1
|
de Izarra A, Coudert FX, Fuchs AH, Boutin A. Molecular Simulation of the Impact of Defects on Electrolyte Intrusion in Zeolites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:19056-19063. [PMID: 38088342 DOI: 10.1021/acs.langmuir.3c03306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
We have investigated through molecular simulation the intrusion of electrolytes in two representative pure-silica zeolites, silicalite-1 and chabazite, in which point defects were introduced in varying amounts. We distinguish between two types of defects, considering either "weak" or "strong" silanol nest defects, resulting in different hydration behaviors. In the presence of weak defects, the hydration process occurs through a homogeneous nucleation process, while with strong defects, we observe an initial adsorption followed by a filling of the nanoporous volume at a higher pressure. However, we show that electrolytes do not penetrate the zeolites, and these defects appear to have only marginal influence on the thermodynamics of electrolyte intrusion. While replacing pure water by the electrolyte solution shifts the intrusion pressure toward higher values because of the drop of water saturation vapor pressure, an increase in hydrophilicity of the framework due to point defects has the opposite effect, showing that controlling the amount of defects in zeolites is crucial for storage energy applications.
Collapse
Affiliation(s)
- Ambroise de Izarra
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
| | - François-Xavier Coudert
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
| | - Alain H Fuchs
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
| | - Anne Boutin
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| |
Collapse
|
2
|
Zhang D, Li K, Chen J, Sun C, Li Z, Lei J, Ma Q, Zhang P, Liu Y, Yang L. Improved catalytic performance in gas-phase dimethyl ether carbonylation over facile NH 4F etched ferrierite. RSC Adv 2023; 13:35379-35390. [PMID: 38058555 PMCID: PMC10696424 DOI: 10.1039/d3ra07084k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 11/29/2023] [Indexed: 12/08/2023] Open
Abstract
Gas-phase dimethyl ether (DME) carbonylation to methyl acetate (MA) initiates a promising route for producing ethanol from syngas. Ferrierite (FER, ZSM-35) has received considerable attention as it displays excellent stability in the carbonylation reaction and its modification strategy is to improve its catalytic activity on the premise of maintaining its stability as much as possible. However, conventional post-treatment methods such as dealumination and desilication usually selectively remove framework Al or Si atoms, ultimately altering the intrinsic composition, crystallinity, and acidity of zeolites inevitably. In this study, we successfully prepared a series of hierarchical ZSM-35 materials through post-treatment with NH4F etching, which dissolved framework Al and Si at similar rates and preferentially attacked the defective sites. Interestingly, the produced pore systems effectively penetrated the [100] plane, offering elevated access to both the 8-membered ring (8-MR) and 10-membered ring (10-MR) channels. The physicochemical and acid properties of the pristine and NH4F etched ZSM-35 samples were comprehensively characterized using various techniques, including XRD, XRF, FESEM, HRTEM, Nitrogen adsorption-desorption, NH3-TPD, Py-IR, 27Al MAS NMR, and 29Si MAS NMR. Under moderate treatment conditions, the intrinsic microporous structure, acid properties, and crystallinity of zeolite were retained, leading to superior catalytic activity and stability with respect to the pristine sample. Nonetheless, severe NH4F etching disrupted the crystalline framework and created additional defective sites, bringing about faster deposition of coke precursors on the interior Brønsted acid sites (BAS) and decreased catalytic performance. This technique provides a novel and efficient method to slightly enhance the micropore and mesopore volume of industrially pertinent zeolites through a straightforward post-treatment, thus elevating the catalytic performance of these zeolites.
Collapse
Affiliation(s)
- Dexin Zhang
- College of Chemical Engineering and Environment, China University of Petroleum Beijing 102249 China
- Luoyang R & D Center of Technologies of Sinopec Engineering (Group) Co., Ltd. Luoyang 471003 China
- School of Chemical Engineering, Sichuan University Chengdu 610065 China
| | - Kang Li
- Luoyang R & D Center of Technologies of Sinopec Engineering (Group) Co., Ltd. Luoyang 471003 China
| | - Junli Chen
- College of Chemical Engineering and Environment, China University of Petroleum Beijing 102249 China
| | - Changyu Sun
- College of Chemical Engineering and Environment, China University of Petroleum Beijing 102249 China
| | - Zhi Li
- Luoyang R & D Center of Technologies of Sinopec Engineering (Group) Co., Ltd. Luoyang 471003 China
| | - Jie Lei
- Luoyang R & D Center of Technologies of Sinopec Engineering (Group) Co., Ltd. Luoyang 471003 China
| | - Qinlan Ma
- College of Chemical Engineering and Environment, China University of Petroleum Beijing 102249 China
| | - Pan Zhang
- School of Chemical Engineering, Sichuan University Chengdu 610065 China
| | - Yong Liu
- School of Chemical Engineering, Sichuan University Chengdu 610065 China
| | - Lin Yang
- School of Chemical Engineering, Sichuan University Chengdu 610065 China
| |
Collapse
|
3
|
Dong Z, Chen W, Xu K, Liu Y, Wu J, Zhang F. Understanding the Structure–Activity Relationships in Catalytic Conversion of Polyolefin Plastics by Zeolite-Based Catalysts: A Critical Review. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Zhongwen Dong
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, People’s Republic of China
| | - Wenjun Chen
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, People’s Republic of China
| | - Keqing Xu
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, People’s Republic of China
| | - Yue Liu
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, People’s Republic of China
| | - Jing Wu
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, People’s Republic of China
| | - Fan Zhang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, People’s Republic of China
| |
Collapse
|
4
|
