Article
Chemistry, Physical
Igor Bychko, Anastasiia Bazylevska, Vyacheslav Khavrus, Jianguo Tang, Peter Strizhak
Summary: A series of carbon-encapsulated Ni nanoparticles deposited on carbon nanotubes (Ni@CNT) were prepared using a simple impregnation method and characterized by physicochemical methods. The catalytic performance of Ni@CNT was found to be strongly influenced by the Ni concentration, with samples containing 1% Ni showing the highest activity in model reactions. The study demonstrates that the facile fabrication of Ni@CNT produces efficient catalysts for the hydrogenation of organic compounds using molecular hydrogen, with the catalytic properties primarily associated with the carbon surface and enhanced by the Schwab effect.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Ziyi Xia, Bowei Wang, Jiayi Li, Fangying Zhang, Ligong Chen, Yang Li
Summary: The selective hydrogenation of nitrobenzene to aniline with formic acid over carbon-based metal-free catalysts was achieved. Excellent catalytic performance was observed using a catalyst prepared at 900 degrees C. This superior performance was attributed to the synergistic effect between graphitic nitrogen and pyridinic nitrogen.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Hagai Klein, Karthik Ananth Mani, Vinay Chauhan, Noga Yaakov, Franziska Grzegorzewski, Abraham J. Domb, Guy Mechrez
Summary: The conjugation of MWCNTs and oligomers of polyaniline doped with Ag+ or Cu2+ in a PVC/polyacrylate matrix showed promising chemoresistive sensing performance for detecting ethylene gas.
Article
Chemistry, Multidisciplinary
Zailang Zhuang, Yihui Li, Fang Chen, Xingkun Chen, Zheng Li, Shiyi Wang, Xuepeng Wang, Hejun Zhu, Yuan Tan, Yunjie Ding
Summary: A P-modified Co/SiO2 catalyst was found to show excellent performance in the selective hydrogenation of dimethyl oxalate to methyl glycolate.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Shichao You, Jiwen Ren, Jinghan Zhang, Zhaopeng Yu, Chenqi Zhao, Yibo Wu, Ruofan Liu
Summary: This paper explores the novel technique of aqueous cationic polymerization and investigates the relationship between initiator activity and temperature, as well as the impact of ether on system polarity through experimentation and simulation. The results suggest that this method has the potential for application in the environmentally friendly field of green chemistry.
Article
Materials Science, Multidisciplinary
Liangshuo Li, Lin Qin, Xin Fan, Xinyu Li, Ming Deng
Summary: The study demonstrated a simple and environmentally friendly method for preparing N-doped carbon/PANI composite without binder, showing high capacitance performance and cycling stability for potential use in high energy density supercapacitors.
FRONTIERS OF MATERIALS SCIENCE
(2021)
Article
Engineering, Chemical
Jing Song, Yongjin Cui, Lin Sheng, Yujun Wang, Chencan Du, Jian Deng, Guangsheng Luo
Summary: Studying the kinetics of p-nitrotoluene nitration in industrial processes is challenging due to its fast, highly exothermic, and heterogeneous characteristics. This study successfully established homogeneous reaction conditions using a continuous-flow microreactor system, obtaining accurate kinetic data and providing a general method for similar reactions.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Polymer Science
Xiaoqian Zhang, Shengde Tang, Ming Gao, Chunfeng Sun, Jiasheng Wang
Summary: This study investigates the cationic polymerization of p-methylstyrene in an ionic liquid and finds that the ionic liquid itself does not participate in the polymerization reaction but its ionic environment and high polarity facilitate the polarization of the initiator and monomer, leading to improved controllability of the polymerization reaction.
Article
Engineering, Chemical
Cheng Fu, Guowei Sun, Guofeng Yin, Chan Wang, Guoxia Ran, Qijun Song
Summary: A controllable synthetic route of carbon nanosheets co-doped with phosphorus and nitrogen was developed, showing enhanced catalytic activity for the degradation of tetracycline. The co-doped catalyst improved the adsorption and electron transfer process, achieving efficient catalytic degradation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Yihan Yan, Lorenzo Travaglini, Kieran Lau, Jelena Rnjak-Kovacina, Daniel Ta, Minoo Eslami, Shaohua Yang, Antonio Lauto, David Officer, Damia Mawad
Summary: This study evaluated the effects of different sterilization methods on the physical and electronic properties of a bioelectronic patch containing polyaniline as the conjugated polymer. Ethylene oxide and gamma-irradiation at 15 and 25 kGy doses were found to be the most effective at maintaining the mechanical and electronic properties of the patch. Overall, these findings provide a pathway for the translation of organic bioelectronic devices from acute to long-term in vivo models.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Physical
Y. Z. Song, J. Wang, M. T. Li, Wen Xie
Summary: Alpha-Ag2S crystals were synthesized using hydrothermal method and characterized. The study found that alpha-Ag2S crystals can catalyze the reduction of p-nitrotoluene, and the reduction mechanism was discussed.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Takayuki Tanimoto, Mineto Uchiyama, Masami Kamigaito
Summary: A series of exo-olefin compounds were prepared by selective cationic dimerization of α-methylstyrene derivatives with p-toluenesulfonic acid, and they were used as reversible chain transfer agents for sulfur-free cationic RAFT polymerization. The effects of different R groups on the cationic RAFT polymerization were examined, and block copolymers of α-methylstyrene and methyl methacrylate were synthesized via mechanistic transformation from cationic to radical RAFT polymerization.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Engineering, Environmental
Nazmul Abedin Khan, Mahmud Hassan, Hye Jin Lee, Sung Hwa Jhung
Summary: This report reviewed the recent advances in preparation and characterization of pADC and pPDC materials, and discussed their applications in adsorptive removal/separation of various chemicals from water, liquid fuel, and air. The adsorption results were explained in terms of maximum adsorption capacities, adsorbate-adsorbent interactions, and regeneration of pADC or pPDC adsorbents for recyclability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Analytical
Shouhui Jiao, Zeliang Li, Jingxin Hu, Feng Wang, He Liu, Kun Chen, Aijun Guo, Lanyi Sun, Zongxian Wang, Bernard Wiafe Biney
Summary: In response to the market demand for high-value-added carbonaceous materials and the need for energy conservation and emission reduction, the utilization of FCC slurry oil (SO) in the preparation of these materials has been studied. Mild hydrogenation coupled with distillation as a pretreatment method improves the depth and yield of distillation, and transforms certain high-boiling components into naphthenoaromatic structures that can be further utilized. The carbonization performance of the treated oil varies with its properties, and a section of high-boiling components is found to be exploitable for the preparation of needle coke.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Physical
Aman Bansal, S. David Jackson
Summary: This study investigated the hydrogenation and isomerization of three isomeric propenylbenzenes using a 1% Pt/alumina catalyst in the liquid phase. The results showed that the rate of hydrogenation varied among the different isomers, while isomerization was controlled by thermodynamic constraints. Furthermore, it was found that the adsorption of one isomer inhibited the hydrogenation of the other two isomers, but had little effect on isomerization.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2022)
