Geometric Effect of Single or Double Metal-Tipped CdSe Nanorods on Photocatalytic H2 Generation

被引：81

作者：

Bang, Jung Up ^{[2
,3
]}

Lee, Seon Joo ^{[2
,3
]}

Jang, Jum Suk ^{[1
]}

Choi, Wonyong ^{[1
]}

Song, Hyunjoon ^{[2
,3
]}

机构：

[1] Pohang Univ Sci & Technol, Sch Environm Sci & Engn, Pohang 790784, South Korea

[2] Korea Adv Inst Sci & Technol, Dept Chem, Taejon 305701, South Korea

[3] Inst for Basic Sci Korea, Ctr Nanomat & Chem React, Taejon 305701, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2012年 / 3卷 / 24期

基金：

新加坡国家研究基金会;

关键词：

VISIBLE-LIGHT; HYDROGEN-PRODUCTION; SELECTIVE GROWTH; SOLID-SOLUTION; WATER; NANOSTRUCTURES; NANOCRYSTALS; EVOLUTION; HYBRID; TIPS;

D O I：

10.1021/jz301732n

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present work, we focused on geometrical (single- or double-tipped) and compositional (Pt or Au) variations of active metal components in a well-defined CdSe nanorod system. These colloidal nanostructures were employed for photocatalytic hydrogen generation from water under the identical reaction conditions with visible light irradiation. The catalysts exhibited significant dependency of the catalytic activity, specifically on the catalyst geometry and the choice of the metal tips, determined by the energetic consideration of electron transfer to the metal tips and hole transfer to the sacrificial reagents on the CdSe nanorods.

引用

页码：3781 / 3785

页数：5

共 18 条

[1] Photocatalytic Hydrogen Production with Tunable Nanorod Heterostructures [J].

Amirav, Lilac ;

Alivisatos, A. Paul .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2010, 1 (07) :1051-1054

[2] Self-templated synthesis of nanoporous CdS nanostructures for highly efficient photocatalytic hydrogen production under visible [J].

Bao, Ningzhong ;

Shen, Liming ;

Takata, Tsuyoshi ;

Domen, Kazunari .

CHEMISTRY OF MATERIALS, 2008, 20 (01) :110-117

[3] Colloidal CdS nanorods decorated with subnanometer sized Pt clusters for photocatalytic hydrogen generation [J].

Berr, Maximilian ;

Vaneski, Aleksandar ;

Susha, Andrei S. ;

Rodriguez-Fernandez, Jessica ;

Doeblinger, Markus ;

Jaeckel, Frank ;

Rogach, Andrey L. ;

Feldmann, Jochen .

APPLIED PHYSICS LETTERS, 2010, 97 (09)

[4] Growth of Photocatalytic CdSe-Pt Nanorods and Nanonets [J].

Elmalem, Einat ;

Saunders, Aaron E. ;

Costi, Ronny ;

Salant, Asaf ;

Banin, Uri .

ADVANCED MATERIALS, 2008, 20 (22) :4312-4317

[5] CdSe-MoS2: A Quantum Size-Confined Photocatalyst for Hydrogen Evolution from Water under Visible Light [J].

Frame, F. Andrew ;

Osterloh, Frank E. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (23) :10628-10633

[6] Selective growth of metal and binary metal tips on CdS nanorods [J].

Habas, Susan E. ;

Yang, Peidong ;

Mokari, Taleb .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (11) :3294-+

[7] Quantum confinement controlled photocatalytic water splitting by suspended CdSe nanocrystals [J].

Holmes, Michael A. ;

Townsend, Troy K. ;

Osterloh, Frank E. .

CHEMICAL COMMUNICATIONS, 2012, 48 (03) :371-373

[8] Topotactic synthesis of mesoporous ZnS and ZnO nanoplates and their photocatalytic activity [J].

Jang, Jum Suk ;

Yu, Chung-Jong ;

Choi, Sun Hee ;

Ji, Sang Min ;

Kim, Eun Sun ;

Lee, Jae Sung .

JOURNAL OF CATALYSIS, 2008, 254 (01) :144-155

[9] Enhanced Photocatalytic and Photoelectrochemical Activity in the Ternary Hybrid of CdS/TiO2/WO3 through the Cascadal Electron Transfer [J].

Kim, Hyoung-il ;

Kim, Jungwon ;

Kim, Wooyul ;

Choi, Wonyong .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (19) :9797-9805

[10] A novel aqueous process for preparation of crystal form-controlled and highly crystalline BiVO4 powder from layered vanadates at room temperature and its photocatalytic and photophysical properties [J].

Kudo, A ;

Omori, K ;

Kato, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (49) :11459-11467

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