Review
Chemistry, Physical
Jiawei Zhong, Jingfeng Han, Yingxu Wei, Zhongmin Liu
Summary: This minireview elaborates recent advances in shape selectivity of zeolites and molecular sieve catalysts for the methanol-to-olefins reaction, discussing the influences of cavity and topology structures, modification strategies, and future perspectives on shape selective catalysis.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Weili Dai, Landong Li, Chang Wang, Liu Yang, Mingbin Gao, Xue Shao, Guangjun Wu, Naijia Guan, Zhaochao Xu, Mao Ye
Summary: This study presents a strategy of combining precoking and steaming to construct active naphthalenic species within SAPO-34 catalyst, achieving both high olefin selectivity and prolonged catalyst lifetime in methanol-to-olefin conversion. The spatiotemporal distribution and evolution of the naphthalenic species during the precoking and steaming processes were elucidated. This strategy shows promising prospects for commercial SAPO-34 catalyst in the methanol-to-olefin industry.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Green & Sustainable Science & Technology
Z. Liu, Q. Wang, S. Liu, M. Yang, D. Fan, D. Zhu, P. Tian
Summary: The large-scale industrialization of the methanol-to-olefins (MTO) process has led to a significant consumption of MTO catalyst. The conversion of spent MTO catalyst into valuable materials is important for environmental protection and the development of the MTO industry. In this study, the spent MTO catalyst was used as raw material for the synthesis of SAPO-34 and their catalytic applications. Different-sized amines were employed as synthesis templates, and high crystallinity SAPO-34 with varied Si contents could be synthesized using the reactive Si/Al/P sources in the spent MTO catalyst. Low-silica SAPO-34 exhibited good catalytic performance, and SAPO-34-DEA showed excellent catalytic performance in the methanol ammoniation reaction due to its higher acid concentration and larger crystal size.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Applied
Baorong Wang, Peixin Rui, Xinheng Cai, Xianqing Xie, Weilin Liao, Yibin Luo, Xingtian Shu
Summary: This study investigates the co-feeding of methanol from stripper units to enhance the ethylene selectivity in the conventional FCC process. The results show that the use of SAPO-34 catalyst under specific conditions can significantly improve the yield of ethylene and light olefins.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Lei Guo, Weiping Zhu, Aihua Xing, Fei Li, Zhihui Guo
Summary: SAPO-34 molecular sieves with various special morphologies were successfully synthesized using mixed templates and by varying the silicon content in the gel. The acidity and morphology of the synthesized SAPO-34s were found to be affected by the silicon content. For the methanol to olefin reaction, SAPO-34 S-0.3 with suitable acidity and hierarchical structures exhibited higher selectivity to ethylene plus propylene and longer catalyst lifetime.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Applied
Li Zhang, Bo Geng, Sen Wang, Pengfei Wang, He Xiao, Jianfeng Jia
Summary: F- was added to regulate the acid property of SAPO-18 molecular sieve and enhance its catalytic performance in methanol-to-olefin reactions. The addition of an appropriate amount of F- during synthesis improved the crystallinity of SAPO-18 and reduced strong acid density and external surface acid content. The H-SAPO-18-I-20-0.0025 molecular sieve exhibited a longer catalytic lifetime (1000 min) and higher selectivity towards light olefins (45.2% propene and 96.1% C2-5 =) than the traditional H-SAPO-18-1-0 sieve in MTO at 400°C.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shinya Kokuryo, Kazuya Tamura, Koji Miyake, Yoshiaki Uchida, Atsushi Mizusawa, Tadashi Kubo, Norikazu Nishiyama
Summary: Zr-doped SAPO-34 was synthesized to enhance the catalytic activity, highlighting the significance of Lewis acidity. The highly-dispersed Zr species in Zr-doped SAPO-34 contributed to the higher catalytic activity compared to pristine or Zr-loaded SAPO-34, indicating the strong impact of highly-dispersed Zr species on the performance of SAPO-34.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Chemical
