Article
Energy & Fuels
Ya Song, Jiabao Bai, Shenqin Jiang, Huawei Yang, Lixia Yang, Donglei Wei, Liangjiu Bai, Wenxiang Wang, Ying Liang, Hou Chen
Summary: In this study, CoFeMo mixed metal oxides (MMOs) were successfully synthesized as a robust and durable catalyst for aerobic oxidative desulfurization (AODS) of fuel. The catalytic performance can be regulated by altering the intercalation content of MoO42-, and the optimal catalyst efficiently converts various thiophenic compounds into sulfones at 100 degrees C, showing excellent reusability. This research provides a feasible method to synthesize highly efficient MMO catalysts for AODS of fuels.
Article
Chemistry, Physical
Rooh Ullah, Mustafa Tuzen, Saif Ullah, Muhammad Haroon, Rozina Khattak, Tawfik A. Saleh
Summary: A series of novel mixed metal oxides (MOs) were prepared as supports for Ni/MOs using the double hydrolysis technique. The desulfurization study showed that the 10%NiZnO-Al2O3 adsorbent exhibited superior desulfurization performance with a breakthrough point of 10 ppm in model gasoline. The superior desulfurization performance was attributed to its higher Lewis and Lewis/Bronsted acid site ratio, higher surface area, larger pore size distribution, and lesser amount of inactive ZnAl2O4 spinel.
SURFACES AND INTERFACES
(2023)
Article
Energy & Fuels
Zijia Liu, Yingnan Zhang, Jiabao Bai, Huawei Yang, Lixia Yang, Liangjiu Bai, Donglei Wei, Wenxiang Wang, Ying Liang, Hou Chen
Summary: This work introduces a highly efficient and durable catalyst, MoOx nanoclusters decorated on spinel-type porous metal oxide nanosheets, for aerobic oxidative desulfurization reactions. The electronic structure of the MoOx nanoclusters can be modulated by the metal oxide carriers, with Mo(V) species identified as the active center. The catalyst MoOx/CuCo2O4, with air as the oxidant source under atmospheric pressure, achieves the aerobic transformation of dibenzothiophene at 90°C with a turnover frequency of 16.2 h-1 and shows no performance attenuation or structural deformation in six successive reuses.
Article
Energy & Fuels
E. Eseva, A. Dunko, S. Latypova, O. Grafov, K. Cherednichenko, M. V. Motyakin, A. Anisimov, A. Akopyan
Summary: For the first time, cobalt-manganese spinel structure catalysts have been effectively used for the aerobic oxidation of sulfur-containing compounds, resulting in highly active catalysts. The high mobility of oxygen in the spinel structure has been shown to contribute to efficient oxidation, and the catalysts demonstrate good stability.
Article
Chemistry, Physical
Peiqi Chu, Saifei Wang, Shiguang Zhao, Yi Zhang, Yanan Guan, Jiguang Deng, Li'an Hou, Erhong Duan
Summary: The novel La-B-O-C composites were fabricated as catalysts for methane catalytic combustion at low temperature. Three metal ions (Co, Mn, Fe) were selected for experiment based on the effect of the newly formed C-O bond on B-site ions as active sites. The study showed that different metal ions had varying effects on the physicochemical properties and catalytic performance of the composites, with LC-C and LF-C showing superior performance compared to unmodified catalysts, while LM-C showed a slight decrease in performance. Sacrifice of Mn4+ in LM-C was found to weaken the catalytic activity. Mechanistic differences for different B-site elements in the La-B-O-C were also observed.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Gan Qu, Chuntian Qiu, Jun Wang, Jiewen Tan, Shuangfeng Jia, Zhesheng Chen, Jean-Pascal Rueff, Wesley Guangyuan Zheng, Chenliang Su, Bingbing Tian
Summary: This study developed phase-dependent Mo-V oxide cathodes for Zn2+ storage in ZIBs by constructing Mo-V oxides with different phase structures. Through phase engineering, high specific capacity and excellent cyclic stability were achieved with orth-MoVO as the cathode. The proposed phase engineering strategy provides a new approach toward cathode design in ZIBs, offering important insights for the development of ZIB technology.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhi-Yan Guo, Chen-Xuan Li, Miao Gao, Xiao Han, Ying-Jie Zhang, Wen-Jun Zhang, Wen-Wei Li
Summary: The covalency of TM-O bonds plays a critical role in governing the intrinsic catalytic activity of bimetallic spinel oxides, enhancing electron transfer and favoring interactions with PMS. By balancing PMS adsorption and metal reduction reactions, remarkable catalytic activities for PMS activation and pollutant degradation can be achieved, leading to the development of more active and robust metal oxide catalysts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Biochemistry & Molecular Biology
Xinxiang Cao, Ruijian Tong, Jingyuan Wang, Lan Zhang, Yulan Wang, Yan Lou, Xiaomeng Wang
Summary: Flower-like cobalt-molybdenum mixed-oxide microspheres (CoMo-FMs) with a hierarchical structure were successfully synthesized. The CoMo-FMs were assembled from ultrathin mesoporous nanosheets, which contributed to a large pore volume and a massive surface area. The synthesized CoMo-FMs demonstrated excellent catalytic performance in the aerobic oxidative desulfurization (AODS) of fuel.
