Article
Chemistry, Physical
Lanyi Wang, Yu Ren, Xuehua Yu, Chao Peng, Di Yu, Chengming Zhong, Jia Hou, Chengyang Yin, Xiaoqiang Fan, Zhen Zhao, Jian Liu, Yuechang Wei
Summary: In this study, a novel method called steam seed-assisted colloid crystal template (SSAC) method was developed for the preparation of three dimensionally-ordered macroporous (3DOM) ZSM-5 zeolite catalysts. These catalysts exhibited excellent catalytic performance for the simultaneous removal of soot and NOx due to their unique hierarchical pore structure, redox properties, active oxygen species, and acid sites. The Pr0.2Mn0.8Od/3DOM ZSM-5 catalyst achieved the highest catalytic activity among the synthesized catalysts.
JOURNAL OF CATALYSIS
(2023)
Article
Energy & Fuels
Chunmei Cao, Hua Yang, Jieyu Xiao, Xingchuan Yang, Baozeng Ren, Li Xu, Guoji Liu, Xingang Li
Summary: A series of potassium promoted transition metal oxide crossed nanosheets showed higher catalytic activity for soot oxidation, with KCo-NS performing the best. The interaction between potassium and transition metal oxides generated more oxygen vacancies and active oxygen species. Different catalysts displayed varying catalytic abilities under O-2/N-2 atmosphere or with the introduction of NO.
Article
Engineering, Environmental
Mengting Wang, Zhitao Han, Yubin Liu, Chuanqiu Gao, Xinxiang Pan, Song Zhou
Summary: A series of Ce1_xKxMO3 perovskite catalysts were synthesized by the citrate sol-gel method, in which the catalytic performance was significantly improved by substituting Ce with K. The Ce0.8K0.2CoO3 perovskite catalyst exhibited superior catalytic activity and increased specific surface area, with the formation of Co4+ and abundant oxygen vacancies, facilitating the activation of lattice oxygen species.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Biotechnology & Applied Microbiology
Yanjie Wu, Huiping Zhang, Ying Yan
Summary: Cu-ZSM-5 catalyst was prepared on PSSF and characterized by various methods; the experimental results indicated the influence of catalyst crystallinity and reaction conditions on catalytic performance; the reaction kinetics analysis was conducted using Power-rate Law Kinetic model, obtaining oxidation rate equation suitable for phenol degradation.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Energy & Fuels
Shuo Feng, Chenguang Zhang, Yuye Xing, Zhaoming Li, Boxiong Shen, Fumei Wang, Peng Yuan, Zhuozhi Wang, Jiao Ma, Wenwen Kong
Summary: By studying the Fe-W-Zr-ZSM-5 catalyst, it was found that it exhibited high efficiency in converting NO at temperatures of 300-450℃ and completely oxidizing soot at temperatures of 432-543℃, indicating its great potential in synergistic removal of NO and soot emitted from diesel engines.
Article
Chemistry, Applied
M. I. Avila, M. M. Alonso-Doncel, L. Briones, G. Gomez-Pozuelo, J. M. Escola, D. P. Serrano, A. Peral, J. A. Botas
Summary: The catalytic fast pyrolysis of lignin using ion-exchanged zeolite catalysts showed significant improvements in bio-oil quality and the production of aromatic hydrocarbons and oxygenated compounds.