Zhaojun Gao, Qunfei Wang, Tao Yan, Kaiwen Zhao, Wenqi Liu, Qin He, Qiming Sun, Zhongfu Li, Jingyan Zhang, Conghua Liu
Summary: In this study, hierarchically porous SAPO-18 catalysts with abundant intracrystalline mesopores were successfully designed and fabricated. A cost-effective non-surfactant cationic surfactant, PDADMAC, was used as a pore-forming agent, morphology regulator, and silicon inducer. The resulting hierarchical porous SAPO-18 sheets showed improved catalytic performance compared to conventional SAPO-18 zeolite during the methanol-to-olefin reaction.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Mohammad Ghavipour, Ralph Al Hussami, Kirill Levin, Ranjan Roy, Jan Kopyscinski
Summary: The role of template in the physicochemical properties of SAPO-34 was investigated using various templates in single- and mixed-template methods. The TEA-based sample was found to be a good substitute for TEAOH in single template SAPO, and both TEAOH/DEA and TEAOH/TEA-based samples showed acceptable performance. The catalyst's lifetime was mainly affected by the external surface area, while acidity and particle size played minor roles. In addition, the coke formation mechanism was proposed and confirmed using spectroscopy techniques.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Applied
Zhihong Li, Yuanshuai Liu, Tao Dou, Xiaofeng Li, Chunyu Di, Sheng-Li Chen
Summary: A synthetic strategy for the effective recycling of mother liquors produced from industrial production of SAPO-34 zeolites is reported. By using vapor-phase-transport method, spray-dried mother liquors with added Si, P and Al were converted to crystal seeds, leading to the acquisition of zeolite products with improved porosity and acidity. The topological structures of the zeolites significantly depended on the crystalline phase of the vapor-phase-transport seeds. The as-synthesized zeolites showed enhanced catalytic performance in methanol-to-olefins reactions compared to conventional hydrothermal synthesized zeolites.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jihui Yao, Jiapeng Jiao, Ruiqiang Liu, Fei Zha, Xiaojun Guo, Xiaohua Tang, Haifeng Tian, Yue Chang
Summary: The study successfully synthesized metal-modified SAPO-34 molecular sieves using the template-assisted method, which exhibited better dispersion and catalytic performance compared to those prepared by impregnation. Ni-modified SAPO-34 molecular sieves showed high methanol conversion and selectivity to light olefins in the methanol-to-olefins reaction.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Yu-Ling Zhang, Xue-Gang Li, Wen-De Xiao
Summary: This study investigates the transformation mechanism of C3-C6 olefins on SAPO-34 catalyst without methanol co-feeding. A reaction network is constructed and validated, providing accurate predictions of product distribution.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Materials Science, Ceramics
Hanie Karimi, Jafar Towfighi, Sahar Akhgar
Summary: Hierarchical porous zeolites with mesoporosity introduced by PEG showed improved catalytic performance in the MTO reaction, with a direct relation between mesopores and PEG molecular weight affecting diffusion pathways and acidity. The tuned SAPO-34 catalysts demonstrated enhanced stability and selectivity to light olefins, particularly propylene and total butylene, in comparison to their parent and other modified counterparts.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Biochemical Research Methods
Hossein Roohollahi, Rouein Halladj, Sima Askari
Summary: SAPO-34/AlMCM-41 hierarchical nanocomposite molecular sieve was prepared and studied for catalytic conversion of methanol to light olefins. The composite showed higher methanol conversion and comparable initial selectivity to light olefins, but deactivated faster than pure SAPO-34, possibly due to its smaller mean pore diameter.
