Article
Chemistry, Inorganic & Nuclear
Weiwei Jie, Yumeng Liu, Wenyong Deng, Qian Liu, Mei Qiu, Shuwu Liu, Jiaqi Hu, Lei Gong
Summary: The one-dimensional CeO2 nanocrystals were successfully synthesized by hydrothermal methods and supported CuO for CO preferential oxidation. The strong interaction between CuO and CeO2 nanocrystals greatly enhances the activity of CuCeO catalysts, with CuCeO-T displaying the best catalytic activity for CO oxidation, reaching 100% CO conversion at 100℃ with 89% O2 selectivity.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Srisin Eaimsumang, Nuwong Chollacoop, Apanee Luengnaruemitchai, Stuart H. Taylor
Summary: This study demonstrates a simple hydrothermal synthesis approach for preparing CeO2-supported gold (Au) catalysts, which exhibit enhanced catalytic performance in oxidation reactions when the reducibility of CeO2 support increases and the number of adsorbed peroxide species on the support increases due to Au addition.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Jingchen Zhao, Hongmei Li, Yongtai Chen, Ming Xie, Yanan Bi
Summary: Template-free reaction systems are essential for regulating and efficiently synthesizing 1D SnO2 nanostructures. In this study, 1D SnO2 nanostructures were prepared using the hydrothermal method with SnCl4·5H2O as the tin source.Characterization using various analytical methods confirmed the formation of mixed morphology 1D SnO2 nanostructures consisting of nanorods and nanowires. The addition of polyvinylpyrrolidone and seed crystal decreased the acquisition time of the 1D SnO2 nanostructures from 48 to 12 hours.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Physical
Hui Yang, Lu Jia, Jun Haraguchi, Yue Wang, Bin Xu, Qitao Zhang, Zhaodong Nan, Ming Zhang, Teruhisa Ohno
Summary: In this work, nitrogen and sulfur co-doped ceria with a regular nanorod morphology was synthesized and exhibited significantly improved photooxidation performance compared to undoped ceria. The doping of nitrogen and sulfur resulted in the generation of new impurity level states and reduction of the bandgap of ceria. The increased concentration of oxygen vacancies formed a doping transition state, which acted as an effective electron capture center and mediated interfacial charge separation, leading to enhanced photocatalytic performance.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Zhiqing Cui, Xin Wang, Ran Li, Long Kuai, Caihong Fang
Summary: A feasible one-pot approach was developed to prepare Au core/CeO2-(Au nanoclusters) nanostructures without surfactants, which exhibited significantly improved activity and stability in CO conversion. The special architecture of Au/CeO2-Au provided abundant exposed Au atoms and oxygen vacancies, ensuring effective reactant transfer and preventing aggregation or further growth during catalysis. The conversion remained at 100% even after 300 hours and 20 cycles, making this work a new pathway for designing effective catalysts with high activity and stability, especially for small-sized metal nanoclusters.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Venkatachalam Vinothkumar, Chelliah Koventhan, Shen-Ming Chen
Summary: The research focuses on developing an electrochemical sensor for highly sensitive detection of trifluoperazine using Ni@CeO2 nanoparticles with different calcination temperatures. The sensor demonstrated low detection limit, broad linear response, high sensitivity, excellent selectivity, repeatability, and stability, showing great potential for practical applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Dipyaman Mohanta, Shaswat Vikram Gupta, Vishal Gadore, Saurav Paul, Mohammad Ahmaruzzaman
Summary: In this paper, a novel one-step synthesis method for SnO2 nanoparticle-CeO2 nanorod sensing material is presented. The bifunctional utility of this sensing material for room-temperature sensing of CO gas and low-concentration optosensing of arsenic has been thoroughly investigated. The synthesized material was characterized using sophisticated analytical techniques. The CeO2-SnO2 nanohybrid-based sensor showed a strong response to CO gas at room temperature and exhibited fast response and recovery times under low concentration of CO gas. The nanohybrid sensor also showed excellent low-concentration sensing behavior for arsenic in water.