Article
Chemistry, Multidisciplinary
Ekaterina Makshina, Judit Canadell, Jan van Krieken, Bert F. Sels
Summary: The conversion of methyl lactate to methyl acrylate over ZSM-5 zeolite catalysts in the gaseous phase was studied. High selectivity and stability were achieved using the K-ZSM-5 catalyst with low content of Bronsted acid sites and an overall K-to-Al atom ratio of unity. The addition of 5 to 25 vol% water in methanol improved the catalyst stability, leading to up to 80% acrylate yield at complete ML conversion, with minor deactivation after days-on-stream and fully recoverable catalysis.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Na Guo, Jinyao Zhang, Luxiang Jiang, Dengtai Wang, Zuwu Wang
Summary: Ce/ZSM-5 catalysts with different concentration gradients of Ce were prepared and their performance in toluene degradation was investigated. Ce(20)/ZSM-5 catalyst exhibited superior catalytic performance, while Ru(1)Ce(20)/ZSM-5 catalyst achieved complete conversion of toluene at 245 degrees C with good stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Environmental
Umair H. Bhatti, Haider Sultan, Gwan Hong Min, Sung Chan Nam, Il Hyun Baek
Summary: This study presents a new class of inexpensive and abundant montmorillonite clay-based catalysts, which can be tuned by ion-exchange to enhance surface area and surface acidity, effectively promoting CO2 desorption reactions at low temperatures. The prepared catalysts exhibit good separability and stability, making them promising for industrial applications in CO2 capture.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Di Yu, Xuehua Yu, Chunlei Zhang, Lanyi Wang, Xiaoqiang Fan, Zhen Zhao, Yuechang Wei, Jian Liu, Joanna Grybos, Bartosz Leszczynski, Anna Wach, Dominik Wierzbicki, Andrzej Kotarba, Zbigniew Sojka
Summary: The removal of soot particles by highly efficient catalysts is a major focus of research due to its implications for air pollution and the complexity of the catalytic process. In this study, we synthesized modified Na2Mn3O7 catalysts with single atom Ce and CeO2 nanoparticles, which exhibited exceptional catalytic performance and resistance to water and sulfur. By exploiting the synergy between adsorbed and surface reactive oxygen species and the high yield of NO2, the combustion process of soot was successfully transitioned from gas-solid-solid to gas-gas-solid, achieving low-temperature combustion. This research offers a promising pathway for the development of cost-effective catalysts for the elimination of diesel exhaust emissions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Applied
Evgeny A. Uslamin, Hikaru Saito, Yasushi Sekine, Emiel J. M. Hensen, Nikolay Kosinov
Summary: The modification of ZSM-5 zeolite with Ga and Mo enhances the aromatization of ethane, resulting in the formation of benzene-toluene-xylene mixtures. However, both catalysts suffer from coke formation, leading to rapid deactivation.
Article
Engineering, Environmental
Ruixuan Weng, Xueyi Mei, Zhaoliang Zhang, Ying Xin, Jiaqiang Xu, Yexin Zhang, Jian Zhang
Summary: Elimination of soot particulates at lower temperatures remains challenging. An electrified catalysis strategy using potassium-supported antimony-tin oxides (K/ATO) decreased the soot ignition temperature. Factors such as potassium loading amounts, electric power ramp rates, and nitrogen oxides (NOx) were investigated.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Jianbin Luo, Xinbo Zhu, Hanpeng Wu, Zijian Zhou, Geng Chen, Guohua Yang
Summary: The oxidation of soot particles over M-V/ZSM-5 catalysts (M=Mn, Co and Fe) was investigated in a cylindrical DBD plasma reactor. Soot particles were completely eliminated after 60 minutes of reaction in the plasma reactor. Mn-V/ZSM-5 catalyst exhibited higher catalytic activity towards soot particles compared to the Co-V/ZSM-5, Fe-V/ZSM-5, and VOx/ZSM-5 catalysts in the plasma reactor. However, the CO2 selectivity showed an opposite trend to the soot oxidation rate.
Article
Chemistry, Applied
Atsushi Ishihara, Yuuta Kodama, Tadanori Hashimoto
Summary: Composite catalysts were prepared using mesoporous alumina as a matrix and Ga-exchanged ZSM-5 as a major catalytic component, with investigations into their effects on the activity and selectivity of aromatics from cracking and dehydrocyclization of n-pentane. Experimental results using a fixed bed reactor showed that increasing temperature led to higher conversion of n-pentane and selectivity for aromatics.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Energy & Fuels
Ben Wang, Zhongpeng Wang, Lijie Ai, Wei Liu, Qian Li, Xiuju Wang, Liguo Wang
Summary: A highly active catalyst of K-supported Pr(2)Sn(2)O(7) pyrochlore nanosphere was synthesized and showed excellent catalytic performance and high stability in soot combustion. The potassium species on the catalyst surface exist in three forms and contribute to improved catalyst-soot contact, increased surface basicity, enhanced reducibility, and potential participation in soot oxidation. The results suggest that this catalyst has the potential for application in diesel exhaust control processes.