COMBINATORIAL CHEMISTRY & HIGH THROUGHPUT SCREENING
(2021)
Article
Chemistry, Inorganic & Nuclear
Zhuwen Duan, Naihong Wang, Hao Xu, Peng Wu
Summary: Nanoparticles of ERI-type aluminophosphate and silicoaluminophosphate were synthesized and characterized in this study. The structure of the materials was examined, and their catalytic performance in the methanol-to-olefin reaction was investigated.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Applied
Lijing Sun, Wenna Zhang, Zhuocheng Li, Miao Yang, Ye Wang, Xiaosi Zhang, Peng Tian, Zhongmin Liu
Summary: Two SAPO molecular sieves with -CLO and MEI topologies, named as SAPO-CLO and ECR-40F, were synthesized in an aminothermal environment using N,N-diethyl ethanolamine (DEEA) as both a solvent and an organic structure-directing agent (OSDA), and N,N,N-trimethylbutylammonium chloride (BTMACl) as a co-OSDA. The introduction of Si atoms into the aluminophosphate framework of DNL-1 has been evidenced by Si-29 MAS NMR. The crystallization efficiency and solid yield of ECR-40F is dramatically improved compared with the previously reported synthesis of ECR-40, thanks to the strong alkaline aminothermal environment combining with the dual OSDAs and fluoride mineralizing agent.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Editorial Material
Engineering, Multidisciplinary
Mao Ye, Peng Tian, Zhongmin Liu
Article
Chemistry, Inorganic & Nuclear
Xiaona Liu, Nana Yan, Chao Ma, Lei Wang, Peng Tian, Peng Guo, Zhongmin Liu
Summary: The study revealed the preferred positions of boron atoms and the importance of structural-directing agents in the synthesis of MFI-type borosilicates, providing a new approach to controlling the locations of Brønsted acids.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Xiaona Liu, Lingmei Liu, Tingting Pan, Nana Yan, Xinglong Dong, Yuanhao Li, Lu Chen, Peng Tian, Yu Han, Peng Guo, Zhongmin Liu
Summary: The study successfully solved the atomic structure of polymorphs A and B of zeolite EMM-17, obtained the first atomic-resolution images of EMM-17, and discovered numerous local structural defects. The unique porous structure of EMM-17 allows for efficient kinetic separation of C-6 alkane isomers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Multidisciplinary
Zhang Xiaosi, Yang Miao, Tian Peng, Liu Zhongmin
Summary: AlPO and SAPO molecular sieves are important materials with wide applications. However, the research on their synthesis is still insufficient and requires further development.
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2022)
Article
Chemistry, Applied
Dongxia Luo, Quanyi Wang, Dong Fan, Miao Yang, Benhan Fan, Kaipeng Cao, Shutao Xu, Peng Tian, Zhongmin Liu
Summary: The size of inorganic cations plays a crucial role in the synthesis of siliceous Beta, with smaller cations facilitating the synthesis and larger ones potentially leading to impurity or amorphous materials. Inorganic cations help promote the fast polymerization of SiO2 colloids, aiding in the high-yield synthesis of siliceous Beta. The resultant material has few defects, high hydrophobicity, and large adsorption capacity for toluene compared to fluoride-synthesized siliceous Beta.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Kaipeng Cao, Dong Fan, Mingbin Gao, Benhan Fan, Nan Chen, Linying Wang, Peng Tian, Zhongmin Liu
Summary: The presence of surface barriers in zeolites plays a crucial role in governing their catalytic performance, affecting both activity and stability of the catalyst. Chemical etching of the outer layer of zeolite crystals has been proven to be an effective strategy to reduce surface barriers, enhance mass transport properties, and improve the activity and stability of the catalyst. This work highlights the importance of controlling synthetic strategy and surface barriers on zeolite crystals for designing highly efficient catalysts.
Article
Chemistry, Multidisciplinary
Pengfei Wu, Miao Yang, Jifeng Pang, Dong Fan, Lei Song, Tantan Sun, Mingyuan Zheng, Peng Tian, Tao Zhang
Summary: The synthesis of efficient and controllable SAPO-34 nanocrystallites catalyst for the conversion of biomass into 5-hydroxymethylfurfural (5-HMF) is of great significance. The obtained SAPO-34 nanocrystallites exhibited remarkable activity in the conversion of mono-, di- and poly-saccharides into 5-HMF.