Article
Materials Science, Ceramics
Fan-Jian Meng, Xing -Min Guo
Summary: A Co/Au bimetal modified SnO2-In2O3 nanocomposite was prepared and used to fabricate MOS gas sensors to improve the sensitivity and selectivity of metal oxide semiconductor (MOS) materials to CO. The results showed that the modified nanocomposite exhibited significantly higher response towards CO, rapid response time, and good selectivity compared to pristine SnO2. The enhancement mechanism was revealed based on XPS, UPS, and UV-Vis DRS tests, showing increased oxygen vacancy content and improved material sensitization.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Xia Zhang, Wenzhi Li, Zean Zhou, Kun Chen, Mingwei Wu, Liang Yuan
Summary: The study investigated the effects of different morphologies of CeO2 on the catalytic efficiency of Pd/CeO2, finding that rod-like CeO2 exhibited excellent performance when loaded with Pd in CO oxidation reaction. Moreover, the highly dispersed Pd on the surface of CeO2 was found to increase the concentration of Ce3+, activate lattice oxygen, and promote the generation of active centers, thereby enhancing the reaction activity.
MOLECULAR CATALYSIS
(2021)
Article
Nanoscience & Nanotechnology
Junjie Chen, Hien N. Pham, Tala Mon, Todd J. Toops, Abhaya K. Datye, Zhenglong Li, Eleni A. Kyriakidou
Summary: Catalytic oxidation of CH4 over nonprecious Ni/CeO2 catalysts with different CeO2 support morphologies (nanoparticles (P), rods (R), cubes (C)) and synthetic procedures (precipitation, sol-gel (SG)) was studied. The relationship among CeO2 morphologies, redox properties, surface areas, and CH4 oxidation activity was established. CeO2-R support showed higher oxygen vacancies, improved OSC and CH4 oxidation activity compared to CeO2-P and CeO2-C supports. The same activity pattern was observed for Ni containing catalysts (Ni/CeO2-R > Ni/CeO2-P > Ni/CeO2-C). Increasing CeO2 surface area by sol-gel synthesis method (CeO2-SG) improved the CH4 oxidation performance of CeO2-SG and Ni/CeO2-SG compared to CeO2-R and Ni/CeO2-R, respectively. All studied Ni/CeO2 nanocatalysts showed improved hydrothermal stability compared to conventional Pd/Al2O3.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Osama Saber, Sajid Ali Ansari, Aya Osama, Mostafa Osama
Summary: Layered double hydroxides (LDHs) were modified into one-dimensional (1D) nanostructures for high-performance supercapacitors applications. Silicon was inserted into the nanolayers of Co-LDHs to produce Si/Co LDHs nanofibers. The change in morphology from nanoparticles or plates to nanofibers improved the specific capacitance of Si/Co LDHs.
Article
Chemistry, Multidisciplinary
Jingxia Yang, Nevzat Yigit, Jury Moller, Gunther Rupprechter
Summary: By synthesizing Co3O4-modified CeO2 via different sol-gel routes, three different nanocomposite morphologies were obtained: CeO2-supported Co3O4 layers, intermixed oxides, and homogeneously dispersed Co. The CeO2-supported Co3O4 layers exhibited the best performance in CO oxidation, reducing the light-off temperature by about 200 degrees C. Intermixed oxides and Co-doped CeO2 suffered from lower dispersion and organic residues.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Xiaoxiao Qin, Min Chen, Xueyan Chen, Jianghao Zhang, Xiaoxin Wang, Jinhou Fang, Changbin Zhang
Summary: This study investigates the metal-support interaction and its effects on the activation of oxygen species in Ru supported on CeO2 catalysts with different morphologies. The results demonstrate that different Ru-CeO2 interactions lead to distinct active oxygen species, which in turn affect the catalytic activity.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Tingting Chang, Zhimiao Wang, Hualiang An, Fang Li, Wei Xue, Yanji Wang
Summary: In this study, CeO2 spherical-like aggregate of nanoplates (CeO2-S) was prepared and used as a catalyst for formaldehyde oxidation. CeO2-S exhibited excellent activity due to its abundant surface hydroxyl and oxygen groups. Formaldehyde was oxidized to dioxymethylene and formates, and further oxidation of formates produced CO2 and H2O. CO2 reacted with surface hydroxy groups to form carbonate species, which accumulated on the catalyst surface, leading to catalyst deactivation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Olga A. Stonkus, Andrey V. V. Zadesenets, Elena M. Slavinskaya, Andrey I. Stadnichenko, Valery A. Svetlichnyi, Yury V. V. Shubin, Sergey V. V. Korenev, Andrei I. Boronin
Summary: 1%Pd/CeO2-SnO2 catalysts with varying Ce/Sn ratio were synthesized and their thermal stability and activity were studied. The catalysts with Ce/Sn < 3/1 exhibited high thermal stability and low-temperature activity. The catalyst with high tin content (Ce/Sn = 1/3) showed good activity in CH4 oxidation.
