Article
Chemistry, Multidisciplinary
Anthony Griffin, Genwei Chen, Mark Robertson, Kun Wang, Yizhi Xiang, Zhe Qiang
Summary: Conventional ordered mesoporous carbon (OMC) production requires long processing times, but this work demonstrates accelerated synthesis of OMCs using dielectric barrier discharge plasma, achieving carbonization within 15 minutes. The use of plasma enables faster production rates and does not require additional substrates within the OMC precursor systems.
Article
Engineering, Environmental
Xin Yang, En Yang, Bo Hu, Jiahui Yan, Fangna Shangguan, Qingqing Hao, Huiyong Chen, Jianbo Zhang, Xiaoxun Ma
Summary: This paper proposes a method for the confined growth of Ni(OH)(2) nanosheets within three dimensionally ordered mesoporous carbon (3DOMC) by steam-assisted crystallization. The resulting composite material exhibits high crystallinity and can be reduced to highly segregative Ni nanoparticles. The Ni/3DOMC catalyst shows superior catalytic performance in methane decomposition, with higher methane conversion and hydrogen output rate, as well as better catalytic stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Energy & Fuels
Prem Sagar Shukla, Anant Agrawal, Anurag Gaur, G. D. Varma
Summary: MnCo2O4@MoS2 (MCOS) nanocomposites synthesized through co-precipitation process exhibit significant enhancement in electrochemical characteristics, attributed to its larger specific surface area and mesoporous distribution. MCOS nanocomposite as a single electrode shows larger specific capacitances and good rate capability, as well as excellent cycling stability even at high current density. An asymmetric supercapacitor device fabricated with MCOS20 nanocomposite as cathode and commercial activated carbon as anode demonstrates the highest specific energy density and power density, along with excellent stability in KOH gel electrolyte.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Chemistry, Multidisciplinary
Pengpeng Qiu, Tao Zhao, Yuan Fang, Guihua Zhu, Xiaohang Zhu, Jianping Yang, Xiaopeng Li, Wan Jiang, Lianjun Wang, Wei Luo
Summary: The paper discusses recent achievements in the preparation of 2D ordered mesoporous materials by combining single micelle assembly strategy with 2D bottom-up patterning techniques, and highlights their potential applications in electrochemical energy conversion and storage devices.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Environmental Sciences
Shihai Xu, Chuncai Zhou, Hongxia Fang, Wenrui Zhu, Jiaqian Shi, Guijian Liu
Summary: This study successfully synthesized mesoporous silica from solid wastes, specifically biomass ash, using the alkali fusion method. The prepared mesoporous silica exhibited high surface area and ordered pore structure, and showed excellent CO2 adsorption performance. After multiple cycles of adsorption, the material maintained its adsorption properties and exhibited high selectivity towards CO2 adsorption.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Applied
Gamze Gunduz-Meric
Summary: In this study, Zr@KIT-6 silicas were successfully synthesized using hydrothermal method, and their characteristics were analyzed. The results showed that Zr@KIT-6 silicas had high specific surface area and exhibited good activity and stability in H2O2 decomposition reaction.
JOURNAL OF POROUS MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Xiaoqi Wang, Mo Qiu, Yiwei Tang, Jirui Yang, Feng Shen, Xinhua Qi, Yingliang Yu
Summary: By synthesizing sulfonated lignin-derived ordered mesoporous carbon solid acid using the EISA method, a high xylose conversion rate and furfural yield were achieved. The catalyst showed excellent stability and reusability, making it suitable for catalytic conversion of xylan.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Review
Electrochemistry
Jieqiong Qin, Zhi Yang, Feifei Xing, Liangzhu Zhang, Hongtao Zhang, Zhong-Shuai Wu
Summary: Two-dimensional mesoporous materials (2DMMs) combine the merits of 2D materials and mesoporous materials, offering a promising solution for high-performance electrode/catalyst materials in energy storage and conversion devices. This review summarizes the recent advances in 2DMMs for ESCDs, including their structural advantages, chemical synthesis strategies, and applications in supercapacitors, rechargeable batteries, and electrocatalysis.
