Article
Chemistry, Physical
Shengnan Song, Qiuxia Liu, Jukun Xiong, Meicheng Wen, Taicheng An
Summary: Recently, PdM bimetallic nanoparticle-supported catalysts have been studied for VOC combustion and the promotional effect has gained attention. In this study, Ti-SBA-15-supported PdAg nanoparticle catalysts were prepared and Pd13Ag1/Ti-SBA-15 showed superior activity and stability. The synergistic effect of Pd and Ag was responsible for the enhanced catalytic performance in cyclohexane combustion. The addition of Ag promoted the oxidative dehydrogenation of cyclohexane and catalytic cracking to generate more valuable products.
JOURNAL OF CATALYSIS
(2023)
Article
Materials Science, Multidisciplinary
Jae Won Lee, Seok Min Hong, Ju Ho Lee, Yung Zun Cho
Summary: Hydrophobic aluminosilicate aerogels containing silver were prepared through sol-gel processes using specific solvents and treatment methods, with high silver content and low surface area. Aerogels modified with hexamethyldisilazane exhibited high iodine adsorption capacity, large surface area, and pore volume.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Dong-Fei Lu, Shangda Li, Ming-Xue Guan, Yu-Peng Han, Yayong Sun, Xin Wu, Fei Wang, Jian Zhang
Summary: In this study, the first visible-light-active titanium sulfonate metal-organic framework (FIR-138) with 2-fold interpenetrated srs topology was successfully synthesized. FIR-138 exhibited good stability and excellent visible-light absorption performance, and demonstrated outstanding visible-light photocatalytic performance in organic reactions.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Physical
Jaemyung Lee, Minseok Bae, Joongmyeon Bae
Summary: This paper studied the effects of preparation methods on the exsolution and alloy formation in PtRu bimetallic catalysts for diesel reforming. It was found that the combustion synthesis catalyst exhibited higher stability and coke resistance compared to the impregnated catalyst.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Marcel G. de Souza, Dulce M. A. Melo, Rodolfo L. B. A. Medeiros, Fernando Maziviero, Heloisa P. Macedo, Angelo A. S. Oliveira, Renata M. Braga
Summary: Ni-based catalysts supported on MgAl2O4 were synthesized by microwave-assisted combustion method, and their catalytic properties were evaluated through various characterization techniques. The results indicate that the route of addition of the active phase and the amount of urea have different effects on the catalytic performance.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Vijendra Kumar Yadav, Taraknath Das
Summary: Magnesia modified alumina was synthesized and used as a support for iron-manganese oxide catalysts. Sequential impregnation method showed the highest activity and stability, and the weight of the catalyst significantly affected the conversion and product distribution.
REACTION CHEMISTRY & ENGINEERING
(2022)
Article
Energy & Fuels
Afdhal Yuda, Anand Kumar, Ibrahim Abu Reesh, Christopher K. Russell, Jeffrey T. Miller, Mohammed Ali Saleh Saad, Mohammed J. Al-Marri
Summary: In this study, the synthesis of silver-based electrocatalysts (Ag/C, AgCo/C, and AgNi/C) using solution combustion method and their performance in methanol oxidation reaction were reported. AgNi/C exhibited better performance compared to AgCo/C and Ag/C, possibly due to its smaller particle size and the stability of Ag+ on the catalyst surface.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Sukhbayar Gankhuyag, Dong Sik Bae, Kyoung Lee, Seunghyun Lee
Summary: In this study, silica-supported Ag NPs (SiO2@Ag) were synthesized as effective antibacterial agents through a wet-impregnation method. The TEM analysis confirmed the formation of SiO2@Ag with excellent antibacterial activity against E. coli bacteria at a concentration up to 1.00 mg/mL, fully inhibiting bacterial growth. The obtained material also showed good adhesion to steel and polyethylene substrates, with high inhibition effect against E. coli bacteria.
