Article
Energy & Fuels
Ivan Pedroarena, Lucia Grande, Jonathan J. Torrez-Herera, Sophia A. Korili, Antonio Gil
Summary: This research investigates the interactions between alumina-supported nickel catalysts and other metals, and their impact on the catalyst's performance. The reduction capacity of oxide phases has been analyzed, revealing that Pd facilitates the formation of easily reducible NiO species. Furthermore, the impregnation order of Mo and Pd does not significantly affect the catalysts' properties.
Article
Chemistry, Multidisciplinary
Hang Meng Ong, Andrei Veksha, Quan Luu Manh Ha, Jijiang Huang, Zviad Tsakadze, Grzegorz Lisak
Summary: This study investigated the effect of different metal promoters on the catalytic activity of Ni catalysts for the reforming of plastic pyrolysis gas. It was found that using gasification slag from municipal solid waste as a support material showed stable conversion efficiency and good thermal stability. The Ni-Mo catalyst demonstrated the highest conversion efficiency, H2 and CO yields, and lowest coke deposition, and also showed the growth of carbon nanotubes. These findings suggest that Ni catalyst promoted by Mo and loaded on a gasification support has high potential for syngas production from plastic pyrolysis gas.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Thermodynamics
M. Urciuolo, R. Migliaccio, R. Chirone, P. Bareschino, E. Mancusi, F. Pepe, G. Ruoppolo
Summary: The study explores the use of thermochemical conversion processes, specifically pyrolysis, to reuse plastic waste. Experiments were conducted using a Plastic Solid Waste (PSW) sample to assess the effects of pyrolysis temperature and catalyst on the resulting products. Results show that gas and condensate yields increase with pyrolysis temperature, and the use of α-alumina catalyst leads to higher formation of aromatic hydrocarbons in the products.
COMBUSTION SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Jun Bao, Qing-he Yang, Shuang-qin Zeng, Xiao-yi Sang, Wei-ming Zhai, Hong Nie
Summary: High-performance amorphous silica-alumina (ASA) with enhanced specific surface area and acidity was successfully synthesized using the pH-swing method. The morphology and structure of ASA were investigated, and it was found that the morphology and specific surface area of ASA were influenced by the SiO2 content. The increase of surface silanol groups facilitated the formation of Brunsted acid sites (BAS). Furthermore, the activity of ASA was proportional to the concentration of BAS.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Jinghua Xu, Ruifeng Wang, Lirong Zheng, Junguo Ma, Wenjun Yan, Xiaofeng Yang, Junying Wang, Xiong Su, Yanqiang Huang
Summary: The study investigated the nature of Ni active sites using Ni supported on alumina-silica as the catalyst, and found that Ni+ sites exhibit unprecedented activity in ethylene oligomerization, potentially directly participating in the formation of active sites.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Applied
Farshad Gholizadeh, Ali Izadbakhsh, Jiankun Huang, Yan Zi-Feng
Summary: A series of Ni-based catalysts supported on cubic ordered mesoporous alumina (COMA) were synthesized and tested in dry reforming of methane reaction. The 15%NiO/COMA catalyst showed the best catalytic performance, with stability test results proving no activity loss after 210 hours, demonstrating excellent catalytic stability of the COMA structure in DRM reaction.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Pei Huang, Wenguang Zhou, Kuangli Jin, Yunpu Wang, Jun Qian, Lei Liu, Hongyu Peng, Jiabo Wu, Jinye Hu, Mengjiao Wang, Weixin Wang, Ting Luo, Liangliang Fan
Summary: A novel biochar-supported metal catalyst was synthesized and evaluated for the catalytic pyrolysis of plastics. The catalyst showed good catalytic performance in terms of selectivity and yield of gasoline hydrocarbons.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Engineering, Chemical
Shashank Pal, Anil Kumar, Amit Kumar Sharma, Praveen Kumar Ghodke, Shyam Pandey, Alok Patel
Summary: With the depletion of fossil fuels and the increasing amount of plastic waste, the proper management of plastic waste for sustainable technologies is crucial. Chemical recycling technologies based on pyrolysis are considered the best waste management approaches, but further research and development are needed to make waste-plastic-based fuels economically viable.