Engineering and linker-mediated co-immobilization of carotenoid cleavage oxygenase with phenolic acid decarboxylase for efficiently converting ferulic acid into vanillin. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.08.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
5
|
Hu ZP, Han J, Wei Y, Liu Z. Dynamic Evolution of Zeolite Framework and Metal-Zeolite Interface. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01233] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Zhong-Pan Hu
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Jingfeng Han
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Yingxu Wei
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Zhongmin Liu
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| |
Collapse
|
6
|
Hessou EP, Badawi M, Valentin L, Atohoun G, Dzwigaj S, Calatayud M, Tielens F. Elucidation of the IR of Cu and Mn substituted intraframework SiBEA zeolites. Top Catal 2022. [DOI: 10.1007/s11244-022-01601-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
7
|
Qin Z, You Z, Bozhilov KN, Kolev SK, Yang W, Shen Y, Jin X, Gilson JP, Mintova S, Vayssilov GN, Valtchev V. Dissolution Behavior and Varied Mesoporosity of Zeolites by NH 4 F Etching. Chemistry 2022; 28:e202104339. [PMID: 35218101 DOI: 10.1002/chem.202104339] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Indexed: 11/09/2022]
Abstract
The mesopores formation in zeolite crystals has long been considered to occur through the stochastic hydrolysis and removal of framework atoms. Here, we investigate the NH4 F etching of representative small, medium, and large pore zeolites and show that the zeolite dissolution behavior, therefore the mesopore formation probability, is dominated by zeolite architecture at both nano- and sub-nano scales. At the nano-scale, the hidden mosaics of zeolite structure predetermine the spatio-temporal dissolution of the framework, hence the size, shape, location, and orientation of the mesopores. At the sub-nano scale, the intrinsic micropore size and connectivity jointly determine the diffusivity of reactant and dissolved products. As a result, the dissolution propensity varies from removing small framework fragments to consuming nanodomains and up to full digestion of the outmost part of zeolite crystals. The new knowledge will lead to new understanding of zeolite dissolution behavior and new adapted strategies for tailoring hierarchical zeolites.
Collapse
Affiliation(s)
- Zhengxing Qin
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China
| | - Zhenchao You
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China
| | - Krassimir N Bozhilov
- Central Facility for Advanced Microscopy and Microanalysis, University of California, Riverside 900 University Avenue, Riverside, CA 92521, USA
| | - Stefan K Kolev
- "E. Djakov"Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chausee Blvd., 1784, Sofia, Bulgaria
| | - Wei Yang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China
| | - Yanfeng Shen
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China
| | - Xin Jin
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China
| | - Jean-Pierre Gilson
- Laboratoire Catalyse et Spectrochimie, Normandie Univ, ENSICAEN, UNICAEN, CNRS, 6 Bd Maréchal Juin, 14000, Caen, France
| | - Svetlana Mintova
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China.,Laboratoire Catalyse et Spectrochimie, Normandie Univ, ENSICAEN, UNICAEN, CNRS, 6 Bd Maréchal Juin, 14000, Caen, France
| | - Georgi N Vayssilov
- Faculty of Chemistry and Pharmacy, University of Sofia, 1126, Sofia, Bulgaria
| | - Valentin Valtchev
- Laboratoire Catalyse et Spectrochimie, Normandie Univ, ENSICAEN, UNICAEN, CNRS, 6 Bd Maréchal Juin, 14000, Caen, France.,Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China
| |
Collapse
|
8
|
Qin Z, Wang B, Asano N, Wang L, Zhou Y, Liu X, Shen B, Mintova S, Asahina S, Valtchev V. Towards a comprehensive understanding of mesoporosity in zeolite Y at the single particle level. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00313a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A full understanding of zeolite mesoporosity is not trivial yet is necessary to understand and optimize the catalytic performance of zeolites. The present work reports an integrated approach for the...
Collapse
|
9
|
Pacana A, Siwiec D. Universal Model to Support the Quality Improvement of Industrial Products. MATERIALS 2021; 14:ma14247872. [PMID: 34947466 PMCID: PMC8708480 DOI: 10.3390/ma14247872] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/08/2021] [Accepted: 12/17/2021] [Indexed: 11/16/2022]
Abstract
Improving the quality of industrial products quality still is a challenge. Despite using quality control, there is a constant need to support this process to achieve an effective, precise, and complex analysis of product quality. The purpose was to develop a universal model that supports improving the quality of products via the consistent and repetitive determination of the causes of product incompatibilities and actions leading to their elimination; the model can be integrated with any quality control of the product. The model verification was carried out for the incompatibility of the mechanical seal in alloy 410, in which the porosity cluster was identified by the fluorescence method (FPI). The purpose of the analysis was created by the SMART(-ER) method. Then, a team of experts was selected from which the brainstorming (BM) was realized. After the BM method, the source of incompatibility and initial causes were identified. Then, the Ishikawa diagram (according to rule 5M + E) was developed to group the initial causes. Next, during the BM method, the main causes were selected. In the last stage, the 5Why method was used to determine improvement actions, i.e., adjust clotting parameters, introduce the obligation to undergo periodic training, and set aside a separate place for storing the electrodes. Originality is the combination of selected quality management tools in a coherent model, the main aim of which is to identify the main causes of incompatibility and improvement actions. Additionally, this model is universal and has applications with analyzing any product and the causes of its incompatibility, and it can be integrated with any product quality control. Therefore, the model can be useful for improving the quality of products in any enterprise.
Collapse
|