Article
Food Science & Technology
Allan Victor Souza Bernardino, Nathalia Santos Rocha, Elaine Maria da Silva, Rafael Augusto Batista de Medeiros, Edvaldo Vieira da Silva Junior, Neide Kazue Sakugawa Shinohara, Neila Mello dos Santos Cortez, Patricia Moreira Azoubel
Summary: The use of ultrasound and impregnation improved the moisture content, drying efficiency, and probiotic concentration in dehydrated jackfruit products. Specifically, the combination of ultrasound pretreatment and AI impregnation maintained a high probiotic concentration in the product over 28 days.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Vijendra Kumar Yadav, Taraknath Das
Summary: Alumina-supported Fe-Mn oxide catalysts were synthesized and characterized for their catalytic activity in the oxidation of cyclohexane. The study identified the most active catalyst and revealed the oxidation mechanism of cyclohexane on the catalyst surface.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Energy & Fuels
Chao Fan, Zhiwei Wu, Zhikai Li, Zhangfeng Qin, Huaqing Zhu, Mei Dong, Jianguo Wang, Weibin Fan
Summary: A polyvinyl alcohol (PVA) assisted impregnation method was proposed to prepare Co3O4/H-ZSM-5 catalysts, which effectively dispersed Co3O4 nanoparticles on the surface of H-ZSM-5 and obtained ultra-fine nanoparticles. The obtained catalysts exhibit stronger catalytic activity, higher thermal stability, and lower activation energy.
Article
Polymer Science
Philipp Neidinger, Dominik Voll, Sarah L. Walden, Christopher Barner-Kowollik, Andreas-Neil Unterreiner
Summary: This article introduces a two-photon pulsed laser polymerization method that can penetrate through biological tissue, and demonstrates its reliability through the example of free radical polymerization of methyl methacrylate at different frequencies.
Article
Polymer Science
Philipp Neidinger, Dominik Voll, Sarah L. Walden, Andreas-Neil Unterreiner, Christopher Barner-Kowollik
Summary: This paper introduces the 800 nm two-photon pulsed laser polymerization (PLP) and demonstrates its working principle through biological tissue. The reliability of 2P PLP in determining propagation rate coefficients is shown using the example of the free radical polymerization of methyl methacrylate (MMA) at frequencies ranging from 10 to 100 Hz.
Article
Chemistry, Physical
Alejandro L. Cardona, Cynthia B. Rivela, Rodrigo G. Gibilisco, Maria Belen Blanco, Oscar N. Ventura, Mariano Teruel
Summary: The rate coefficients of the O-3-initiated oxidation of allyl methyl sulfide and allyl ethyl sulfide were determined using both experimental and computational methods. It was found that the presence of OH radical scavengers reduced the reaction rates. The calculated results suggested that both reaction pathways contribute significantly to the overall reaction rate.
JOURNAL OF PHYSICAL CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Yan Dai, Xin Zhang, Yongfeng Liu, Haibo Yu, Wei Su, John Zhou, Qing Ye, Zhenguo Huang
Summary: This study reports the first synthesis and characterization of 1,6;2,3-bis-BN cyclohexane, which contains two adjacent BN pairs. This compound exhibits higher reactivity and hydrogen storage capability compared to its isomeric bis-BN cyclohexane.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Energy & Fuels
Sumit Chaturvedi, Shiv Vendra Singh, V. C. Dhyani, K. Govindaraju, R. Vinu, S. Mandal
Summary: This study characterized and pyrolyzed seven biomasses of Indian origin to produce biochars. The biochars were thoroughly characterized to assess their potential applications in energy, environment, and agriculture. Different biochars showed distinct properties, with some suitable for soil amelioration and others suitable for renewable solid fuel purposes.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Energy & Fuels
Lakshmiprasad Gurrala, M. Midhun Kumar, Shweta Sharma, Changyub Paek, R. Vinu
Summary: The study focused on developing Pd-metal oxides supported on activated biochar catalysts for hydrogenolysis of lignin, achieving high selectivity to C9 monomeric phenols. The conversion rate of lignin reached 67-69% with the Pd-metal oxide catalysts, demonstrating the potential for valorizing lignin to phenolic monomers and fine chemicals.