Article
Engineering, Environmental
Naif Raja, Gloria M. Monsalve-Bravo, Yusuf Valentino Kaneti, Jim Mensah, Karen Wilson, Adam F. Lee, Muxina Konarova
Summary: Thermal pyrolysis of organic components in municipal solid waste (MSW) offers a scalable route to liquid fuels, but requires deep insight into thermochemistry and kinetics. This study investigates the (catalytic) pyrolysis of a model MSW feedstock using thermogravimetric analysis (TGA) and kinetic modeling. Catalytic pyrolysis is sensitive to the catalyst:feedstock mass ratio, and selecting the appropriate heating rate is crucial for catalyst selection and process optimization.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Weilu Wang, Xudong Gong, Fang Wang, Xinyi Wei, Yanliu Dang, Yun Wu, Xianming Zhang
Summary: Ce-doped LaBO3 and its incorporation with 3d transition metals have shown great potential in eliminating propane. The addition of transition metals promotes the density of oxygen vacancies, enhancing the reduction and acidity of the material. This leads to a high conversion rate of propane.
Article
Biochemistry & Molecular Biology
Tahseen Kamal, Ashi Khalil, Esraa M. Bakhsh, Sher Bahadar Khan, Muhammad Tariq Saeed Chani, Mazhar Ul -Islam
Summary: This study successfully synthesized bacterial cellulose (BC) hydrogel sheets and used them as a support material for silver-nickel oxide nanocomposites (Ag/NiO). The BC-Ag/NiO showed excellent catalytic activity and reduction capacity towards congo red, methyl orange, and methylene blue dyes. The nanocomposites hydrogel also demonstrated good antibacterial activity against Escherichia coli and Staphylococcus aureus.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Analytical
Jian Hu, Yanying He, Jilong Zhang, Long Chen, Yu Zhou, Jing Zhang, Honglin Tao, Nan Zhou, Baobin Mi, Fangfang Wu
Summary: In this study, the role of anions in biomass pyrolysis catalyzed by nickel salts was investigated by impregnating four types of nickel salts (Ni(NO3)2, NiSO4, (CH3COO)2Ni, NiCl2) on reed. The results showed that nickel salts inhibited the release of volatiles from biomass and increased the yield of bio-char, with NiCl2 being the most effective. NiSO4 significantly increased the specific surface area and graphitization of bio-char, and improved the selectivity of phenolic compounds in bio-oil (62.27%) and the concentration of CO in pyrolysis gas (37.78%). The addition of NiCl2 enhanced the selectivity of ketone-rich oil (26.95%) and hydrogen-rich gas (56.39%). Ni(NO3)2 was weaker than other nickel salts in catalyzing the cleavage of macromolecular compounds. This research offers a prospective approach to control the distribution and quality of pyrolysis products by using suitable catalyst precursors.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Engineering, Environmental
Um-e-Salma Amjad, Arshia Tajjamal, Anwar Ul-Hamid, Abrar Faisal, Lubna Sherin, Amna Mir, Maria Mustafa, Nabeel Ahmad, Murid Hussain, Young-Kwon Park, Syed Ammar Hussain Zaidi
Summary: The catalytic cracking of polystyrene pyrolysis oil was investigated using Nb2O5 and NiO/Nb2O5 catalysts in a fixed bed reactor. It was found that both catalysts were able to convert dimers in the pyrolysis oil to monomers, with slightly higher activity observed for the NiO/Nb2O5 catalyst. Increasing the temperature positively affected the yield of gases during the catalytic cracking process.
Review
Multidisciplinary Sciences
Sasa Papuga, Milica Djurdjevic, Andrea Ciccioli, Stefano Vecchio Ciprioti
Summary: The latest findings and limitations in catalytic pyrolysis for the processing of plastic waste into valuable fuels are addressed in this review. Catalytic pyrolysis provides better results compared to thermal degradation of plastics, especially in terms of the quality of the obtained liquid hydrocarbon fuel. Various types of catalysts, such as zeolites, fluid catalytic cracking, silica-alumina catalysts, and natural clays, can be used to improve the thermal degradation of plastics. Finding affordable and effective catalysts is crucial for the commercialization of catalytic pyrolysis of plastic waste. This study summarizes the most significant results and investigates the symmetry effects of molecules on the pyrolysis process.
Article
Materials Science, Paper & Wood
Lin Liu, Yucheng Fang, Rongyi Gao, Jianfen Li
Summary: Synthesizing a nickel-based catalyst supported on a ZnZr composite carrier using the sol-gel method can enhance the catalytic performance and efficiency of biomass pyrolysis. The bimetallic carrier of Zn and Zr provides a higher specific surface area, allowing the metallic nickel to enter its mesopores and facilitating catalytic activity. By adjusting the carrier material ratios, loading amounts, residence time, and reaction temperature, optimal gas production can be achieved.
