Article
Energy & Fuels
Qitong Cheng, Benxian Shen, Jichang Liu, Xinglong Qin, Lei Ye, Biao Xing
Summary: The study focused on the naphtha-methanol coupling conversion catalyzed by HZSM-5, with a structured lumping (SOL) kinetic model developed to predict product distributions. Significant improvements in naphtha conversion rate and light olefin yield were achieved using this approach.
Article
Engineering, Environmental
Shangfeng Li, Hao Yan, Yibin Liu, Xiaobo Chen, Xin Zhou, Xiang Feng, Chaohe Yang
Summary: Metal doped ZSM-5 catalysts have been extensively studied for their unique catalytic activity in C-H bond activation. In this work, we used density functional theory calculations and microkinetic analysis to explore the catalytic activity of 12 transition metal single-atom-doped ZSM-5 zeolite catalysts in the catalytic cracking of naphtha. Our results show a strong electronic interaction between the metal atom and ZSM-5 skeleton, leading to a stable structure that enhances hydrocarbon adsorption and promotes C-H bond activation and carbenium ion cracking. Carbon and hydrogen binding energy were identified as descriptors for catalytic activity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Yingkai Li, Nishu, Dominic Yellezuome, Chong Li, Ronghou Liu
Summary: This study evaluated the deactivation process and regeneration effects of bimetallic Fe-Ni/ZSM-5 catalysts in the catalytic pyrolysis of poplar sawdust. The results showed that the deoxygenation activity and hydrocarbon yield of the catalyst were influenced by the biomass/catalyst ratio. The coke resistance capacity of the catalyst was increased, and the regenerated catalyst retained deoxygenation activity with slightly reduced aromatic yield.
Article
Chemistry, Physical
Jonas Hedlund, Ming Zhou, Abrar Faisal, Olov G. W. Oehrman, Valeria Finelli, Matteo Signorile, Valentina Crocella, Mattias Grahn
Summary: In this study, a systematic investigation was conducted on two sets of defect-free and defective ZSM-5 crystals with controlled thickness. Their performances in methanol conversion were analyzed, and strong correlations were observed between crystal thickness and deactivation rate as well as selectivity. Thinner defect-free crystals showed superior activity and selectivity, while thicker crystals and crystals with defects exhibited faster deactivation.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Applied
Hagos Birhane Asfha, Ashenafi Hailu Berta, Nayoung Kang, Danim Yun, Jaedeuk Park, Yong-Ki Park, Kiwoong Kim
Summary: In this study, a reaction mechanism of light straight run naphtha cracking over micro-spherical catalyst containing HZSM-5 was systematically investigated. The results showed that light paraffins and olefins were the primary products, and oligomerization and β-scission cracking dominated the secondary reactions. Experiments on single hydrocarbon feeds indicated that BTX formation proceeded via the formation of cycloalkanes and cyclo-olefinic intermediates. Temperature and space time influenced the product selectivity, with propylene selectivity increasing at lower temperatures and ethylene selectivity increasing at higher temperatures.
Article
Chemistry, Physical
Aurelien Bonnin, Yannick Pouilloux, Vincent Coupard, Denis Uzio, Ludovic Pinard
Summary: This study aims to identify the deactivation mechanism(s) in the aromatization of dilute ethylene on Zn/H-MFI catalyst, revealing that deactivation is mainly caused by coke deposition rather than Zn sublimation. The balance between Lewis and Bronsted acid sites plays a significant role in predicting catalyst stability, and the reduction of micropore volume serves as the best descriptor for deactivation.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Chemistry, Physical
Antoine Beuque, Matthias Barreau, Elise Berrier, Jean-Francois Paul, Nuno Batalha, Alexander Sachse, Ludovic Pinard
Summary: The study on ethylene dehydroaromatisation revealed that the presence of long diffusion path lengths in micro-sized zeolite leads to mass transfer resistance, while nano-sized zeolite promotes fast formation of the active hydrocarbon pool due to shorter diffusion path length, resulting in higher activity and selectivity into benzene with significantly mitigated catalyst deactivation.
