Article
Chemistry, Physical
Shiyuan Chen, Songda Li, Ruiyang You, Ziyi Guo, Fei Wang, Guanxing Li, Wentao Yuan, Beien Zhu, Yi Gao, Ze Zhang, Hangsheng Yang, Yong Wang
Summary: The structure of PdOx nanoparticles loaded on CeO2 nanocrystals of different shapes was systematically studied using Cs-corrected HRTEM/STEM, XPS, and Raman spectroscopy. The active sites for methane catalytic oxidation were found to be morphology-dependent on the CeO2 supports, with Pd2+ species identified as the active centers. Additionally, the chemical states of Pd can be tuned through interactions with CeO2 in oxidizing/reducing atmospheres.
Article
Energy & Fuels
Shuangxi Lin, Zhenhua Li, Maoshuai Li
Summary: Interfaces derived from metal-support interaction and oxygen vacancies are key factors affecting CO2 methanation performance. By designing CeO2 nanocubes of different sizes, the modulation of metal-support interaction and oxygen vacancy concentration was achieved. The impact of oxygen vacancy and phase interface on activating CO2 molecules was demonstrated, and smaller CeO2 nanocubes exhibited superior performance in CO2 methanation.
Article
Chemistry, Physical
Liuyang Li, Ling Yan, Zhizhou Wu, Xuedong Zhou, Xiujian Zhao, Baoshun Liu
Summary: The study focuses on the dehydrogenation of isopropanol over monodisperse Ag nanocubes, revealing that light illumination can enhance the reaction efficiency without compromising selectivity. Factors such as reaction temperatures, light wavelengths, light intensities, and nanocube sizes are investigated to understand their influence on catalytic yields. Plasmonic non-thermal effect is found to have a low contribution to the light-induced increase in catalytic activity.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Dong Liu, Feiyang Hu, Yue Yan, Runping Ye, Xiaohan Chen, Bingying Han, Zhang-Hui Lu, Li Zhou, Gang Feng, Rongbin Zhang
Summary: By using a three-dimensional ordered microporous material, Au/CeO2 catalyst was synthesized and showed complete CO oxidation at lower temperatures compared to traditional catalysts. This microporous catalyst also exhibited good stability and the promotion of metal distribution and oxygen vacancies by the fiber structure was discovered through various characterizations.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Zhiqiang Wang, Juncheng Zhu, Xiaolong Zu, Yang Wu, Shu Shang, Peiquan Ling, Panzhe Qiao, Chengyuan Liu, Jun Hu, Yang Pan, Junfa Zhu, Yongfu Sun, Yi Xie
Summary: In this study, noble-metal-doped two-dimensional metal oxide nanosheets were designed for selective CO2 photoreduction to CH4. The Pd-doped CeO2 nanosheets achieved nearly 100% CH4 selectivity with a CH4 evolution rate of 41.6 mu mol g(-1) h(-1).
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Yuxuan Liu, Yong Zou, You Wang, Yuanyuan Ma, Sai Zhang, Yongquan Qu
Summary: In this study, Pt nanoparticles supported on oxygen-deficient CeO2 nanorods were prepared and showed enhanced efficiency in hydrogen production from methanol decomposition. Mechanistic investigations revealed that the oxygen defects and high electronic density promoted the activation of O-H and C-H bonds, while the down-shifting of Pt's d-band center facilitated the desorption of *CO intermediates.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Qiong Liu, Hui Cheng, Tianxiang Chen, Tsz Woon Benedict Lo, Zhangmin Xiang, Fuxian Wang
Summary: This study presents a new strategy for designing carbon nitrides for highly selective and sustainable conversion of CO2 to CH3CHO, achieved through the selective photocatalytic hydrogenation of CO2 to CH3CHO using a modified polymeric carbon nitride under mild conditions.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Kaili Zhang, Qinglei Meng, Haihong Wu, Jiang Yan, Xuelei Mei, Pengfei An, Lirong Zheng, Jing Zhang, Mingyuan He, Buxing Han
Summary: CeO2-supported Ru single-atom catalysts enable the hydrogenation of the benzene ring and catalyze etheric C-O(R) bond cleavage, leading to high yields of cyclohexanols.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Energy & Fuels
Lin-Cong He, Hua-Hui Xu, Xing-Yue Leng, Ling-Yun Jin, Ai-Ping Jia, Meng-Fei Luo, Jian Chen
Summary: In order to achieve high N2 selectivity in the oxidation of nitrogen-containing volatile organic compounds (NVOCs), excellent catalysts with high N2 selectivity need to be developed. CeO2 modified CuO/ZSM-5 catalysts with different CeO2 addition orders were prepared for diethylamine (DEA) oxidation. The addition of CeO2 changes the geometrical and electronic states of CuO active sites in the catalyst, and the CeO2 addition order affects the Ce3+ ratio on the surface of the catalyst. The CuO/CeO2/ZSM-5 catalyst exhibits moderate high oxidation activity and the widest temperature window (oT) for high N2 selectivity, which is T99 of 230 degrees C and oT of 150 degrees C. These preliminary results provide an efficient strategy for improving catalysts employed for selective oxidation of NVOCs.
