Boosting Photocatalytic Hydrogen Production of a Metal-Organic Framework Decorated with Platinum Nanoparticles: The Platinum Location Matters

被引：594

作者：

Xiao, Juan-Ding ^{[1
]}

Shang, Qichao ^{[2
]}

Xiong, Yujie ^{[1
]}

Zhang, Qun ^{[2
]}

Luo, Yi ^{[2
]}

Yu, Shu-Hong ^{[1
]}

Jiang, Hai-Long ^{[1
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, CAS Key Lab Soft Matter Chem,Dept Chem, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Dept Chem Phys, Hefei Sci Ctr,CAS, Hefei 230026, Anhui, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 32期

关键词：

hydrogen production; metal-organic frameworks; photocatalysis; Pt nanoparticles; ultrafast spectroscopy; EXCITON DYNAMICS; WATER; CO2; SEMICONDUCTOR; EVOLUTION; EFFICIENT; TIO2; CORE; PHOTOREDUCTION; COCATALYSTS;

D O I：

10.1002/anie.201603990

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Improving the efficiency of electron-hole separation and charge-carrier utilization plays a central role in photocatalysis. Herein, Pt nanoparticles of ca. 3 nm are incorporated inside or supported on a representative metal-organic framework (MOF), UiO-66-NH2, denoted as Pt@UiO-66-NH2 and Pt/UiO-66-NH2, respectively, for photocatalytic hydrogen production via water splitting. Compared with the pristine MOF, both Pt-decorated MOF nanocomposites exhibit significantly improved yet distinctly different hydrogen-production activities, highlighting that the photocatalytic efficiency strongly correlates with the Pt location relative to the MOF. The Pt@UiO-66-NH2 greatly shortens the electron-transport distance, which favors the electron-hole separation and thereby yields much higher efficiency than Pt/UiO-66-NH2. The involved mechanism has been further unveiled by means of ultrafast transient absorption and photoluminescence spectroscopy.

引用

页码：9389 / 9393

页数：5

共 58 条

[1] Immobilizing Highly Catalytically Active Pt Nanoparticles inside the Pores of Metal-Organic Framework: A Double Solvents Approach [J].

Aijaz, Arshad ;

Karkamkar, Abhi ;

Choi, Young Joon ;

Tsumori, Nobuko ;

Roennebro, Ewa ;

Autrey, Tom ;

Shioyama, Hiroshi ;

Xu, Qiang .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (34) :13926-13929

[2]

[Anonymous], 2014, ANGEW CHEM

[3]

Artero V., 2012, ANGEW CHEM, V123, P7376

[4] Splitting Water with Cobalt [J].

Artero, Vincent ;

Chavarot-Kerlidou, Murielle ;

Fontecave, Marc .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2011, 50 (32) :7238-7266

[5] Metal-Organic Frameworks with Functional Pores for Recognition of Small Molecules [J].

Chen, Banglin ;

Xiang, Shengchang ;

Qian, Guodong .

ACCOUNTS OF CHEMICAL RESEARCH, 2010, 43 (08) :1115-1124

[6] Multifunctional PdAg@MIL-101 for One-Pot Cascade Reactions: Combination of Host-Guest Cooperation and Bimetallic Synergy in Catalysis [J].

Chen, Yu-Zhen ;

Zhou, Yu-Xiao ;

Wang, Hengwei ;

Lu, Junling ;

Uchida, Takeyuki ;

Qiang, Xu ;

Yu, Shu-Hong ;

Jiang, Hai-Long .

ACS CATALYSIS, 2015, 5 (04) :2062-2069

[7] Hydrogen production by molecular photocatalysis [J].

Esswein, Arthur J. ;

Nocera, Daniel G. .

CHEMICAL REVIEWS, 2007, 107 (10) :4022-4047

[8]

Fateeva A., 2012, Angew. Chem. Int. Ed, V124, P7558, DOI DOI 10.1002/ANGE.V124.30

[9] A Water-Stable Porphyrin-Based Metal-Organic Framework Active for Visible-Light Photocatalysis [J].

Fateeva, Alexandra ;

Chater, Philip A. ;

Ireland, Christopher P. ;

Tahir, Asif A. ;

Khimyak, Yaroslav Z. ;

Wiper, Paul V. ;

Darwent, James R. ;

Rosseinsky, Matthew J. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2012, 51 (30) :7440-7444

[10] An Amine-Functionalized Titanium Metal-Organic Framework Photocatalyst with Visible-Light-Induced Activity for CO2 Reduction [J].

Fu, Yanghe ;

Sun, Dengrong ;

Chen, Yongjuan ;

Huang, Renkun ;

Ding, Zhengxin ;

Fu, Xianzhi ;

Li, Zhaohui .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2012, 51 (14) :3364-3367

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