Article
Instruments & Instrumentation
Kun Tang, Lei Zheng, Jia-Ou Wang, Yi-Dong Zhao
JOURNAL OF SYNCHROTRON RADIATION
(2019)
Article
Engineering, Environmental
Chenchen Qu, Shufang Qian, Liang Chen, Yong Guan, Lei Zheng, Shuhu Liu, Wenli Chen, Peng Cai, Qiaoyun Huang
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Instruments & Instrumentation
Kun Tang, Lei Zheng, Yi Dong Zhao, Shu Hu Liu, Chen Yan Ma, Yu Hui Dong
JOURNAL OF SYNCHROTRON RADIATION
(2019)
Article
Engineering, Environmental
Xiao-lu Fan, Shao-qing Lv, Jin-lan Xia, Zhen-yuan Nie, Duo-rui Zhang, Xuan Pan, Li-zhu Liu, Wen Wen, Lei Zheng, Yi-dong Zhao
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Engineering, Mechanical
Ganlin Zheng, Tongmei Ding, Songhong Pang, Lei Zheng, Tianhui Ren
Article
Chemistry, Multidisciplinary
Jianbin Zhou, Xiaojing Liu, Linqin Zhu, Shuwen Niu, Jinyan Cai, Xusheng Zheng, Jian Ye, Yue Lin, Lei Zheng, Zixuan Zhu, Da Sun, Zheng Lu, Yipeng Zang, Yishang Wu, Junxin Xiao, Qi Liu, Yongchun Zhu, Gongming Wang, Yitai Qian
Article
Engineering, Environmental
Duo-rui Zhang, Hong-rui Chen, Jin-lan Xia, Zhen-yuan Nie, Xiao-lu Fan, Hong-chang Liu, Lei Zheng, Li-juan Zhang, Hong-ying Yang
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Optics
Jingtao Zhu, Bin Ji, Hui Jiang, Jie Zhu, Tao Zhou, Hangyu Zhu, Lei Zheng, Yidong Zhao, Mingqi Cui, Jiaoling Zhao
OPTICAL ENGINEERING
(2020)
Article
Chemistry, Physical
Dan Luo, Boyang Zhou, Bowen Guo, Peng Gao, Lei Zheng, Xiaojun Zhang, Shengjie Cui, Hongjun Zhou, Yongsheng Zhou, Yan Liu
Article
Chemistry, Multidisciplinary
Ruijin Meng, Qiyi Deng, Chengxin Peng, Bingjie Chen, Kexuan Liao, Lunjin Li, Ziyi Yang, Donglei Yang, Lei Zheng, Chi Zhang, Jinhu Yang
Review
Nanoscience & Nanotechnology
Qiaolan Shi, Tianrong Yu, Renfei Wu, Jian Liu
Summary: The development of single-atom catalysts (SACs) in biomedical applications is a rapidly growing field, focusing on understanding the interactions between metal atoms and support materials as well as classifying various enzyme-like activities. This interdisciplinary knowledge integration helps drive the development of SACs in biomedicine.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Multidisciplinary Sciences
Shanlin Li, Ruguang Ma, Jingcong Hu, Zichuang Li, Lijia Liu, Xunlu Wang, Yue Lu, George E. Sterbinsky, Shuhu Liu, Lei Zheng, Jie Liu, Danmin Liu, Jiacheng Wang
Summary: To achieve a zero-carbon economy, advanced anode catalysts are needed for hydrogen production and biomass upgrading using renewable energy. This study focuses on the electrochemical oxidation of nickel-metalloids to create oxyanion-coordinated amorphous nickel oxyhydroxides. The results show that substitution with phosphorus enhances the electrooxidation activity of methanol.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Huimin Wang, Weihan Bing, Chunyuan Chen, Yusen Yang, Ming Xu, Lifang Chen, Lei Zheng, Xiaolin Li, Xin Zhang, Jianjun Yin, Min Wei
CHINESE JOURNAL OF CATALYSIS
(2020)
Article
Chemistry, Physical
Xinxin Zhao, Youran Hong, Mingren Cheng, Shiwen Wang, Lei Zheng, Jiangwei Wang, Yunhua Xu
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Article
Spectroscopy
Chen Hong-rui, Zhang Duo-rui, Nie Zhen-yuan, Zheng Lei, Zhang Li-li, Yang Hong-ying, Xia Jin-lan
SPECTROSCOPY AND SPECTRAL ANALYSIS
(2020)