ELECTROCHEMICAL ENERGY REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Thangaian Kesavan, Raja Murugan, Kothandaraman Ramanujam
Summary: In this study, nitrogen and phosphorous co-doped ordered mesoporous carbon (NPMC) was successfully synthesized and its charge storage capacity in aqueous and non-aqueous electrolytes was explored. The results showed that NPMC exhibited high specific capacitance and remarkable capacitance retention in water medium, and impressive energy density and power density in non-aqueous medium.
JOURNAL OF MATERIALS SCIENCE
(2022)
Review
Energy & Fuels
Zhuo Li, Liying Liu, Zhe Wang, Peng Gao, Gang Kevin Li
Summary: This paper reviews the recent methods used to synthesize mesoporous materials and elaborates on the current status of their applications in the fields of biomedicine, environmental and energy, electrochemical energy storage, and gas separation. It highlights the importance and potential of mesoporous materials in chemical research. Finally, it briefly discusses the technical issues and future directions in the synthesis and application of mesoporous materials.
Article
Engineering, Environmental
Zhiying Liu, Xiaohui Sun, Yulin Li, Zhuyin Sui, Xiufeng Xu
Summary: The ordered mesoporous Al2O3 material was used as a support to prepare CeO2-Co3O4 catalysts for the N2O-assisted oxidative dehydrogenation of ethylbenzene. The optimized catalyst showed excellent catalytic performance and regeneration property.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Ezzatollah Shamsaei, Felipe Basquiroto de Souza, Amirsina Fouladi, Kwesi Sagoe-Crentsil, Wenhui Duan
Summary: In this study, a mesoporous composite with high latent heat capacity, stable structure, and efficient thermal response was designed for thermal energy storage in green building constructions. The composite demonstrated high thermal storage efficiency and sustainability for building constructions.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Environmental
Ye Li, Xinping Wang, Chuan Shi
Summary: A series of Ba-Ce-Cu catalysts were prepared by the citric acid method and used for N2O decomposition. The doping effects of Ba and Ce on CuO were studied. It was found that the activity and tolerance of the catalyst to impurity gases can be effectively modified by the doping components. Ba0.2Cu displayed high activity due to the stabilizing effect of Ba on the active Cu+ species, while Ba0.2Ce0.5Cu exhibited higher catalytic activity and strong tolerance to NO, thanks to the synergistic effect of Ba and Ce and the ability of CeO2 to remove NOx species.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Guozheng Zhao, Hui Liang, Hongzhu Xu, Changbo Li, Qingwei Tan, Daihang Zhang
Summary: Ordered mesoporous Ag/CeO2 catalysts were successfully synthesized and characterized in this study. The 0.4-Ag/CeO2 catalyst showed the best catalytic performance in the degradation of organic matter in acrylonitrile wastewater, with a COD removal rate of 94.6%. The catalytic activity of Ag/CeO2 is attributed to the combination of CeO2's Lewis acid-base position and the redox cycle of Ce3+/Ce4+.
Article
Chemistry, Physical
Kristina Denisova, Alexander A. Ilyin, Ruslan Rumyantsev, Julia Sakharova, Alexander P. Ilyin, Natalya Gordina
Summary: The highest catalytic activity of cobalt ferrite nanoparticles in the reaction of nitrous oxide (N2O) decomposition was reported to be 98.1% at 475 degrees Celsius, with the catalysts' structure and catalytic properties correlated and characterized through various tests including X-ray diffraction, thermal analysis, and scanning electron microscopy.
Article
Physics, Multidisciplinary
Kejing Ran, Jinghui Wang, Song Bao, Zhengwei Cai, Yanyan Shangguan, Zhen Ma, Wei Wang, Zhao-Yang Dong, Aermak, A. Schneidewind, Siqin Meng, Zhilun Lu, Shun-Li Yu, Jian-Xin Li, Jinsheng Wen
Summary: This article presents the first polarized inelastic neutron scattering study on alpha-RuCl3 single crystals, revealing the existence of continuous magnetic excitations around the Gamma point, providing evidence for fractional excitations originating from the Kitaev quantum-spin-liquid phase, and supporting the validity of the K-Gamma model.