Article
Chemistry, Multidisciplinary
Jilin Wang, Yang Zhang, Lulu Wang, Ruijiang Feng, Fan Zhang
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2018)
Article
Polymer Science
XuYing Zheng, ShiYang Song, JiaRui Yang, Jilin Wang, Lulu Wang
EUROPEAN POLYMER JOURNAL
(2019)
Article
Polymer Science
Xu Han, Jilin Wang, Lulu Wang
JOURNAL OF APPLIED POLYMER SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
XuYing Zheng, ChenShi Shang, JiaRui Yang, JiLin Wang, Lulu Wang
Article
Polymer Science
Jianhe Tang, Wei Liu, Fan Zhang, Lulu Wang, Jilin Wang, Ruijiang Feng, Yang Zhang
JOURNAL OF POLYMER RESEARCH
(2019)
Article
Polymer Science
Dan Wang, Yifu Wang, Jilin Wang, Lulu Wang
Article
Chemistry, Physical
Xu Han, XuYing Zheng, Shiyang Song, Jilin Wang, Lulu Wang
JOURNAL OF MOLECULAR STRUCTURE
(2019)
Article
Polymer Science
Wei Liu, Lulu Wang, Jilin Wang, Ruijiang Feng
EUROPEAN POLYMER JOURNAL
(2020)
Article
Chemistry, Physical
Chenshi Shang, Ze Wang, Lulu Wang, Jilin Wang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Polymer Science
Yu Ma, Lulu Wang, Ruijiang Feng, Jilin Wang, Tianzhou Cai
Summary: In this study, a novel composite membrane (QCS-IRMOF-3) was prepared by attaching IRMOF-3 with a free amino group to a quaternized chitosan by chemical cross-linking. The composite membrane's mechanical properties, swelling properties, ion exchange capacity, hydroxide conductivity, and chemical stability were investigated, where it was found that the membrane doped with 15 wt% IRMOF-3 crystals exhibited the best overall performance, making it promising for application in alkaline polymer electrolyte fuel cells.
Article
Polymer Science
Wanjie Luo, Lulu Wang, Ruijiang Feng, Chongfeng Zhao, Jilin Wang, Tianzhou Cai
Summary: A series of composite anion exchange membranes were prepared by copolymerizing NVF and DVB, with membranes containing 95% NVF showing the highest mechanical properties and conductivity. The conductivity of the membranes decreased and weight loss occurred in NaOH solution, but the composite membranes showed good permeability to methanol.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Energy & Fuels
Xiangrui Zeng, Lulu Wang, Jilin Wang, Zhiqiang Qu
Summary: A series of anion exchange membranes were prepared by inserting cationic metal-organic framework into quaternized chitosan, resulting in improved OH- conductivity and alkali stability. The introduction of MOFs structure reduced water uptake, swelling ratio, and methanol permeability of the composite membranes.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Polymer Science
Xingyuan Huang, Jilin Wang, Lulu Wang
Summary: In this study, anion exchange membranes (AEMs) with high conductivity and stable chemical properties were prepared using polyvinyl alcohol phytate (PPVA) as the polymer matrix, 1,4-diglycidyl butane ether (DGBE) as the crosslinking agent, and 2,3-epoxypropyl trimethylammonium chloride (EPTMAC) as the quaternization reagent. The AEMs showed excellent mechanical property, OH- conductivity, alkaline stability, and single-cell performance. The optimal conditions for membrane preparation were determined based on the molar ratio of polyvinyl alcohol (PVA) to PA, the content of DGBE, resulting in a membrane with high tensile strength, high anionic conductivity, and good alkali resistance stability.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Chemistry, Physical
Chenshi Shang, Yingxi Liu, Xiangrui Zeng, Wan Jie Luo, Lulu Wang, Jilin Wang
Summary: In this study, a self-made diformyl-dibenzo-18-crown-6 ether (DDB18C6) was grafted into mesoporous molecular sieve (SBA-NH2) to synthesize a modified molecular sieve (SBA-C), which was then used to fabricate an anion exchange membrane for fuel cell applications. The synthesized membrane demonstrated improved OH- transportation efficiency due to its unique internal structure. The P-(SBA(10%)-C) membrane exhibited the highest ionic conductivity (0.107 S.cm(-1)) and power density (354.8 mW cm(-2)) at 80 ?. Additionally, the P-(SBA(10%)-C) membrane showed only a 2% decrease in conductivity after immersion in 6 mol L-1 KOH solution for 168 h, indicating its higher conductivity, good single cell performance, and alkali stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Polymer Science
Yi-fu Wang, He-ting Wan, Dan Wang, Ji-lin Wang, Lu-lu Wang, Rui-jiang Feng
ACTA POLYMERICA SINICA
(2018)
