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Li Z, Wu Y, Wang H, Wu Z, Wu X. High-Efficiency Electrocatalytic Reduction of N 2O with Single-Atom Cu Supported on Nitrogen-Doped Carbon. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:8976-8987. [PMID: 38653761 DOI: 10.1021/acs.est.4c00765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Nitrous oxide (N2O) is a potent greenhouse gas with a high global warming potential, emphasizing the critical need to develop efficient elimination methods. Electrocatalytic N2O reduction reaction (N2ORR) stands out as a promising approach, offering room temperature conversion of N2O to N2 without the production of NOx byproducts. In this study, we present the synthesis of a copper-based single-atom catalyst featuring atomic Cu on nitrogen-doped carbon black (Cu1-NCB). Attributed to the highly dispersed single-atom Cu sites and the effective suppression of the hydrogen evolution reaction, Cu1-NCB demonstrated an optimal N2 faradaic efficiency (82.1%) and yield rate (3.53 mmol h-1 mgmetal-1) at -0.2 and -0.5 V vs RHE, respectively, outperforming previously reported N2ORR electrocatalysts. Further, a gas diffusion electrode cell was employed to improve mass transfer and achieved a 28.6% conversion rate of 30% N2O with only a 14 s residence time, demonstrating the potential for practical application. Density functional theory calculations identified Cu-N4 as the crucial active site for N2ORR, highlighting the significance of the unsaturated coordination and metal-support electronic structure. O-terminal adsorption of N2O was favored, and the dissociative adsorption (*ON2 → *O + N2) was the rate-determining step. These findings reveal the broad prospects of N2O decomposition via electrocatalysis.
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Affiliation(s)
- Zhe Li
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Yunshuo Wu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Haiqiang Wang
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Zhongbiao Wu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Xuanhao Wu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
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Liu Y, Yang D, Shang J, Zhou J, Chang V. Direct decomposition of NO over 8MR in high silica Cu-LTA zeolite: A DFT study on reaction mechanisms, thermodynamics and kinetics. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Adsorption and decomposition mechanism of N2O molecule over MC23 (M = Ru, Mn, V, Pd, and Rh) nanoclusters: A comparative DFT investigation. Struct Chem 2022. [DOI: 10.1007/s11224-022-01984-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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DFT Study on the Combined Catalytic Removal of N2O, NO, and NO2 over Binuclear Cu-ZSM-5. Catalysts 2022. [DOI: 10.3390/catal12040438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The large amount of nitrogen oxides (N2O, NO, NO2, etc.) contained in the flue gas of industrial adipic acid production will seriously damage the environment. A designed binuclear Cu-ZSM-5 catalyst can be applied to decompose N2O and reduce NO and NO2, purifying the air environment. Using the density functional theory method, the catalytic decomposition mechanisms of N2O, NOX-NH3-SCR, and NOX-assisted N2O decomposition is simulated over the Cu-ZSM-5 model. The results indicate that N2O can be catalytically decomposed over the binuclear Cu active site in the sinusoidal channel. The speed-limiting step is the second N2O molecule activation process. After the decomposition of the first N2O molecule, a stable extra-frame [Cu-O-Cu]2+ structure will generate. The subsequent discussion proved that the NOX-NH3-SCR reaction can be realized over the [Cu-O-Cu]2+ active site. In addition, it proved that the decomposition reaction of NO and NO2 can be carried out over the [Cu-O-Cu]2+ active site, and NO can greatly reduce the energy barrier for the conversion of the active site from [Cu-O-Cu]2+ to the binuclear Cu form, while NO2 can be slightly reduced. Through discussion, it is found that the binuclear Cu-ZSM-5 can realize the combined removal of N2O and NOX from adipic acid flue gas, hoping to provide a theoretical basis for the development of a dual-functional catalyst.
