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Wu Y, Lv J, Xie F, An R, Zhang J, Huang H, Shen Z, Jiang L, Xu M, Yao Q, Cao Y. Single and double transition metal atoms doped graphdiyne for highly efficient electrocatalytic reduction of nitric oxide to ammonia. J Colloid Interface Sci 2023; 656:155-167. [PMID: 37989049 DOI: 10.1016/j.jcis.2023.11.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/30/2023] [Accepted: 11/08/2023] [Indexed: 11/23/2023]
Abstract
The electrocatalytic conversion of nitric oxide (NORR) to ammonia (NH3) represents a pivotal approach for sustainable energy transformation and efficient waste utilization. Designing highly effective catalysts to facilitate the conversion of NO into NH3 remains a formidable challenge. In this work, the density functional theory (DFT) is used to design NORR catalysts based on single and double transition metal (TM:Fe, Co, Ni and Cu) atoms supported by graphdiyne (TM@GDY). Among eight catalysts, the Cu2@GDY is selected as a the most stable NORR catalyst with high NH3 activity and selectivity. A pivotal discovery underscores that the NORR mechanism is thermodynamically constrained on single atom catalysts (SACs), while being governed by electrochemical processes on double atom catalysts (DACs), a distinction arising from the different d-band centers of these catalysts. Therefore, this work not only introduces an efficient NORR catalyst but also provides crucial insights into the fundamental parameters influencing NORR performance.
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Affiliation(s)
- Yuting Wu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, PR China
| | - Jiarui Lv
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, PR China
| | - Fengjing Xie
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, PR China
| | - RunZhi An
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, PR China
| | - Jiaojiao Zhang
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, PR China
| | - Hong Huang
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, PR China
| | - Zhangfeng Shen
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, PR China
| | - Lingchang Jiang
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, PR China
| | - Minhong Xu
- Department of Materials Engineering, Huzhou University, Huzhou 313000, Zhejiang, PR China.
| | - Qiufang Yao
- College of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, Zhejiang, PR China.
| | - Yongyong Cao
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, PR China.
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Zhao H, Liu Y, Wu D, Yu H, Zhang X, Wang H, Shang X, Lv M. Multi-pathway on peroxymonosulfate activation by single cobalt atoms incorporated on CuO with enriched oxygen vacancies for high-efficient oxidation of tetracycline. Environ Pollut 2023; 335:122298. [PMID: 37536475 DOI: 10.1016/j.envpol.2023.122298] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/22/2023] [Accepted: 07/30/2023] [Indexed: 08/05/2023]
Abstract
The development of single atom catalysts (SACs) with superior catalytic performance is a long-term goal for peroxymonosulfate (PMS) activation in advanced oxidation processes (AOPs). A novel SACs that single Co atoms anchored on CuO with enriched oxygen vacancies (Ov) is synthesized successfully by choosing a metal oxide as the carrier creatively. 100% of tetracycline (TC) can be removed by Co-CuO (Ov)/PMS system within 3 min. The corresponding reaction rate constant is 3.1068 min-1, which is much higher than that of CuO (Ov), ZIF-CoN4-C, Co-CuO (without Ov) and CoNP-CuO (Ov), respectively. Co(II) is the primary source of radical pathway (·OH and SO4·-), and its regeneration is promoted by Cu(Ⅰ). The enriched Ov is the major contribution to the nonradical pathway, which promotes the singlet oxygen (1O2) generation together with accelerates the electron transfer from TC to catalyst-PMS*. Besides, the Co-CuO (Ov) exhibits an excellent stability and anti-interference capability. This study highlights a novel strategy to promote PMS activation by incorporating the single metal atoms on a metal oxide carrier with defects to accelerate the redox of dominate metal and stabilize the metal atoms simultaneously, which may inform the design for the next generation of SACs in AOPs.
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Affiliation(s)
- Huanxin Zhao
- College of Environmental and Safety Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, China.
| | - Yuqi Liu
- College of Environmental and Safety Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, China
| | - Dan Wu
- College of Environmental and Safety Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, China
| | - Huixin Yu
- College of Environmental and Safety Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, China
| | - Xuejun Zhang
- College of Environmental and Safety Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, China
| | - He Wang
- College of Environmental and Safety Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, China
| | - Xiaoyuan Shang
- College of Environmental and Safety Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, China
| | - Mingyi Lv
- College of Environmental and Safety Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, China
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Gawish MA, Drmosh QA, Onaizi SA. Single Atom Catalysts: An Overview of the Coordination and Interactions with Metallic Supports. CHEM REC 2022; 22:e202100328. [PMID: 35263021 DOI: 10.1002/tcr.202100328] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/22/2022] [Accepted: 02/22/2022] [Indexed: 11/10/2022]
Abstract
Catalyst utilization is a key economic factor in heterogeneous catalysis, particularly, when noble metals are used as the active phase. A huge saving on catalyst cost can be achieved with developing a single atomic layer of the active catalyst on a given cheap support. Besides the economic benefit, single atom catalysts (SACs) have also shown superior activity and selectivity relative to catalytic particles or nanoparticles; yet they are prone to aggregation and deactivation. The development of effective, stable, and commercially viable SACs is still a huge challenge. One of the remaining key obstacles is the ability to easily and effectively tune SACs-support interactions and coordination in a way that enables the production of robust, stable, and versatile SACs. Accordingly, the coordination and interactions between metallic supports and SACs and their impacts on SACs stability and activity are reviewed in this article.
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Affiliation(s)
- Monaf Abdalmajid Gawish
- Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31216, Saudi Arabia
| | - Q A Drmosh
- Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, Dhahran, 31216, Saudi Arabia
| | - Sagheer A Onaizi
- Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31216, Saudi Arabia.,Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, Dhahran, 31216, Saudi Arabia
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