Harvesting mechanical energy for hydrogen generation by piezoelectric metal-organic frameworks

Zhao, Shiyin1,2,3; Liu, Maosong4; Zhang, Yuqiao4; Zhao, Zhicheng5; Zhang, Qingzhe5,6; Mu, Zhenliang5; Long, Yangke1; Jiang, Yinhua4; Liu, Yong5; Zhang, Jianming4; Li, Shun4; Zhang, Xuanjun2; Zhang, Zuotai1

2022-04-01

10.1039/d1mh01973b

Materials Horizons   影响因子和分区

2051-6347

2051-6355

Piezocatalysis, the process of directly converting mechanical energy into chemical energy, has emerged as a promising alternative strategy for green H-2 production. Nevertheless, conventional inorganic piezoelectric materials suffer from limited structural tailorability and small surface area, which greatly impedes their mechanically driven catalytic efficiency. Herein, we design and fabricate a novel UiO-66(Zr)-F-4 metal-organic framework (MOF) nanosheet for piezocatalytic water splitting, with the highest H-2 evolution rate reaching 178.5 mu mol g(-1) within 5 h under ultrasonic vibration excitation (110 W, 40 kHz), far exceeding that of the original UiO-66 host. A reduced bandgap from 2.78 to 2.43 eV is achieved after introducing a fluorinated ligand. Piezoresponse force microscopy measurements demonstrate a much stronger piezoelectric response for UiO-66(Zr)-F-4, which may result from the polarity of the introduced fluorinated ligand. This work highlights the potential of MOF-based porous piezoelectric nanomaterials in harvesting mechanical energy to drive chemical reactions such as water splitting.

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[22075126] ; Shenzhen Science and Technology Innovation Committee["JCYJ20200109141437586","JCYJ20180504165648211"] ; Science and Technology Development Fund, Macau SAR["019/2017/AMJ","0114/2019/A2","085/2020/A2"] ; Guangdong Basic and Applied Basic Research Foundation[2021A1515111137]

Chemistry ; Materials Science

Chemistry, Multidisciplinary ; Materials Science, Multidisciplinary

WOS:000798862000001

ROYAL SOC CHEMISTRY

20223112450505

Energy harvesting ; Ligands ; Metal-Organic Frameworks ; Scanning probe microscopy ; Ultrasonic effects ; Vibrations (mechanical)

Gas Fuels:522 ; Energy Conversion Issues:525.5 ; Metallurgy:531.1 ; Ultrasonic Waves:753.1 ; Chemistry:801 ; Physical Chemistry:801.4 ; Organic Compounds:804.1 ; Mechanics:931.1

Web of Science

1.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
2.Univ Macau, Fac Hlth Sci, MOE Frontiers Sci Ctr Precis Oncol, Macau 999078, Peoples R China
3.Natl Univ Def Technol, Coll Liberal Arts & Sci, Changsha 410073, Hunan, Peoples R China
4.Jiangsu Univ, Sch Chem & Chem Engn, Inst Quantum & Sustainable Technol IQST, Zhenjiang 212013, Jiangsu, Peoples R China
5.Foshan Southern China Inst New Mat, Foshan 528200, Guangdong, Peoples R China
6.Shandong Univ, Sch Environm Sci & Engn, Shandong Key Lab Environm Proc & Hlth, Qingdao 266237, Shandong, Peoples R China

Zhao, Shiyin,Liu, Maosong,Zhang, Yuqiao,et al. Harvesting mechanical energy for hydrogen generation by piezoelectric metal-organic frameworks[J]. Materials Horizons,2022,9:1978-1983.

Zhao, Shiyin.,Liu, Maosong.,Zhang, Yuqiao.,Zhao, Zhicheng.,Zhang, Qingzhe.,...&Zhang, Zuotai.(2022).Harvesting mechanical energy for hydrogen generation by piezoelectric metal-organic frameworks.Materials Horizons,9,1978-1983.

Zhao, Shiyin,et al."Harvesting mechanical energy for hydrogen generation by piezoelectric metal-organic frameworks".Materials Horizons 9(2022):1978-1983.