Article
Engineering, Environmental
R. Muneeswari, S. Iyappan, K. Swathi, R. Vinu, K. Ramani, G. Sekaran
Summary: This study utilized transposon technology to enhance the biosurfactant production capability of Enterobacter xiangfangensis STP-3 strain, resulting in improved degradation of recalcitrant hydrocarbons in petroleum oil sludge. Mutants M-257E.xiangfangensis and M-916E.xiangfangensis showed significantly higher biosurfactant production and better petroleum oil sludge degradation compared to the wild-type strain.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Istiaq Jamil Siddique, Arshad Adam Salema, Elsa Antunes, Ravikrishnan Vinu
Summary: MW-assisted heating technology is energy efficient and time-saving for biomass conversion, but faces challenges in scaling up due to factors such as material properties, hotspots, and MW power. This paper discusses these challenges and strategies to advance the scale-up of MW technology for processing biomass waste.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Computer Science, Information Systems
S. K. Amizhtan, A. J. Amalanathan, R. Sarathi, R. Vinu
Summary: This study investigates the effect of sulfur compounds in mineral oil on the aging of pressboard material. The results show that a higher concentration of DBDS reduces the surface discharge inception voltage (SDIV) of aged pressboard specimens, while the addition of Ag2S does not have the same effect. Tensile testing and Digital Image Correlation (DIC) technique were used to analyze the mechanical strength and strain percentage of the aged pressboard specimens. Laser induced breakdown spectroscopy (LIBS) analysis identified the elements responsible for thermal aging, and Principal Component Analysis (PCA) was used to classify the degradation of pressboard due to the diffusion of copper and silver sulfide from the mineral oil.
Article
Green & Sustainable Science & Technology
Dadi Suriapparao, Dharavath Anil Kumar, R. Vinu
Summary: This research focuses on the role of microwave susceptor-assisted pyrolysis in the valorization of PET bottle waste with rice husk. The study found that higher pyrolysis energy efficiency and valuable compounds can be obtained with specific PET:RH ratios and co-pyrolysis feed mixture mass.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Chemistry, Multidisciplinary
Jonnalagedda Varaha Jayarama Krishna, Peter Francis Prashanth, Ravikrishnan Vinu
Summary: This study focuses on the kinetics and product distribution of pyrolysis of three different types of PCB samples. The results show that different types of PCBs have different apparent activation energies and product distribution characteristics. Gaussian and Weibull distributions were used to effectively model the experimental data, and the analysis results demonstrate an increase in selectivity to aromatics and straight-chain aliphatics at high temperatures, while a decrease in selectivity to phenols and oxygenates.
Article
Chemistry, Applied
Vallabh S. Prabhudesai, R. Vinu
Summary: Bifunctional catalysts containing metal and acid sites are commonly used for the hydrodeoxygenation (HDO) of bio-oil/bio-oil model compounds. Platinum group metals, such as Pt, Pd, and Ru, have shown high HDO activity due to their excellent hydrogenation character. In this study, Pt/AC demonstrated superior HDO activity compared to Pd/AC and Ru/AC, thanks to the existence of metallic Pt-0 on AC. Additionally, the presence of acid sites offered by HZSM-5 in physically mixed Pt/AC and HZSM-5 catalysts enhanced the selectivity towards propyl cyclohexane (PC) during HDO of isoeugenol.
TOPICS IN CATALYSIS
(2023)
Article
Energy & Fuels
B. Rajasekhar Reddy, Soham Sarkar, R. Vinu
Summary: Microwave-assisted pyrolysis of cylindrical woodblocks was studied to investigate the effects of microwave distribution, microwave power, and final temperature on product yields and bio-oil composition. It was found that microwave pyrolysis of woodblocks can be achieved without adding any external microwave absorber. Non-uniform pyrolysis occurred in a domestic microwave oven, while uniform pyrolysis was observed in a research-grade microwave reactor equipped with an antenna. High reaction temperatures were achieved with low microwave powers, indicating effective conversion of microwave energy to heat by the woodblocks. The yields of bio-oil, bio-char, and gases remained consistent at different microwave powers and reaction temperatures. However, low microwave power and 600 degrees C resulted in low yields of non-condensable gas and high yield of biochar. The composition of bio-oil was sensitive to the operating conditions, and high selectivity to total phenolics was achieved at specific microwave power and temperature. CO2 and CO were the major non-condensable gases, while H-2 was also produced. High energy recovery in bio-char was observed, suggesting its potential as a feedstock for gasification.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Energy & Fuels
R. Bharathi Raja, Anusha C. Halageri, R. Sankar, Ramanujam Sarathi, Ravikrishnan Vinu
Summary: This study investigates the use of non-thermal plasma in a swirl-induced electrode discharge reactor for the dry reforming of methane. The reactor design promotes better mixing of reactant gases, leading to increased conversion rates. The study examines the effect of flow rates and compositions of CO2/CH4 on conversion, and analyzes the characteristics of the produced syngas and solid carbon. The findings show that higher concentrations of CO2 or CH4 result in increased conversion, while increasing flow rates reduce energy costs.