CATALYSIS COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Ting Zhang, Yandong Ma, Baibiao Huang, Ying Dai
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Chemistry, Physical
Zhenhua Liu, Ying Dai, Zhaoke Zheng, Baibiao Huang
CATALYSIS COMMUNICATIONS
(2019)
Article
Chemistry, Physical
Ruoqian Zhang, Yuanyuan Liu, Yang An, Zeyan Wang, Peng Wang, Zhaoke Zhen, Xiaoyan Qin, Xiaoyang Zhang, Ying Dai, Baibiao Huang
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2019)
Article
Chemistry, Physical
Pei Zhao, Yan Liang, Yandong Ma, Baibiao Huang, Ying Dai
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Physics, Applied
Yuanyuan Wang, Wei Wei, Hao Wang, Baibiao Huang, Ying Dai
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2019)
Article
Chemistry, Inorganic & Nuclear
Ruoqian Zhang, Yuanyuan Liu, Jiajia Wang, Zeyan Wang, Peng Wang, Zhaoke Zheng, Xiaoyan Qin, Xiaoyang Zhang, Ying Dai, Baibiao Huang
JOURNAL OF SOLID STATE CHEMISTRY
(2019)
Article
Materials Science, Multidisciplinary
Yanru Dong, Wei Wei, Baibiao Huang, Ying Dai
MATERIALS RESEARCH EXPRESS
(2019)
Article
Chemistry, Physical
Hailong Zheng, Zaiyong Jiang, Huishan Zhai, Zhaoke Zheng, Peng Wang, Zeyan Wang, Yuanyuan Liu, Xiaoyan Qin, Xiaoyang Zhang, Baibiao Huang
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
Engineering, Environmental
Huining Huang, Huiliang Li, Zeyan Wang, Peng Wang, Zhaoke Zheng, Yuanyuan Liu, Ying Dai, Yingjie Li, Baibiao Huang
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Chemistry, Analytical
Kaili Zhu, Xinxin Luan, Katarzyna Matras-Postolek, Ping Yang
Summary: T-2H MoS2 was successfully grown on g-C3N4 nanosheets through a convenient two-step calcination and solvothermal process, forming parallel 2D/2D heterostructures. The resulting heterostructures exhibited enhanced photo- and electro-chemical activities, with the 2.5%MCN sample showing excellent photocatalytic performance.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Electrochemistry
Cong Xie, Xiao Zhang, Katarzyna Matras-Postolek, Ping Yang
Summary: By depositing Ni(OH)(2) nanosheets on the surface of FeCo/C nanocubes to create a hierarchical heterostructure, a new type of non-noble metal catalyst FeCo/C@Ni(OH)(2) is developed with enhanced OER activity, lower initial overpotential, and improved cycle stability.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Adam Zaba, Svitlana Sovinska, Tetiana Kirish, Adam Wegrzynowicz, Katarzyna Matras-Postolek
Summary: Zinc sulfide (ZnS) nanowires doped with manganese and undoped nanocrystals were synthesized using a microwave radiation process with ethylenediamine and hydrazine as stabilizers. The Mn-doped ZnS nanowires exhibit UV and visible light absorption, and the photocatalytic degradation process of rhodamine B was significantly influenced by the doping and nanocrystal stabilizer.
Article
Chemistry, Multidisciplinary
Ying Xie, Fei Liang, Bo Zhang, Binghui Ge, Haohai Yu, Zheshuai Lin, Zeyan Wang, Huaijin Zhang, Baibiao Huang, Jiyang Wang
Article
Chemistry, Physical
Xizhuang Liang, Peng Wang, Baibiao Huang, Qianqian Zhang, Zeyan Wang, Yuanyuan Liu, Zhaoke Zheng, Xiaoyan Qin, Xiaoyang Zhang, Ying Dai
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Chemistry, Physical
Xingshuai Lv, Wei Wei, Baibiao Huang, Ying Dai
JOURNAL OF MATERIALS CHEMISTRY A
(2019)