Article
Chemistry, Multidisciplinary
Meixiu Wei, Haoran Ma, Qilin Lu, Da Ruan, Zhengdong Ma, Xiao Chen
Summary: A microreactor was fabricated for the direct synthesis of 2-cyanopyrazine. The continuous-flow process achieved high space-time yield under strong exothermic conditions, and the optimal ammoxidation process was obtained by optimizing process parameters.
Article
Chemistry, Physical
Xin-Yu Zhang, Feng-Ting Li, Zhuo-Ning Shi, Bin Dong, Yi-Wen Dong, Ze-Xing Wu, Lei Wang, Chen-Guang Liu, Yong-Ming Chai
Summary: Reasonable design of electronic structure is crucial for optimizing the catalytic activity of hydrogen evolution reaction (HER) electrocatalysts. V-doped FeP nano-flower grown directly on iron foam exhibit enhanced HER activity, attributed to factors such as lower d-band central position, increased water dissociation capacity, decreased hydrogen formation energy barrier, and reduced charge transfer impedance. This novel HER catalyst shows great potential for practical electrolytic water industry applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Pooja Bhaskar Madambikkattil, Shantikumar V. Nair, Dhamodaran Santhanagopalan
Summary: In this study, the electrochemical performance of Na3V2(PO4)(3) cathode material was improved through dual-doping with Cr and Mg. The optimal doping concentration of 0.1 for both Cr and Mg showed positive effects on the capacity, rate performance, and cycling stability of the cathode material.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Qiao Hu, Jiaying Liao, Xiang Xiao, Xiaodan Wang, Jinli Liu, Youzhi Song, Dongsheng Ren, Hao Zhang, Li Wang, Zonghai Chen, Xiangming He
Summary: This study achieves ultrahigh rate performance by introducing an affinitive conductor, Li3V2(PO4)(3), to enhance the interfacial electron transport of LiMn0.7Fe0.3PO4 as the cathode material for lithium-ion batteries. The results reveal the synergistic effect between LiMn0.7Fe0.3PO4 and Li3V2(PO4)(3) through in situ X-ray diffraction and conductive-atomic force microscopy.
Article
Materials Science, Multidisciplinary
V. Elakkiya, S. Sumathi
Summary: In this study, a series of NIR reflective pigments were synthesized using naturally abundant iron based phosphates. The tailored materials were characterized and it was found that vanadium (V) and bismuth (Bi) doped FePO4 materials showed high reflectance, making them potential cool pigments.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Review
Chemistry, Inorganic & Nuclear
Korawich Trangwachirachai, Yu-Chuan Lin
Summary: This review surveys the processes of transforming light hydrocarbons to nitriles, discusses the developments in nitrile synthesis from alkanes, and addresses the existing challenges and plausible solutions.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Chemical
Bing Feng, Longqin Gu, Siqing Zhong, Bozhao Chu, Bingxu Chen, Ju Wang, Yongzheng Li, Weimin Yang
Summary: The study of the reaction behavior of meta-xylene ammoxidation on a commercial V-Cr mixed oxide catalyst revealed the importance of ammonia oxidation for N-2 production in the ammoxidation process. The determination of activation energies and reaction orders played a crucial role in the selective production of isophthalonitrile (IPN) and m-tolunitrile (MTN).
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Physical
Xinran Li, Cheng Chen, Jian Yang, Zixuan Fang, Shumao Zeng, Tingting Feng, Haiping Zhou, Shu Zhang, Mengqiang Wu
Summary: This study addresses the low conductivity issue of the sodium ion battery cathode by employing transitional metal cation doping and carbon frame design. A stable and firm skeleton structure is achieved through the anchoring effect of external hard carbon layers and the pillar effect of Zn2+, leading to improved rate performance and long cycle life.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Jiahao Li, Jun Cheng, Yanjun Chen, Chao Wang, Li Guo
Summary: By co-doping K(+) and Zr(4+), the NVP structure was successfully optimized, increasing the Na(+) migration channels and intrinsic electrical conductivity, thereby significantly improving the electrochemical performance.
