1
|
Zhang X, Zhao F, Wang Y, Liang X, Zhang Z, Feng Y, Li Y, Tang L, Feng W. Two-Dimensional GeTe: Air Stability and Photocatalytic Performance for Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2020; 12:37108-37115. [PMID: 32643918 DOI: 10.1021/acsami.0c08699] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
As a key method to convert solar into chemical energy, photocatalytic water decomposition has garnered attention. Moreover, the development of graphene and graphene-like two-dimensional (2D) materials has brought fresh vitality in the field of photocatalysis. Here, we prepared two to four layers of GeTe nanosheets by ultrasonic-assisted liquid-phase exfoliation in argon and air, which we referred to as Ar-GeTe and O-GeTe, respectively. The photocatalytic hydrogen production potential of 2D GeTe was experimentally investigated for the first time. The results indicated that minimally layered GeTe samples are indirect-gap semiconductors with the GeTe band gap increasing after oxidation. All samples have suitable band positions that can drive photocatalytic water splitting into H2 under mild conditions, providing maximum hydrogen evolution rates of 1.13 mmol g-1 h-1 (Ar-GeTe) and 0.54 mmol g-1 h-1 (O-GeTe). With density functional theory computations, the structural stability of GeTe in air was discussed, revealing that oxygen atoms could easily combine with Ge to form a more stable structure, thus impacting the photocatalytic performance of 2D GeTe. Therefore, the light requirement and oxygen deficiency of the material give an advantage in the field of energy supply in space.
Collapse
Affiliation(s)
- Xin Zhang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Fulai Zhao
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Yu Wang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Xuejing Liang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Zhixing Zhang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Yiyu Feng
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
- Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin 300072, P. R. China
- Key Laboratory of Materials Processing and Mold, Ministry of Education, Zhengzhou University, Zhengzhou 450002, China
| | - Yu Li
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
- Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin 300072, P. R. China
| | - Lin Tang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
- Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin 300072, P. R. China
| | - Wei Feng
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
- Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin 300072, P. R. China
| |
Collapse
|
2
|
Huang WH, Gao TL, Huang CW, Chang CF, Wu WW, Tuan HY. Synthesis of single-crystalline Ge 1Sb 2Te 4nanoplates in solution phase. CrystEngComm 2016. [DOI: 10.1039/c5ce02355f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
3
|
Polavarapu L, Mourdikoudis S, Pastoriza-Santos I, Pérez-Juste J. Nanocrystal engineering of noble metals and metal chalcogenides: controlling the morphology, composition and crystallinity. CrystEngComm 2015. [DOI: 10.1039/c5ce00112a] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
4
|
Ma CB, Qi X, Chen B, Bao S, Yin Z, Wu XJ, Luo Z, Wei J, Zhang HL, Zhang H. MoS2 nanoflower-decorated reduced graphene oxide paper for high-performance hydrogen evolution reaction. NANOSCALE 2014; 6:5624-9. [PMID: 24752376 DOI: 10.1039/c3nr04975b] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
A facile, one-pot solvothermal method is developed to synthesize MoS2 nanoflowers (MoS2NFs) coated on reduced graphene oxide (rGO) paper. The resulting MoS2NF/rGO paper serves as a freestanding, flexible and durable working electrode for hydrogen evolution reaction (HER), exhibiting an overpotential lowered to -0.19 V with a Tafel slope of ∼95 mV per decade.
Collapse
Affiliation(s)
- Chong-Bo Ma
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Schulz S, Heimann S, Kaiser K, Prymak O, Assenmacher W, Brüggemann JT, Mallick B, Mudring AV. Solution-Based Synthesis of GeTe Octahedra at Low Temperature. Inorg Chem 2013; 52:14326-33. [DOI: 10.1021/ic402266j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Stephan Schulz
- Institute
of Inorganic Chemistry and Center for Nanointegration Duisburg-Essen
(CENIDE), University of Duisburg-Essen, Universitätsstraße 5-7, D-45117 Essen, Germany
| | - Stefan Heimann
- Institute
of Inorganic Chemistry and Center for Nanointegration Duisburg-Essen
(CENIDE), University of Duisburg-Essen, Universitätsstraße 5-7, D-45117 Essen, Germany
| | - Kevin Kaiser
- Institute
of Inorganic Chemistry and Center for Nanointegration Duisburg-Essen
(CENIDE), University of Duisburg-Essen, Universitätsstraße 5-7, D-45117 Essen, Germany
| | - Oleg Prymak
- Institute
of Inorganic Chemistry and Center for Nanointegration Duisburg-Essen
(CENIDE), University of Duisburg-Essen, Universitätsstraße 5-7, D-45117 Essen, Germany
| | - Wilfried Assenmacher
- Institute
of Inorganic Chemistry, University of Bonn, Römerstraße 164, D-53117 Bonn, Germany
| | - Jörg Thomas Brüggemann
- Inorganic
Chemistry III−Materials Engineering and Characterization, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Bert Mallick
- Inorganic
Chemistry III−Materials Engineering and Characterization, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Anja-Verena Mudring
- Inorganic
Chemistry III−Materials Engineering and Characterization, Ruhr-University Bochum, 44780 Bochum, Germany
- Materials
Science and Engineering, Iowa State University, Ames, Iowa 50010, United States
| |
Collapse
|
6
|
Xiao G, Wang Y, Ning J, Wei Y, Liu B, Yu WW, Zou G, Zou B. Recent advances in IV–VI semiconductor nanocrystals: synthesis, mechanism, and applications. RSC Adv 2013. [DOI: 10.1039/c3ra23209c] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
|