Review
Chemistry, Physical
Miao Zhang, Houang Long, Dong Fan, Linying Wang, Quanyi Wang, Yujing Chen, Libo Sun, Caixia Qi
Summary: ZSM-48 is a zeolite with a unique framework structure, which shows excellent performance in catalytic reactions. Organic cations play an important role in the synthesis of ZSM-48, and its catalytic performance can be further improved through alkali treatment, physical mixing, and co-crystalline zeolite formation.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Nan Chen, Jin Zhang, Yating Gu, Wenna Zhang, Kaipeng Cao, Wenhao Cui, Shutao Xu, Dong Fan, Peng Tian, Zhongmin Liu
Summary: This study designed a series of bulky gemini-type bis(methylpyrrolidinium) dications as efficient OSDAs for MOR zeolite, improving the distribution of acid sites in the side pockets of MOR and enhancing the catalytic activity in the DME carbonylation reaction.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Linying Wang, Dali Zhu, Juan Wang, Wenhao Cui, Jingfeng Han, Bing Li, Dong Fan, Peng Tian, Zhongmin Liu
Summary: The embryonic CHA zeolite used for SSZ-13 synthesis offers fast crystallization, diverse product SiO2/Al2O3 ratio, and high yield, indicating its potential for enhancing zeolite synthesis efficiency and performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Applied
Kaipeng Cao, Dong Fan, Shu Zeng, Benhan Fan, Nan Chen, Mingbin Gao, Dali Zhu, Linying Wang, Peng Tian, Zhongmin Liu
Summary: A seed-assisted low alkalinity gel system was developed for the organic-free synthesis of MOR zeolite, resulting in nanoassemblies with high Si/Al ratio and solid yield. The acid strength of the samples increased with Si/Al ratio, and sample I-9.4 displayed the best mass transfer performance and acidity accessibility. In the DME carbonylation reaction, sample I-9.4 exhibited the highest activity and selectivity for methyl acetate.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Juan Wang, Linying Wang, Dali Zhu, Wenhao Cui, Peng Tian, Zhongmin Liu
Summary: Na+-free Cu-SSZ-13 zeolites were successfully synthesized using a cooperative strategy, showing advantages of rapid crystallization and high yield. The calcined materials exhibited good NH3-SCR catalytic performance and hydrothermal stability.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Mei Gui Vanessa Wee, Amutha Chinnappan, Runxin Shang, Poh Seng Lee, Seeram Ramakrishna
Summary: Cooling processes, from residences to industries, require a lot of energy and are essential. This study introduces MIL-101(Cr), a new desiccant, to heat exchangers for more efficient cooling. By improving the synthesis method and using a special binder, the MIL-101(Cr)-coated heat exchanger shows improved water uptake capacity and lower regeneration temperature.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ao Zhen, Guanyu Zhang, Ao Wang, Feng Luo, Jiehua Li, Hong Tan, Zhen Li
Summary: In this study, a solvent-free microemulsion method was used to synthesize waterborne polyurethane (WPU) material with high retention of mechanical properties and satisfactory water absorption rates. The material showed excellent biocompatibility and has broad application potential in the field of biomedicine.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Wensong Ge, Rui Wang, Xiaoyang Zhu, Houchao Zhang, Luanfa Sun, Fei Wang, Hongke Li, Zhenghao Li, Xinyi Du, Huangyu Chen, Fan Zhang, Huifa Shi, Huiqiang Hu, Yongming Xi, Jiankang He, Liang Hu, Hongbo Lan
Summary: This paper reviews the research on the surface tension of eutectic gallium-indium alloys (EGaIn) in the field of stretchable electronics. It covers the principles of oxide layer formation, factors influencing surface tension, and methods for surface modification of liquid metals. The paper also discusses the applications of EGaIn surface modification in different fields and highlights the challenges still faced and the future outlook.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiang Song, Lianghao Jia, Zhengen Wei, Tao Xiang, Shaobing Zhou
Summary: This paper provides an overview of the application, preparation, and role of biomimetic structures in solar evaporators with improved evaporation rate and lifetime.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Wei Yuan, Qian Deng, Dong Pan, Xiang An, Canyang Zhao, Wenjun Su, Zhengmin He, Qiang Sun, Ran Ang
Summary: Optimizing the performance of n-type PbTe thermoelectric materials is crucial for practical applications. Dynamic doping has emerged as an effective method to improve the performance of n-type PbTe by optimizing the carrier concentration. This study demonstrates the significance of Mn alloying in enhancing the performance of Ag-doped n-type PbTe by creating a hierarchical structure to suppress thermal transport and improving the Seebeck coefficient.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiaoyan Wang, Meiqi Geng, Shengjun Sun, Qian Xiang, Shiyuan Dong, Kai Dong, Yongchao Yao, Yan Wang, Yingchun Yang, Yongsong Luo, Dongdong Zheng, Qian Liu, Jianming Hu, Qian Wu, Xuping Sun, Bo Tang