Article
Chemistry, Inorganic & Nuclear
Hilke Petersen, Niklas Stegmann, Michael Fischer, Bodo Zibrowius, Ivan Radev, Wladimir Philippi, Wolfgang Schmidt, Claudia Weidenthaler
Summary: Transition-metal phosphates have a wide range of applications and can be used as catalysts, battery materials, and fuel cell membranes. This study successfully determined the structures of two novel titanium pyrophosphates using experimental data, and found that these compounds exhibit good conductivity and potential for electrochemical device applications.
INORGANIC CHEMISTRY
(2022)
Article
Engineering, Environmental
C. Belloni, L. Korving, G. J. Witkamp, E. Bruck, A. I. Dugulan
Summary: Phosphorus (P) removal from freshwater bodies to ultra-low concentrations is crucial for preventing eutrophication, and recovery of phosphorus is necessary for closing the P usage cycle. Iron oxide-based adsorbents, specifically goethite, doped with elements like Zn and Mn showed improved adsorption capacity and stability, while maintaining high affinity for P. Surface protonation was identified as a charge compensation mechanism for Zn2+-for-Fe3+ substitution, which enhanced goethite's point of zero charge. The doping strategy demonstrated promising potential for manipulating iron oxide surface properties and developing efficient goethite-based adsorbents.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Pengcheng Hu, Yimin Zhang, Hong Liu, Tao Liu, Sheng Li, Ruobing Zhang, Zhijie Guo
Summary: In this research, a two-stage leaching process was proposed to extract vanadium efficiently from the by-product of vanadium titanium magnetite BOF steelmaking process, vanadium slag (VS). The total leaching efficiency of vanadium can reach as high as 98.52% by sodium roasting-water leaching for VS and sulfuric acid leaching for water leaching residue (WLR). The mechanism analysis indicates that the structures of wrapping phases and spinel can be effectively destroyed by acid leaching, releasing vanadium in WLR.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Xiao Liu, Juan Gong, Xijun Wei, Ling Ni, Houyang Chen, Qiaoji Zheng, Chenggang Xu, Dunmin Lin
Summary: The MoO42- doped sodium vanadium phosphate material showed high initial capacity, excellent capacity retention, and good rate capability. The doping significantly enhanced structural stability and electronic conductivity, promoting a highly reversible phase transition process during the electrochemical reaction of the material. This study provides new insights into the design of advanced cathodes for high-performance sodium-ion batteries through unique anion doping strategy.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Junpeng Fan, Xiuyu Wu, Alexis Pineiro-Garcia, Nicolas Boulanger, Yesmin Panecatl-Bernal, Anumol Ashok, Sergey Koroidov, Eduardo Gracia-Espino
Summary: By utilizing a fast and energy-efficient microwave-assisted carburization process, electrochemically active beta-Mo2C nanoparticles for hydrogen production were synthesized. The optimized composite exhibited excellent hydrogen evolution reaction (HER) performance in an acidic electrolyte, making it one of the most efficient non-noble-metal catalysts available. This exceptional activity was achieved through the abundance of beta-Mo2C nanoparticles, the intimate nanoparticle-substrate interface, and enhanced electron transport toward the carbon black matrix.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
X. Zhang, D. Li, Q. Ruan, L. Liu, B. Wang, F. Xiong, C. Huang, P. K. Chu
Summary: This paper provides a comprehensive overview of vanadium-based cathode materials for rechargeable magnesium batteries (RMBs), including vanadium oxides, vanadates, vanadium chalcogenides, and vanadium-based phosphates. The structure, electrochemical properties, optimization strategies, structure-performance relationship, and reaction mechanisms of various vanadium-based cathode materials are described. The challenges, prospective, and future research directions of vanadium-based electrode materials are discussed.