Article
Energy & Fuels
S. Harisankar, R. Vinu
Summary: Hydrothermal liquefaction (HTL) is a promising technology that converts waste biomass into valuable chemicals and energy through physical and chemical transformations under sub-critical or supercritical water conditions. Most existing studies have focused on the conversion of specific feedstocks like wood, algae, and plastics, with limited research on the HTL of heterogeneous feedstocks like municipal solid wastes (MSW). This paper reviews the available literature on HTL of biodegradable wastes, non-biodegradable polymers, and MSW, as well as the challenges and possibilities of scaling up the HTL process with MSW as the feedstock.
Article
Chemistry, Physical
Madambakam Midhun Kumar, Vallabh S. Prabhudesai, Ravikrishnan Vinu
Summary: This study evaluated the catalytic activities of Pd-Lewis acid metal oxides supported on commercial activated carbon (AC) and activated biochar (ABC) for the selective production of monomeric phenols from alkali lignin through transfer hydrogenolysis. The results showed that the AC-supported catalysts had larger Pd crystallite size and better degree of graphitization, while ABC-supported catalysts exhibited higher dimerization of monomeric phenols.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Physical
S. Harisankar, Ravikrishnan Vinu
Summary: Black liquor, a by-product from the paper and pulp industry, can be valorized through hydrothermal liquefaction (HTL) for the production of bioproducts and biochemicals. In this study, HTL experiments were conducted on hardwood black liquor to evaluate the effects of temperature, biomass loading, and residence time. The results showed that temperature had a significant effect on product yield and selectivity, while biomass loading mainly impacted the yield of hydrochar. Phenols, aliphatic hydrocarbons, and ketones were the major organic compounds detected in the liquid product.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Physical
Vallabh S. Prabhudesai, K. Saravanakumar, Lakshmiprasad Gurrala, R. Vinu
Summary: Lignin-first depolymerization using reductive catalytic fractionation is a potential strategy for resource recovery in biorefinery. Wood delignification is achieved using low-metal catalysts supported on activated charcoal. Pd/ACC catalyst shows the highest degree of delignification and selectivity towards lignin monomers. Ultrasonic pre-treatment enhances the delignification and selectivity, achieving high retention of carbohydrates. Pd/ACC catalyst demonstrates superior activity due to better dispersion and hydrogenation activity of Pd.
SUSTAINABLE ENERGY & FUELS
(2023)
Review
Energy & Fuels
Arputhasamy Joseph Amalanathan, Ramanujam Sarathi, Maciej Zdanowski, Ravikrishnan Vinu, Zbigniew Nadolny
Summary: This paper reviews the gassing tendency of different insulating fluids in transformers and provides precautionary measures for fault diagnosis. Experimental techniques for identifying gassing due to electrical and thermal stress, as well as stray gassing phenomenon, are explained. Interpretation schemes based on historical data of mineral oil may lead to unexpected errors for alternative fluids. Mineral oil and natural ester have positive gassing tendency, while synthetic ester exhibits negative gassing tendency. Stray gases are mostly caused by C-C bond breakage at normal operating temperature. Hydrogen and ethylene are predominantly formed at lower temperatures. Silicone oil and ester fluids are more stable and produce less gassing compared to mineral oil under simulated hot spots. Additives, oxygen, and water content in insulating fluids can confuse the identification of actual faults. Regeneration of insulating fluids using adsorbents reduces gassing tendency depending on the number of cycles.
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)
