检索结果-南通市图书馆

Enhanced plasmonic absorption of Pt cuboctahedra-WO_(3)nanohybrids used as visible light photocatalysts for overall water splitting

引用

Nano Research 2023年第4期16卷 5919-5928页

作者： Qiaoling Chen Yiwei Tan State Key Laboratory of Materials-Oriented Chemical Engineering School of Chemistry and Chemical EngineeringNanjing Tech UniversityNanjing 211816China

Localized surface plasmon resonance(LSPR)effects of nanoscale plasmonic metals/semiconductor composites have been extensively applied into visible light photocatalysis.However,Pt nanoparticles(NPs)with the visible LSPR absorption maxima have rarely been used as a photosensitizer to facilitate photocatalytic reactions,especially the photocatalytic overall water splitting(POWS)reaction,presumably because they feature weak light absorption.Herein,we present that the increased plasmonic absorption and local field enhancement can be achieved in the wide visible range by exploiting the simulated and experimental expressions of Pt nanocuboctahedra and Pt cuboctahedra-WO_(3)nanohybrids(Pt-WO3).First,monodisperse Pt cuboctahedra with different sizes,a hierarchical WO_(3)nanoarchitecture composed of radially patterned WO_(3)nanopillars,and Pt-WO_(3)were systematically synthesized.Subsequently,visible plasmonic Pt-WO_(3)photocatalysts were employed in the POWS tests and exhibited the significant activity enhancement in the visible light region.The apparent quantum efficiency(AQE)of greater than 7%within the range of visible light has been achieved for the optimal Pt-WO3.

关键词： localized surface plasmon resonance Plasmonic photocatalysis overall water splitting plasmonic Pt nanoparticles WO_(3)

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

Nanostructured materials with localized surface plasmon resonance for photocatalysis

引用

Chinese Chemical Letters 2022年第3期33卷 1154-1168页

作者： Juan Li Zaizhu Lou Baojun Li Institute of Nanophotonics Jinan UniversityGuangzhou 511443China State Key Laboratory for Crystal Materials Shandong UniversityJi'nan 250100China

Localized surface plasmon resonance (LSPR) enhanced photocatalysis has fascinated much interest and considerable efforts have been devoted toward the development of plasmonic photocatalysts. In the past decades, noble metal nanoparticles (Au and Ag) with LSPR feature have found wide applications in solar energy conversion. Numerous metal-based photocatalysts have been proposed including metal/semiconductor heterostructures and plasmonic bimetallic or multimetallic nanostructures. However, high cost and scarce reserve of noble metals largely limit their further practical use, which drives the focus gradually shift to low-cost and abundant nonmetallic nanostructures. Recently, various heavily doped semiconductors (such as WO_(3-x), MoO_(3-x), Cu_(2-x)S, TiN) have emerged as potential alternatives to costly noble metals for efficient photocatalysis due to their strong LSPR property in visible-near infrared region. This review starts with a brief introduction to LSPR property and LSPR-enhanced photocatalysis, the following highlights recent advances of plasmonic photocatalysts from noble metal to semiconductor-based plasmonic nanostructures. Their synthesis methods and promising applicability in plasmon-driven photocatalytic reactions such as water splitting, CO_(2) reduction and pollution decomposition are also summarized in details. This review is expected to give guidelines for exploring more efficient plasmonic systems and provide a perspective on development of Plasmonic photocatalysis.

关键词： Localized surface plasmon resonance Plasmonic photocatalysis plasmonic semiconductor Hot electrons Solar energy harvesting

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

Probing of coupling effect induced plasmonic charge accumulation for water oxidation

引用

National Science Review 2021年第6期8卷 160-168页

作者： Yuying Gao Feng Cheng Weina Fang Xiaoguo Liu Shengyang Wang Wei Nie Ruotian Chen Sheng Ye Jian Zhu Hongyu An Chunhai Fan Fengtao Fan Can Li State Key Laboratory of Catalysis Dalian National Laboratory for Clean EnergyCollaborative Innovation Center of Chemistry for Energy Materials (i Ch EM)Dalian Institute of Chemical PhysicsChinese Academy of Sciences University of Chinese Academy of Sciences School of Chemistry and Chemical Engineering and Institute of Molecular MedicineRenji HospitalSchool of MedicineShanghai Jiao Tong University

A key issue for redox reactions in plasmon-induced photocatalysis, particularly for water oxidation, is the concentration of surface-accumulating charges(electrons or holes) at a reaction site for artificial photosynthesis. However, where plasmonic charge accumulated at a catalyst’s surface, and how to improve local charge density at active sites, remains unknown because it is difficult to identify the exact spatial location and local density of the plasmon-induced charge, particularly with regard to holes. Herein, we show that at the single particle level, plasmon-coupling-induced holes can be greatly accumulated at the plasmonic Au nanoparticle dimer/Ti O2 interface in the nanogap region, as directly evidenced by the locally enhanced surface photovoltage. Such an accumulation of plasmonic holes can significantly accelerate the water oxidation reaction(multi-holes involved) at the interfacial reaction site, with nearly one order of magnitude enhancement in photocatalytic activities compared to those of highly dispersed Au nanoparticles on Ti O2. Combining Kelvin probe force microscopy and theoretical simulation, we further clarified that the local accumulated hole density is proportional to the square of the local near-field enhancement. Our findings advance the understanding of how charges spatially distribute in plasmonic systems and the specific role that local charge density at reaction sites plays in Plasmonic photocatalysis.

关键词： Plasmonic photocatalysis coupling effect charge separation surface photovoltage spatial distribution

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Emerging material engineering strategies for amplifying photothermal heterogeneous CO_(2)catalysis

引用

Journal of Energy Chemistry 2021年第8期30卷 108-125,I0004页

作者： Bingqiao Xie Emma Lovell Tze Hao Tan Salina Jantarang Mengying Yu Jason Scott Rose Amal Particles and Catalysis Research Group School of Chemical EngineeringThe University of New South Wales2052 SydneyAustralia Department of Chemistry Faculty of Science Kyushu UniversityMoto-oka744 Nishi-ku819-0395 FukuokaJapan

Closing the carbon loop,through CO_(2)capture and utilization,is a promising route to mitigate climate change.Solar energy is a sustainable energy source which can be exploited to drive catalytic reactions for utilizing CO_(2),including converting the CO_(2)into useful products.Solar energy can be harnessed through a range of different pathways to valorize CO_(2).Whilst using solar energy to drive CO_(2)reduction has vast potential to promote catalytic CO_(2)conversions,the progress is limited due to the lack of understanding of property-performance relations as well as feasible material engineering approaches.Herein,we outline the various driving forces involved in photothermal CO_(2)catalysis.The heat from solar energy can be utilized to induce CO_(2)catalytic reduction reactions via the photothermal effect.Further,solar energy can act to modify reaction pathways through light-matter interactions.Light-induced chemical functions have demonstrated the ability to regulate intermediary reaction steps,and thus control the reaction selectivity.Photothermal catalyst structures and specific catalyst design strategies are discussed in this context.This review provides a comprehensive understanding of the heat-light synergy and guidance for rational photothermal catalyst design for CO_(2)utilization.

关键词： CO_(2)reduction Photothermal catalysis Material engineering strategies Plasmonic photocatalysis

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

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：