MATERIALS TODAY ENERGY
(2023)
Article
Chemistry, Physical
Nagaraju Pasupulety, Hafedh Driss, Sharif F. Zaman, Yahia Abobakor Alhamed, Abdulrahim Ahmed Alzahrani, Muhammad A. Daous, Lachezar Petrov
APPLIED CATALYSIS A-GENERAL
(2016)
Article
Chemistry, Physical
Abdulrahim A. Al-Zahrani, Nagaraju Pasupulety, Muhammad A. Daous, Hafedh Driss, Arshid M. Ali, Sharif F. Zaman, Lachezar A. Petrov
APPLIED CATALYSIS A-GENERAL
(2018)
Article
Engineering, Chemical
Sharif F. Zaman, Nagaraju Pasupulety, Abdulrahim A. Al-Zahrani, Muhammad A. Daous, Hafedh Driss, Saad S. Al-Shahrani, Lachezar Petrov
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2018)
Article
Chemistry, Multidisciplinary
Nagaraju Pasupulety, Hafedh Driss, Mohammed Raoof A. Rafiqui, Abdulrahim A. Al-Zahrani, Muhammad A. Daous, Arshid M. Ali, Sharif F. Zaman, Lachezar A. Petrov
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2019)
Article
Chemistry, Multidisciplinary
Nagaraju Pasupulety, Abdurrahim A. Al-Zahrani, Mohammad A. Daous, Hafedh Driss, Lachezar A. Petrov
ARABIAN JOURNAL OF CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Nagaraju Pasupulety, Abdurahim A. Al-Zahrani, Muhammad A. Daous, Seetharamulu Podila, Hafedh Driss
Summary: Excellent CO2 hydrogenation activity was observed on the CZA-K catalyst at 220 degrees C, with high methanol selectivity. The high methanol space time yield was attributed to the presence of superior surface Cu+/Cu-0 content through K2CO3/KOH precipitation. Furthermore, the stable catalytic activity of CZA-K for 100 hours at 240 degrees C was associated with fewer carbon deposits and segregated active metals.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Nagaraju Pasupulety, Abdurrahim A. Al-Zahrani, Mohammad A. Daous, Hafedh Driss, Lachezar A. Petrov
Summary: In this study, the influence of second metals (M = Ce or Pd or Nb) on Mo2C active phase reduction and surface MoOx species transformation in M-Mo2C/HZSM-5 catalysts for methane dehydroaromatization was investigated. It was found that Pd-Mo2C/HZSM-5 catalyst showed the highest benzene yield due to limited Mo2C active phase reduction and promoted coke burning, while Ce-Mo2C/HZSM-5 catalyst exhibited decreased methane conversion. Additionally, Nb-Mo2C/HZSM-5 catalyst produced superior coke via CH4 decomposition, resulting in a lower benzene yield compared to Pd-Mo2C/HZSM-5 and Mo2C/HZSM-5 catalysts after 10 hours of reaction at 700 degrees C.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Thermodynamics
Hesham Alhumade, Jean Constantino Gomes da Silva, Emanuele Mauri, Muhammad Sajjad Ahmad, Yusuf Al-Turki, Nagaraju Pasupulety, Ali Elkamel
Summary: This study evaluated the feasibility of using Holy Thistle for energy and organic chemical production through pyrolysis, showing that the products of pyrolysis align with cleaner production of bio-gas, char, and bio-oil.
ENERGY CONVERSION AND MANAGEMENT-X
(2022)
Article
Energy & Fuels
Nagaraju Pasupulety, Abdurahim A. Al-zahrani, Muhammad A. Daous, Hafedh Driss, Hesham Alhumade
Summary: Mesoporous tantalum-zirconium oxide (TZ) solid acid catalysts were synthesized and employed for biodiesel production from higher water and palmitic acid added oil feedstocks. The results showed that the yield of methyl palmitate and soybean oil fatty acid methyl ester (FAME) was significantly improved with the addition of tantalum to ZrO2. The high ester yield on TZ catalysts was attributed to the improved acidity and interaction between the catalyst and methanol and triglycerides.