CHINESE PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Junxiao Chen, Xue Fang, Zhouhong Ren, Weiye Qu, Xiaolei Hu, Zhen Ma, Liwei Chen, Xi Liu, Yaxin Chen, Xingfu Tang
Summary: The development of a novel catalyst Mo-1/TiO2 enables the decomposition of ABS at low temperatures, effectively addressing the issue of SO2 deactivation in SCR catalysts. This provides a new approach to controlling NOx emissions from industrial boilers.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Shuai Cheng, Tao Meng, Dongsen Mao, Xiaoming Guo, Jun Yu, Zhen Ma
Summary: Ni-modified Ag/SiO2 catalysts exhibit enhanced catalytic activity and stability due to the improved dispersion of active Ag species and inhibition of Ag particle growth by the presence of Ni species.
Article
Physics, Multidisciplinary
Jie Wei, Qinfeng Jiang, Xiaorong Luo, Junyue Huang, Kemeng Yang, Zhen Ma, Jian Fang, Fei Yang
Summary: In this study, a novel SiC double-trench metal-oxide-semiconductor field effect transistor (MOSFET) with integrated MOS-channel diode was proposed and investigated through Sentaurus TCAD simulation. The new SiC MOSFET showed improved performance in terms of reducing the turn-on voltage and suppressing bipolar degradation phenomena. It also exhibited lower reverse recovery charge and reduced reverse recovery loss compared to the traditional SiC double-trench MOSFET. Additionally, the new MOSFET maintained superior forward conduction and blocking performance, with improved breakdown voltage and R(ON,sp) compared to the trench gate MOSFET with planar integrated SBD.
Article
Energy & Fuels
Yanmin Liu, Dongsen Mao, Jun Yu, Xiaoming Guo, Zhen Ma
Summary: This paper investigates the catalytic performance of CuO-CeO2 catalyst in low-temperature CO oxidation under moisture condition. It is found that activation at 550 degrees C enhances the interaction between CuO and CeO2, leading to improved catalytic activity and moisture resistance.
Article
Engineering, Environmental
Weiye Qu, Xue Fang, Zhouhong Ren, Junxiao Chen, Xi Liu, Zhen Ma, Xingfu Tang
Summary: By introducing an appropriate amount of O3 into the simulated stack gas, the SCR activity at low temperatures (<250 degrees C) can be significantly enhanced. The introduction of O3 allows SCR to proceed along a NH4NO3-mediated Langmuir-Hinshelwood model, leading to the enhancement of activity at low temperatures.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Rory C. McNulty, Kieran D. Jones, Conrad Holc, Jack W. Jordan, Peter G. Bruce, Darren A. Walsh, Graham N. Newton, Hon Wai Lam, Lee R. Johnson
Summary: Understanding and eliminating degradation of the electrolyte solution is crucial in developing high energy density lithium-air batteries. The use of acetonitrile provides similar stability to current glyme ethers, but the mechanism for its degradation is unknown. By studying the degradation of acetonitrile in the lithium-air battery, a correlation between H2O concentration and deviation from the ideal electron/oxygen ratio is revealed. Acetamide is identified as the major degradation product, and a new degradation pathway involving lithium hydroperoxide is proposed.
ADVANCED ENERGY MATERIALS
(2023)
Article
Physics, Multidisciplinary
Zhen Ma, Wei-Jin Chen, Yuntian Chen, Jin-Hua Gao, X. C. Xie
Summary: We have discovered a new wave localization mechanism in a periodic wave system, which is different from Anderson localization and flat band lattices, and can produce a novel type of flat band. By designing a special periodic confinement potential, we have demonstrated complete electron localization in an open waveguide. This phenomenon, called flat band localization (FBL), is explained by the concept of self-localized orbitals, with each unit cell of the waveguide behaving like an artificial atom.