Summary: This review provides a comprehensive analysis of the progress and challenges in the field of bifunctional electrocatalysts and efficient electrolyzers for seawater splitting. It summarizes recent advancements and proposes future perspectives for highly efficient bifunctional electrocatalysts and electrolyzers.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Jason K. Phong, Christopher B. Cooper, Lukas Michalek, Yangju Lin, Yuya Nishio, Yuran Shi, Huaxin Gong, Julian A. Vigil, Jan Ilavsky, Ivan Kuzmenko, Zhenan Bao
Summary: Dynamic block copolymers (DBCPs) combine the phase separation of traditional block copolymers with the supramolecular self-assembly of periodic dynamic polymers, resulting in the spontaneous self-assembly of high aspect ratio nanofibers with well-ordered PEG and PDMS domains. DBCPs with a periodic block sequence exhibit superior properties compared to those with a random sequence, including delayed onset of terminal flow and higher ionic conductivity values.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Hong Kyu Lee, Yasaswini Oruganti, Jonghyeon Lee, Seunghee Han, Jihan Kim, Dohyun Moon, Min Kim, Dae-Woon Lim, Hoi Ri Moon
Summary: This study reports the moisture-triggered proton-conductivity switching behavior in Zn5FDC MOFs induced by the presence and absence of coordinating solvents, which illustrates the significant role of coordinating solvents in conductivity variation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Bommaramoni Yadagiri, Sanjay Sandhu, Ashok Kumar Kaliamurthy, Francis Kwaku Asiam, Jongdeok Park, Appiagyei Ewusi Mensah, Jae-Joon Lee
Summary: The molecular engineering of the interface modulator between the perovskite and hole transporting material is crucial for achieving satisfactory performance and stability of perovskite solar cells. In this study, cruciform-shaped dual functional organic materials were employed as surface passivation and hole transporting interfacial layers in perovskite solar cells. The use of these materials significantly improved the power conversion efficiency of the solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Joaquin Martinez-Ortigosa, Reisel Millan, Jorge Simancas, Manuel Hernandez-Rodriguez, J. Alejandro Vidal-Moya, Jose L. Jorda, Charlotte Martineau-Corcos, Vincent Sarou-Kanian, Mercedes Boronat, Teresa Blasco, Fernando Rey
Summary: This study investigates the synthesis of all-silica RTH zeolites using triisopropyl(methyl)phosphonium as the organic SDA. The results show the formation of two distinct crystalline phases under different synthesis conditions, with fluoride bonding to different silicon sites. It demonstrates the possibility of controlling the placement of fluoride in RTH zeolites through synthesis conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Luyao Zheng, Cong Liu, Wenbiao Zhang, Boxu Gao, Tianlan Yan, Yahong Zhang, Xiaoming Cao, Qingsheng Gao, Yi Tang
Summary: This study successfully improves the efficiency and stability of water splitting by constructing a heterostructured electrocatalyst. The catalyst shows extraordinary performance and could offer an effective approach for the sustainable production of hydrogen.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Carlos A. Campos-Roldan, Raphael Chattot, Frederic Pailloux, Andrea Zitolo, Jacques Roziere, Deborah J. Jones, Sara Cavaliere
Summary: This study systematically evaluated the hydrogen evolution/oxidation reactions on a series of Pt-rare earth nanoalloys in alkaline media, and identified the effect of the lanthanide contraction. The experimental results revealed that the chemical nature of the rare earth modulates the adsorption and mobility of oxygenated-species, enhancing the kinetics of the reactions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Sara Frank, Mads Folkjaer, Mads L. N. Nielsen, Melissa J. Marks, Henrik S. Jeppesen, Marcel Ceccato, Simon J. L. Billinge, Jacopo Catalano, Nina Lock
Summary: This study investigates the thermal decomposition of ZIF-67 and its correlation with structural evolution and electrocatalytic performance. The researchers used in situ X-ray absorption spectroscopy and total scattering techniques to analyze the process. They found that disorder emerges at lower temperatures and that extending the pyrolysis process can result in materials with superior electrochemical properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Zi-Yang Zhang, Hao Tian, Han Jiao, Xin Wang, Lei Bian, Yuan Liu, Nithima Khaorapapong, Yusuke Yamauchi, Zhong-Li Wang
Summary: By constructing Cu-0-Cu+-NH2 composite interfaces with the assistance of SiO2, the electrochemical CO2 reduction reaction (CO2RR) achieves high Faraday efficiency and current density for C2+ production, improving the productivity of carbon cycle.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ting Wang, Ruijuan Zhang, Pengda Zhai, Mingjie Li, Xinying Liu, Chaoxu Li
Summary: This study successfully exfoliated COFs using a simple electrochemical method, which resulted in improved photocatalytic performance for COFs and enriched the fabrication approach of COF exfoliation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)