Article
Engineering, Environmental
Shahid Saqlain, Muzafar Abbas, Keon-U Lee, Gun-hee Moon, Young Dok Kim, Sang Hoon Kim
Summary: CeO2 photocatalysts with and without carbon functionalities were synthesized via a hydrothermal method. Carbon modified-CeO2 showed higher efficiency in acetaldehyde removal from air under visible light irradiation compared to bare CeO2. This enhancement was attributed to the larger surface area and reduced band gap induced by carbonaceous groups on the CeO2 surface. Optimal fraction of carbon functionalities and surface area were achieved by fine control of precursors' amount, leading to maximum acetaldehyde removal. The photocatalytic performance of CeO2 was promoted with lower acetaldehyde concentration, and the removal efficiency via photocatalysis increased in the presence of humidity. A simple strategy for catalyst regeneration was suggested, and the fixation of the sample on Ni-foam showed promise for air filtration applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Nataliya D. Shcherban, Olena A. Diyuk, Valery A. Zazhigalov, Dmitry Yu Murzin
Summary: Graphitic carbon nitride (g-C3N4) is prepared via a simple method and shows promising catalytic performance for the selective oxidation of ethanol to yield acetaldehyde. High content of C-N=C species enhances selectivity towards acetaldehyde, while increased tertiary nitrogen content leads to intensified side product formation. The material demonstrates high productivity and excellent stability without deactivation.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Engineering, Environmental
Yaeun Seo, Min Woo Lee, Hyun Jae Kim, Jin Woo Choung, ChangHo Jung, Chang Hwan Kim, Kwan-Young Lee
Summary: The study showed that doping with appropriate amounts of Ag can increase the oxygen storage capacity of the catalyst and form active Pd-0 species, leading to improved catalytic activity for the oxidation of CO and C3H6.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Haifeng Wang, Mingyue Lin, Toru Murayama, Shixiang Feng, Masatake Haruta, Hiroki Miura, Tetsuya Shishido
Summary: The study investigated the application of Ag/MnO2 catalysts in NH3-SCO reactions. Ag/MnO2-400 catalyst showed 10% NH3 conversion at 35 degrees C after being prepared at different temperatures, indicating its potential in low-temperature NH3-SCO.
Article
Chemistry, Physical
Xiaotong Jiang, Tong Ding, Zhongnan Gao, Dongyue Zhao, Ye Tian, Song Song, Xingang Li
Summary: This study reports the use of Ag catalysts supported on cobalt-aluminum hydrotalcite derivative (CoAlO) nanosheet for CO oxidation. A pre-reduction treatment on the reducible CoAlO support was employed to enhance metal-support interactions (MSI) and improve metal dispersion. The results show that the pre-reduction treatment increases the generation of active oxygen species, leading to higher catalytic activity of the Ag catalyst. Kinetic studies also reveal that the pre-reduction treatment lowers the activation energy and modifies the reaction order of oxygen.
Article
Chemistry, Physical
Richuan Rao, Hanwen Liang, Chunming Hu, Huaze Dong, Xiongzi Dong, Yongqiang Tang, Song Fang, Qiang Ling
Summary: Ag-CeO2 nanoassemblies were prepared via a simple method, with a structure comprising Ag nanoparticles and CeO2 nanoparticles. The ease of Ag-CeO2 interface oxygen activation is strongly influenced by the pyrolysis temperature. Nanoassemblies prepared at higher temperatures exhibit higher catalytic activity due to more interfacial lattice oxygen provided at lower temperatures.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Paresh H. Rana, Parimal A. Parikh
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2017)
Article
Engineering, Chemical
Paresh H. Rana, Parietal A. Parikh
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2018)
Article
Chemistry, Multidisciplinary
Srujal P. P. Rana, Paresh H. H. Rana
Summary: This study successfully achieved the one-pot synthesis of 2,5-bis(propoxymethyl)furan from 5-hydroxymethylfurfural using a mixed heterogenous catalyst. The characterization of catalyst showed that the acid sites played a vital role in the selectivity of the product, resulting in high conversion and selectivity.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Applied
Mehul R. Khokhar, Paresh H. Rana, Lakha Chopda, Manish Kumar Sinha
Summary: The catalytic epoxidation of soybean oil using HZSM-5, HY, and Hss zeolite catalysts has been achieved. The optimized conditions with HZSM-5 catalyst showed high conversion, selectivity, and yield.
INDIAN JOURNAL OF CHEMICAL TECHNOLOGY
(2022)
Article
Engineering, Chemical
Jignesh A. Parmar, Dolly R. Gandhi, Lakha Chopda, Paresh H. Rana
Summary: This study demonstrates the catalytic esterification of succinic acid with ethanol using environmentally friendly catalysts ZSM-5 and HZSM-5. The optimized reaction conditions and the conversion process from monoester to diester were investigated and observed in the study.
INDIAN CHEMICAL ENGINEER
(2021)
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)