FRONTIERS OF PHYSICS
(2023)
Article
Chemistry, Physical
Yasaman Shirazi Moghadam, Yang Hu, Abdel El Kharbachi, Stephanie Belin, Thomas Diemant, Jun Chen, Robert A. House, Peter G. Bruce, Maximilian Fichtner
Summary: In this work, synchrotron operando X-ray absorption spectroscopy (XAS) was used to study the chemical and structural evolution of Mn and Ti in Li-rich disordered rocksalt (DRS) cathode compounds for Li-ion batteries. The results provide insights into the development of Mn double-redox reactions in the DRS cathodes from initial cycles to prolonged cycling and elucidate the impacts of the reduced Mn redox activity and the increased local ordering on the cycling stability.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Hyun-Wook Lee, Ja-Yeong Kim, Joo-Eun Kim, Yun-Joo Jo, Daniel Dewar, Sixie Yang, Xiangwen Gao, Peter G. Bruce, Won-Jin Kwak
Summary: The use of redox mediators (RMs) to decompose Li2O2 is an effective method to improve the efficiency and cyclability of lithium-oxygen batteries. However, the reactivity of different RMs with singlet oxygen (O-1(2)) and its impact on the electrochemical behavior of RMs have not been investigated. This study categorizes the reactivity of RMs with O-1(2) and examines its effects on the Li2O2 decomposition kinetics of RMs.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Max Jenkins, Daniel Dewar, Tammy Nimmo, Chloe Chau, Xiangwen Gao, Peter G. Bruce
Summary: One of the important challenges in long cycle life Li-O-2 batteries is the degradation of solvents, even stable ethers like CH3O(CH2CH2O)CH3 decompose to form Li2CO3. The accumulation of Li2CO3 in the pores of gas diffusion electrode during cycling leads to polarization and capacity fading. This work investigates the build-up and distribution of Li2CO3 in the porous gas diffusion electrode during cycling and its connection to cell failure. The study also demonstrates that the removal of Li2CO3 by a redox mediator can partially restore cell performance and extend the cycle life of Li-O(2) battery.
FARADAY DISCUSSIONS
(2023)
Article
Chemistry, Physical
Dongrun Xu, Weiye Qu, Junhong Liu, Junxiao Chen, Xue Fang, Liwei Chen, Zhen Ma, Xi Liu, Xingfu Tang, Yaxin Chen
Summary: This study provides evidence that dinuclear vanadium-tungsten sites are the most active catalytic sites in conventional V2O5-WO3/TiO2 SCR catalysts, contrary to the prevailing view. These sites have stronger acidity and higher concentration of vanadium 3d electrons, leading to improved NH3 adsorption and O-2 activation in SCR. This finding settles a long-standing dispute and has important implications for understanding SCR mechanisms and designing better catalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Dongrun Xu, Weiye Qu, Xiao Gu, Meiyu Li, Rui Liu, Yangyang Dong, Zhen Ma, Yaxin Chen, Xingfu Tang
Summary: This study proposes a frontier band orbital descriptor that rationalizes catalytic activity trends over a series of perovskite oxides, providing a promising strategy for designing optimal semiconducting metal oxide catalysts.
Article
Chemistry, Multidisciplinary
Rui Liu, Weiye Qu, Xiaolei Hu, Junxiao Chen, Yangyang Dong, Dongrun Xu, Jing Liu, Zhen Ma, Xingfu Tang
Summary: The valence state of single Au atoms anchored on CeO2(100) can be tuned to enhance the CO oxidation activity of Au-1/CeO2(100) by one order of magnitude. This work is significant for understanding reaction mechanisms and designing high-performance catalysts.
CHEMICAL COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Su Liu, Lin Zhang, Haibo Zhou, Zhen Ma, Yangdong Wang
Summary: The type of surfactant used significantly affects the properties and catalytic performance of Mo-Co-K sulfide catalysts, with the cationic surfactant CTAB enhancing the activity of the catalyst in CO2 hydrogenation reaction.
CHEMICAL ENGINEERING JOURNAL ADVANCES
(2022)