Article
Chemistry, Applied
Nagaraju Pasupulety, Muhammad A. Daous, Abdulrahim A. Al-Zahrani, Hafedh Driss, Lachezar A. Petrov
CHINESE JOURNAL OF CATALYSIS
(2019)
Article
Multidisciplinary Sciences
Yahia A. Alhamed, Arshid M. Ali, Abdulrahim A. Zahrani, Muhammad A. Daous, Muhammed Umar, Hafed Driss, Seetharamulu Podila, Nagaraju Pasupulety, Sharif F. Zaman, Lachezar A. Petrov
COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES
(2017)
Article
Multidisciplinary Sciences
Yahia Alhamed, Arshid M. Ali, Abdulrahim A. Al-Zahrani, Muhammad A. Daous, Mohamed Umar, Seetharamulu Podila, Nagaraju Pasupulety, Aramice Y. S. Malkhasian, Lachezar A. Petrov
COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES
(2017)
Article
Chemistry, Multidisciplinary
Sharif F. Zaman, Nagaraju Pasupulety, Abdulrahim A. Al-Zahrani, Muhammad A. Daous, S. S. Al-Shahrani, Hitoshi Inokawa, Lachezar A. Petrov, Hafedh Driss
JOURNAL OF CHEMICAL SCIENCES
(2017)
Article
Chemistry, Physical
Sharif F. Zaman, Nagaraju Pasupulety, Abdulrahim A. Al-Zahrani, Muhammad A. Daous, Saad S. Al-Shahrani, Hafedh Driss, Lachezar A. Petrov, Kevin J. Smith
APPLIED CATALYSIS A-GENERAL
(2017)
Article
Chemistry, Multidisciplinary
Nagaraju Pasupulety, Hafedh Driss, Yahia Abobakor Alhamed, Abdulrahim Ahmed Alzahrani, Muhammad A. Daous, Lachezar Petrov, N. Lingaiah, P. S. Sai Prasad
JOURNAL OF CHEMICAL SCIENCES
(2016)
Article
Chemistry, Physical
Ming-Yi Chen, Ngoc Thanh Thuy Tran, Ahmed Abubakar Alao, Wen-Dung Hsu
Summary: This study demonstrates the significance of surface Pt atom arrangement for the efficiency of ORR in PEMFCs and reveals the correlation between Pt-Pt average distance and O2 dissociation barrier. Furthermore, the study discovers a robust correlation between the level of the catalyst's d-band center and O2 adsorption energy. High-entropy alloy substrates provide potential for controlling Pt arrangement and O2 dissociation barrier.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Eduardo C. Atayde Jr, Babasaheb M. Matsagar, Yu-Cheng Wang, Kevin C. -W. Wu
Summary: This study presents the first application of an acidic MOF, Sulfated MOF-808, in catalyzing the HAA reactions of furan oligomers for the production of biofuel precursors. The catalyst showed high yield, selectivity, and recyclability, making it versatile for different starting materials.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Maria do Carmo Rangel, Francieli Martins Mayer, Soraia Jesus de Oliveira, Sergio Gustavo Marchetti, Fabricio Luiz Faita, Doris Ruiz, Giovanni Saboia, Mariana Kieling Dagostini, Jonder Morais, Maria do Carmo Martins Alves
Summary: This study developed a new catalyst by investigating the effect of magnesium on the catalytic properties of hematite in ethylbenzene dehydrogenation. The catalyst showed important differences in activity, selectivity, and stability, making it a promising candidate for commercial applications.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yanjun Li, Qian Wang, Hui Tian, Mingyuan Zhu, Yuanyuan Liu
Summary: A novel strategy using microwave-assisted precipitation was proposed to prepare defective CsH3PMo11VO40 catalyst for the oxidation of methacrolein to methacrylic acid. Microwave treatment accelerates crystallization, increases vanadyl species content, and forms defective Keggin structures, thereby enhancing the oxidation capacity of the catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Rajeshwari Athavale, Sailee Gardi, Fatima Choudhary, Dayanand Patil, Nandkishor Chandan, Paresh More
Summary: In this study, a novel acidic ionic liquid catalyst was prepared and used for the synthesis of bis-indolyl methane derivatives. The catalyst exhibited short reaction times, easy purification, and reusability.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Masatomo Hattori, Takato Hattori, Masakuni Ozawa
Summary: Cu-added gamma-Al2O3 catalysts were prepared with varying Cu loadings and the effects of copper oxidation states on catalytic activity were investigated. The results showed that the addition of copper increased the catalyst activity, but excessive copper loading decreased catalytic activity. XRD and TEM analysis indicated the formation of a solid solution of copper oxide species on the surface of gamma-Al2O3. XAS and TPR data demonstrated variations in copper oxidation states among the catalysts.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liwei Fang, Shiyang Niu, Shengsen Wang, Yiqing Lu, Yuanhui Cheng