Article
Engineering, Environmental
Argam Akopyan, Ekaterina A. Eseva, Raman A. Mnatsakanyan, David A. Davtyan, Maxim O. Lukashov, Ivan S. Levin, Alexey A. Sadovnikov, Alexander Anisimov, Anna M. Terzyan, Artur M. Agoyan, Eduard Karakhanov
Summary: Nanosized mixed tungsten-iron carbide (FeWC) was synthesized by microwave irradiation and used as an efficient catalyst for aerobic oxidative desulfurization. The catalyst showed high activity for dibenzothiophene oxidation under optimized conditions. The possible mechanisms for oxygen activation and substrate oxidation were discussed. The presence of FeWC in straight-run gasoline resulted in a significant reduction in sulfur content.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Zhuang Zeng, Siyu Kuang, Zhen-Feng Huang, Xiaoyi Chen, Yaqiong Su, Yue Wang, Sheng Zhang, Xinbin Ma
Summary: This study focuses on the design and synthesis of highly efficient electrocatalysts for oxygen evolution by tuning the d-band center of Fe-based inverse spinel oxides. The ternary Mn0.5Co0.5Fe2O4 nanocubes exhibit superior oxygen evolution activity compared to the benchmark RuO2. The optimized d-band center provides a balanced adsorption strength of intermediate *OOH on Mn0.5Co0.5Fe2O4 nanocubes, as confirmed by experimental and theoretical calculations.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Jixing Liu, Chang Deng, Xiangqi Liu, Shijia Shao, Peng Zheng, Linlin Chen, Peiwen Wu, Huaming Li, Hongbing Ji, Wenshuai Zhu
Summary: A single-site Mo-supported HEPO LaMn0.2Fe0.2Co0.2Ni0.2Cu0.2O3 catalyst with abundant mesoporous structures was prepared, exhibiting stable recycling and exceptional catalytic activity for the oxidation of DBT and its derivatives. This finding expands the application of single-atom Mo-supported HEPO materials into the field of ultra-deep oxidative desulfurization.
INORGANIC CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Lingxia Zheng, Yujuan Zhao, Zhenyu Bao, Penghui Xu, Yi Jia, Yongzhi Wang, Pengju Yang, Xiaowei Shi, Qi Wu, Huajun Zheng
Summary: This study develops unique Mo-doped cobalt oxide nanosheet arrays as high-efficiency, low-cost electrocatalysts for electrochemical water oxidation in alkaline media. Metal doping and vacancy engineering strategies are employed to increase active sites and enhance reaction kinetics. The optimized catalyst MoCoO-3 exhibits significantly lower overpotential and superior performance compared to benchmark catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Huawei Yang, Mingchuan Luo, Shiyu Lu, Qinghua Zhang, Yuguang Chao, Fan Lv, Lili Zhu, Liangjiu Bai, Lixia Yang, Wenxiang Wang, Donglei Wei, Ying Liang, Lin Gu, Hou Chen, Shaojun Guo
Summary: A sub-nanometer-thick cobalt hydroxide nanosheet hosting an atomic molybdenum catalyst is reported for efficient aerobic oxidation desulfurization. The catalyst activates the reaction at low temperature and achieves a turnover frequency two orders of magnitude higher than state-of-the-art catalysts.
Article
Engineering, Chemical
Jun Xiong, Jiayu Li, Haoxue Huang, Ming Zhang, Wenshuai Zhu, Jiadong Zhou, Huaming Li, Jun Di
Summary: Developing catalyst with abundant surface active sites is crucial for efficient catalytic oxidative desulfurization. This study fabricates Mo doped W18O49 ultrathin nanowires to provide plentiful low coordinated metal atoms and oxygen vacancies, resulting in improved oxidative desulfurization performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Xianbin Meng, Binbin Yuan, Yiwen Liu, Zhiqiang Zhao, Kai Li, Yuqing Lin
Summary: In this study, amorphous Fe-Mo-O/NF was designed as an effective and durable catalyst for oxygen evolution reaction (OER) in 1.0 M KOH aqueous solution. The OER catalytic performance of amorphous Fe-Mo-O/NF was significantly improved compared to Fe2O3/NF. This improvement can be attributed to the inherent OER catalytic activity of transition-metal Fe-based oxides, the increased number of active sites due to the introduction of Mo element, the synergy effect between metals enhancing the adsorption of oxygen intermediates, and the tight bonding of amorphous Fe-Mo-O nanostructures to the conductive substrate ensuring rapid electron transport and high stability.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Jiabao Bai, Yingnan Zhang, Hou Chen, Lixia Yang, Liangjiu Bai, Donglei Wei, Xinxiang Cao, Ying Liang, Huawei Yang
Summary: Researchers have found that two-dimensional vanadium carbide MXene can serve as an efficient and stable catalyst for the oxidation of sulfur-containing compounds at low temperature. The catalyst has high mass specific activity, can convert various sulfides under mild conditions, and remains active after multiple cycles.