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A DFT study on the mechanism of NO and N2O decomposition catalysed by Cu(I) pairs in Cu-ZSM-5: Revisited reactivity at the M6 ring. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Gao X, Li Y, Chen J, Yang X, Zhang Z, Chang Z, Li Y. First-principles study of N2O decomposition on (001) facet of perovskite LaBO3 (B = Mn, Co, Ni). MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Isupova LA, Ivanova YA. Removal of Nitrous Oxide in Nitric Acid Production. KINETICS AND CATALYSIS 2020. [DOI: 10.1134/s0023158419060041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Junwei Zhou, Chen Z, Zeng F, Zhao Y, Tang G, Gong L, Wu YB, Shang YW, Li SX. Effect of Solvent Polarity on Bromobutyl Rubber Isomerization. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024419130405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Xiong S, Chen J, Huang N, Yang S, Peng Y, Li J. Balance between Reducibility and N 2O Adsorption Capacity for the N 2O Decomposition: Cu xCo y Catalysts as an Example. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:10379-10386. [PMID: 31380634 DOI: 10.1021/acs.est.9b02892] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
CuxCoy (CuO-Co3O4 mixed oxides) catalysts were prepared via co-precipitation for the N2O decomposition reaction. They exhibited a higher N2O decomposition activity than that of pure CuO and Co3O4 because of the balance of the redox property and N2O adsorption capacity. Co3O4 presented a large number of surface oxygen vacancies, increasing the N2O chemical adsorption as "□-Co-ON2" on the catalyst surface, whereas CuO was dispersed around Co3O4 and presented high reducibility on the interface of Co3O4-CuOx for the N-O break of N2O, healing oxygen vacancies by leaving one oxygen atom in the vacancy. Based on kinetic studies, the rate constant of N2O decomposition was related to the number of surface vacancy sites ([Mn+]) and the rate of N-O break (k3), whereas the rate-determining step is the N-O break. Therefore, the N2O decomposition rate is first order to the N2O concentration. Overall, both the density functional theory calculations and kinetic results indicate that the quantities of adsorption and activation sites derived from the interaction between Co and Cu (dual-function mechanism) were accounted for the excellent N2O decomposition performance of CuxCoy catalysts.
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Affiliation(s)
- Shangchao Xiong
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , PR China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment , Tsinghua University , Beijing 100084 , PR China
| | - Jianjun Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , PR China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment , Tsinghua University , Beijing 100084 , PR China
| | - Nan Huang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , PR China
- School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , PR China
| | - Shijian Yang
- School of Environment and Civil Engineering , Jiangnan University , Wuxi 214122 , PR China
| | - Yue Peng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , PR China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment , Tsinghua University , Beijing 100084 , PR China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , PR China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment , Tsinghua University , Beijing 100084 , PR China
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Thuy PT, Thao Linh DT, Giang VTH, Cuong NT, Minh Hue NT. Theoretical investigation of the mechanism of indirect decomposition of nitrous oxide (N 2
O) by hydrogen (H 2
) on Cu 7
cluster. VIETNAM JOURNAL OF CHEMISTRY 2018. [DOI: 10.1002/vjch.201800088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Phan Thi Thuy
- Faculty of Chemistry and Center for Computational Science; Hanoi National University of Education; Viet Nam
- School of Natural Sciences Education; Vinh University; Viet Nam
| | - Dao Thi Thao Linh
- Faculty of Chemistry and Center for Computational Science; Hanoi National University of Education; Viet Nam
| | - Vu Thi Huong Giang
- Faculty of Chemistry and Center for Computational Science; Hanoi National University of Education; Viet Nam
| | - Ngo Tuan Cuong
- Faculty of Chemistry and Center for Computational Science; Hanoi National University of Education; Viet Nam
| | - Nguyen Thi Minh Hue
- Faculty of Chemistry and Center for Computational Science; Hanoi National University of Education; Viet Nam
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Morpurgo S. The mechanism of NO and N2O decomposition catalyzed by short-distance Cu(I) pairs in Cu-ZSM-5: A DFT study on the possible role of NO and NO2 in the [Cu O Cu]2+ active site reduction. J Catal 2018. [DOI: 10.1016/j.jcat.2018.08.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Effect of copper precursors on the catalytic performance of Cu-ZSM-5 catalysts in N 2 O decomposition. Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2018.02.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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A DFT study on the mechanism of NO decomposition catalyzed by short-distance Cu(I) pairs in Cu-ZSM-5. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.01.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kefalidis CE, Jones C, Maron L. Mechanistic insights from theory on the reduction of CO2, N2O, and SO2 molecules using tripodal diimine-enolate substituted magnesium(i) dimers. Dalton Trans 2016; 45:14789-800. [PMID: 27518264 DOI: 10.1039/c6dt02189a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The mechanistic investigation of the reductive coupling vs. reductive disproportionation of CO2 using magnesium(i) dimers bearing tripodal ligands, [{Mg[κ(3)-N,N',O-(ArNCMe)2(OCCPh2)CH]}2] (Ar = C6H3Et2-2,6) has been carried out using DFT computational methods. We also elucidated the reduction of N2O to form a μ-oxo magnesium complex which upon addition of CO2 affords the experimentally observed carbonate complex. Finally, the interesting reactivity towards SO2 is considered and some insights into the mechanistic aspects of such activation/homo-coupling reaction are given for both "Nacnac" substituted magnesium(i) dimers ([{((Dip)Nacnac)Mg}2] ((Dip)Nacnac = [(DipNCMe)2CH](-), Dip = C6H3Pr(i)2-2,6)) and those bearing tripodal ligands. The analogy between the activation chemistry of low-valent f-block metal complexes with that of magnesium systems is highlighted.
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Affiliation(s)
- Christos E Kefalidis
- LPCNO, UMR 5215, Université de Toulouse - CNRS, INSA, UPS, 135 Avenue de Rangueil, 31077 Toulouse, France.
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