Summary: In this study, PtNi alloy on nitrogen-doped carbon and SnO2 dual-support was designed to modulate the metal-support interaction, resulting in improved catalytic activity and stability for oxygen reduction reaction. The SnO2/PtNi/NC catalyst exhibited a strongly coupled interface, enhanced electron transfer, and higher half-wave potential compared to PtNi/NC and commercial Pt/C.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Shohei Harada, Duanxing Li, Kenta Iyoki, Masaru Ogura
Summary: This study investigates the catalytic performance of a composite catalyst composed of ZnZrOX and H-zeolite for the hydrogenation of CO2. The deactivation of the composite catalyst is influenced by ion exchange of Zn2+ and/or coke, with their effects differing based on the zeolite structure. Separating the grains of the composite catalyst can prevent deactivation.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Laura Proano, Christopher W. Jones
Summary: In this study, NiGa alloy particles supported on CeO2, ZrO2, and ZrO2-CeO2 solid solutions were prepared and characterized. The nature of the support was found to have a significant influence on the catalyst's activity and selectivity, with the crystalline structure of ZrO2 having the greatest impact. Pure ZrO2 showed the highest methanol selectivity and CO2 conversion at high Zr:Ce ratios. In equimolar and Ce-rich conditions, basic sites and oxygen vacancies were found to be the key parameters affecting methanol production.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liyan Zhang, Yinze Yang, Leilei Zhou, Fengyu Zhao, Haiyang Cheng
Summary: 1,6-Hexamethylenediamine was successfully synthesized via the reductive amination of 1,6-hexanediol using a Ru/PRL(x)-Al2O3 catalyst. The highly dispersed and anchored Ru species, formed by 1,10-phenanthroline (PRL), played a crucial role in the catalytic reaction. The formation of new acid-base pairs, electron deficient Ru species, and smaller nanoparticles contributed to the improved catalytic performances of the Ru/PRL-Al2O3 catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Anita Horvath, Miklos Nemeth, Andrea Beck, Gyorgy Safran, Valeria La Parola, Leonarda Francesca Liotta, Gregor Zerjav, Matevz Roskaric, Albin Pintar
Summary: This study investigates the catalytic and structural changes caused by the addition of 0.25 wt% indium in a 3% Ni/CeO2-Al2O3 catalyst prepared by impregnation method. The results show that the addition of indium can decrease the activity of the catalyst, but it improves its stability and reduces coking.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Ankush Kularkar, Vaibhav Vilas Khedekar, Sachin D. Chaudhari, Mudavath Ravi, Sadhana S. Rayalu, Penumaka Nagababu
Summary: Efficiently addressing the challenges of photocatalytic CO2 reduction to CH3OH is crucial. This study developed Zn-BTC MOF and its composites with CaIn2S4, achieving highly efficient and robust photocatalytic CO2 reduction to CH3OH under ambient conditions, using H2O2 as the hydrogen source. Among the composites, ZMCIS4 demonstrated excellent performance with a CH3OH evolution of 49100 μmol/g.cat and a quantum efficiency of approximately 78.41%. The enhanced performance was attributed to the production of nascent hydrogen atoms (H center dot) through the photo-splitting of H2O2 on the ZMCIS surface.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Dan Liu, Yudong Li, Chengyu Wang, Haiyue Yang, Rong Wang, Shujun Li, Xiaohui Yang
Summary: In this study, a self-supporting three-dimensional porous Co3O4 nanobelt array decorated on nickel foam (P-Co3O4 -NBA@NF) electrode with numerous active sites was successfully constructed for the oxidation of 5-Hydroxymethylfurfural (HMF) to 2,5-furan dicarboxylic acid (FDCA). The P-Co3O4 -NBA@NF electrode demonstrated high conversion efficiency, selectivity, and Faraday efficiency, as well as remarkable long-term stability. This research provides a promising electrocatalyst for biomass conversion.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yimin Li, Enggah Kurniawan, Fumiya Sato, Takayoshi Hara, Yasuhiro Yamada, Satoshi Sato
Summary: In this study, several silica-alumina catalysts modified with Ag were examined for the dehydration of 1,3-butanediol to 1,3-butadiene. Among them, an amorphous silica-alumina catalyst (SAL-3) modified with Ag showed the highest improvement in catalytic activity and stability when operated in H2 flow. The generation of reversible acid sites was found to be the reason behind the enhanced activity and stability of this Ag/SAL-3 catalyst. The effects of various parameters on the catalytic activity of Ag/SAL-3, such as reaction temperature, contact time, Ag content, and carrier gas, were investigated.
APPLIED CATALYSIS A-GENERAL
(2024)