Article
Materials Science, Paper & Wood
Chunyu Li, Zehua Hou, Pan Li, Guomin Zhang, Liangjiu Bai, Wenxiang Wang, Hou Chen, Huawei Yang, Lixia Yang
Summary: In this study, nanocomposite hydrogels with excellent mechanical properties and self-healing ability were prepared by grafting poly(glycidyl methacrylate) onto the surface of cellulose nanocrystals and using biomass phytic acid as an assistant.
Article
Chemistry, Multidisciplinary
Qiqi Li, Yingnan Zhang, Ya Song, Huawei Yang, Lixia Yang, Liangjiu Bai, Donglei Wei, Wenxiang Wang, Ying Liang, Hou Chen
Summary: This study proposes a facile method for preparing ultra-high rate biomass carbon with large specific surface area and high degree of graphitization through hydrothermal carbonization and graphitization activation. The material exhibits excellent performance in terms of specific capacitance and energy density, and maintains a high capacitance retention rate after multiple cycles.
Article
Biochemistry & Molecular Biology
Lixuan Xiao, Yaning Hou, Zhiyan Xue, Liangjiu Bai, Wenxiang Wang, Hou Chen, Huawei Yang, Lixia Yang, Donglei Wei
Summary: Nowadays, stretchable self-healing hydrogels designed by biomass-based materials have gained significant attention in fields like wound healing, health monitoring, and electronic skin. This study demonstrates the successful cross-linking of soy protein isolate (SPI) with nanoparticles (SPI NPs) using Genipin, resulting in the formation of an oil-in-water Pickering emulsion. The emulsion is then incorporated into poly(acrylic acid)/guar gum (PAA/GG)-based hydrogels, leading to remarkable self-healing ability and mechanical properties. These hydrogels show promising prospects in sustainable materials.
Article
Chemistry, Organic
Huili Li, Jianmin Fu, Jundong Fu, Xueji Li, Donglei Wei, Hou Chen, Liangjiu Bai, Lixia Yang, Huawei Yang, Wenxiang Wang
Summary: A visible-light metal-free photocatalytic regioselective and enantioselective alkene halofunctionalization reaction under mild conditions is described. Various terminal and internal alkenes could be transformed to α-halogenated and α,β-dibrominated derivatives with good to excellent yields in as short as 5 min reaction time. Water serves as the green nucleophile and solvent in halohydroxylation and halo oxidation reactions. Different types of products can be obtained by adjusting the reaction conditions. Moreover, sunlight demonstrates the ability to produce similar yields, showcasing a practical example of solar synthesis and offering an opportunity for solar energy utilization.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Electrochemistry
Yingnan Zhang, Dongxiao Wang, Hao Niu, Hou Chen, Lixia Yang, Liangjiu Bai, Ying Liang, Donglei Wei, Huawei Yang
Summary: In this study, a high-capacitance flexible electrode was constructed through rational design of multiple-component nanocomposites. A corresponding FSC device was also successfully developed, which exhibits impressive energy density and stability. This research holds promising for integration into wearable electronic products.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Ya Song, Yingnan Zhang, Huawei Yang, Lixia Yang, Liangjiu Bai, Donglei Wei, Wenxiang Wang, Ying Liang, Hou Chen
Summary: In this work, a hierarchical metal-graphene-textile current collector is proposed to develop high-energy-density flexible supercapacitors. The assembled self-standing solid-state asymmetric flexible supercapacitor exhibits impressive areal capacitance and energy density, as well as outstanding cyclic and mechanical stability.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Pan Li, Tianjun Zhou, Liangjiu Bai, Hou Chen, Wenxiang Wang, Huawei Yang, Lixia Yang, Donglei Wei
Summary: A stretchable, conductive, antifreeze, and self-healing hydrogel was developed by incorporating PANI-coated CNCs and betaine into a GG/PAA hybrid double network. The hydrogel exhibited high strength (1.51 MPa), improved self-healing efficiency (72.8%), and a wide application temperature range, making it suitable for accurate sensing of human motion signals even at low temperatures.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Suting Xie, Xinyu Zhao, Jiabao Bai, Zhihua Yang, Hou Chen, Lixia Yang, Ying Liang, Liangjiu Bai, Huawei Yang
Summary: This study presents the synthesis of polyoxometalate (POM) derived Co,N-codoped MoOx nanoclusters on graphene sheets as catalysts for boosting the AODS reactions. Through experimental characterization and DFT calculations, it is demonstrated that the optimized catalyst exhibits enhanced catalytic activity by effectively activating O2 and optimizing the electronic structure. The catalyst shows impressive activity, durability, and deep desulfurization effect on real diesel.
JOURNAL OF CATALYSIS
(2023)