacity of 1088 mAh·g^(−1), nearing the theoretical value of 1230 mAh·g^(−1). Furthermore, we reveal their high-rate property as well as outstanding cyclic stability, maintaining capacity without fading more than 3000 cycles. By precisely controlling the layer thickness and ensuring nanoscale uniformity, we enhance the lithium cycling performance of Sn_(4)P_(3), marking a significant advancement in developing high-performance energy storage systems.

关键词： topochemical transformation 2D materials confined reaction layer-controlled Sn_(4)P_(3)nanosheets lithium storage

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Confining MoS_(2) nanocrystals in MOF-derived carbon for high performance lithium and potassium storage

引用

Green Energy & Environment 2021年第1期6卷 75-82页

作者： Chen Hu Kun Ma Yanjie Hu Aiping Chen Petr Saha Hao Jiang Chunzhong Li Key Laboratory for Ultrafine Materials of Ministry of Education Shanghai Engineering Research Center of Hierarchical NanomaterialsSchool of Materials Science and EngineeringEast China University of Science&TechnologyShanghai200237China Centre of Polymer Systems University InstituteTomas Bata University in ZlinTrida T.Bati 567876001ZlinCzech Republic

Developing an efficient synthesis protocol to simultaneously control 2D nanomaterials’size and dispersion is the pivot to optimize their electrochemical ***,we report the synthesis of uniform MoS_(2) nanocrystals well-anchored into the void space of porous carbon(donated as MoS_(2)3C hybrids)by a simple confined reaction in metal–organic framework(MOF)during carbonization *** strong confinement effect refrain MoS2 growth and aggregation,generating abundant active centers and edges,which contribute fast lithium/potassium reaction *** addition to the hybridization with the derived carbon,the MoS_(2)3C hybrids exhibit rapid Liþtransfer rate(~109 cm^(2) s 1)and greatly improved electronic ***,the MoS23C hybrids show ultrafast rate performances and satisfactory cycling stabilities as anode materials for both lithium and potassium ion *** work demonstrates a universal tactic to achieve high dispersive 2D nanomaterials with tailorable particle size.

关键词： confined reaction MoS_(2) Nanocrystals Metal–organic framework Energy storage

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

Using graphene to suppress the selenization of Pt for controllable fabrication of monolayer PtSe2

引用

Nano Research 2020年第12期13卷 3212-3216页

作者： Zhong-Liu Liu Zhi-Li Zhu Xu Wu Jin-An Shi Wu Zhou Li-Wei Liu Ye-Liang Wang Hong-Jun Gao Institute of Physics and University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing100190China School of Information and Electronics MIIT Key Laboratory for Low-Dimensional Quantum Structure and DevicesBeijing Institute of TechnologyBeijing100081China CAS Center for Excellence in Topological Quantum Computation Beijing100049China

Platinum diselenide(PtSe2)is a promising transition metal dichalcogenide(TMDC)material with unique *** is necessary to find a controllable fabrication method to bridge PtSe2 with other two-dimensional(2D)materials for practical applications,which has rarely been reported so ***,we report that the selenization of Pt(111)can be suppressed to form a Se intercalated layer,instead of a PtSe2 monolayer,by inducing confined conditions with a precoating of *** with graphene-island samples demonstrate that the monolayer PtSe2 can be controllably fabricated only on the bare Pt surface,while the Se intercalated layer is formed underneath graphene,as verified by atomic-resolution observations with scanning transmission electron microscopy(STEM)and scanning tunneling microscopy(STM).In addition,the orientation of the graphene island shows a negligible influence on the Se intercalated layer induced by the graphene *** extending the application of 2D confined reactions,this work provides a new method to control the fabrication and pattern 2D materials during the fabrication process.

关键词： PtSe2 graphene confined reaction selenization intercalation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

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

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

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：