Article
Chemistry, Applied
Shufang Zhao, Daniel Collins, Lizhuo Wang, Jun Huang
Summary: Hierarchical ZSM-5 catalysts with different pore sizes and the addition of non-acidic SiO2 binders have been prepared for cracking of 1,3,5-triisopropylbenzene (TIPB). Increasing pore sizes of ZSM-5 catalysts improves TIPB conversion and stability, with the hierarchical catalyst with a macropore diameter of about 60 nm showing the best performance. Additionally, the addition of SiO2 binders helps limit deactivation and reduce polyaromatic species formation during TIPB cracking.
Article
Chemistry, Physical
Gabriel L. Catuzo, Luiz G. Possato, Maria Eugenia Sad, Cristina Padro, Leandro Martins
Summary: This study investigates the detailed aging of coke in spent H-ZSM-5 zeolites after their use in the gas-phase glycerol dehydration to produce acrolein. The carbonaceous deposits formed rapidly in the pores hampering the accessibility to active sites and the zeolite's catalytic action. The types of coke formed during the reaction and their impact on the zeolite's structure and accessibility to acid sites were also examined.
Article
Chemistry, Multidisciplinary
Runze Jin, Haobin Hu, Jiaofei Wang, Zhuangzhuang Zhang, Chengyi Dai, Xiaoxun Ma
Summary: Dividing the traditional methanol to aromatics reaction into two steps using SAPO-34 and Zn/ZSM-5 as catalysts can significantly improve the aromatic selectivity through optimized loading methods and ratios.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Environmental
Leilei Dai, Hailong Zhao, Nan Zhou, Kirk Cobb, Paul Chen, Yanling Cheng, Hanwu Lei, Rongge Zou, Yunpu Wang, Roger Ruan
Summary: Catalytic cracking of plastics into naphtha as a substitute for new plastic production has the potential to contribute to the plastic circular economy. By utilizing hierarchical ZSM-5 catalysts, a significant improvement (4.3 x to 12.3 x) in catalyst lifetime has been achieved compared to conventional analogues. Increasing the Bronsted acid concentration enhances catalyst lifetime and boosts cumulative aromatic selectivity, resulting in economic benefits and reduced environmental impact.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Chemistry, Analytical
Iratxe Crespo, Jasmine Hertzog, Vincent Carre, Frederic Aubriet, Beatriz Valle
Summary: The role of the matrix in the deactivation of HZSM-5 zeolite in the catalytic cracking of biomass pyrolysis bio-oil was investigated. The alumina-embedded catalyst exhibited greater stability compared to bulk HZSM-5. The improved behavior was attributed to the dual function of the matrix, which promoted fragmentation/deoxygenation of bulky molecules and enhanced the diffusion of hydrocarbons outwards from zeolite crystals.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Chemistry, Applied
Tomas Cordero-Lanzac, Cristina Martinez, Andres T. Aguayo, Pedro Castano, Javier Bilbao, Avelino Corma
Summary: This study investigates the synergies between oxygenates (especially dimethyl ether) and n-pentane at low OX/nC(5) ratios, enhancing n-pentane conversion while reducing catalyst coking rate. The analysis of used catalysts reveals that dimethyl ether exhibits higher reactivity than methanol in forming coke structures.
Article
Chemistry, Applied
Xiang Gao, Ling Zhang, Zhichao Tao, Huimin Chen, Yu Zhang, Huiyong Gong, Xiaodong Wen, Yong Yang, Yongwang Li
Summary: This study prepared three ZSM-5 samples (Z-0.1, Z-1.5 and Z-5.0) using different amounts of Silicalite-1 seed, and modified them with Zn impregnation method. The addition of seeds affected the particle size, mesopore volume, acidity and crystal surface of resulting zeolites, influencing their catalytic performance on propane aromatization. Zn impregnation improved the catalytic stability of the samples, with Z-5.0 showing the best distribution of Zn and highest BTX selectivity.
Article
Chemistry, Multidisciplinary
Jindi Duan, Wei Chen, Chengtao Wang, Liang Wang, Zhiqiang Liu, Xianfeng Yi, Wei Fang, Hai Wang, Han Wei, Shaodan Xu, Yiwen Yang, Qiwei Yang, Zongbi Bao, Zhiguo Zhang, Qilong Ren, Hang Zhou, Xuedi Qin, Anmin Zheng, Feng-Shou Xiao
Summary: A low-temperature conversion of polyethylene into olefins is reported, which provides an efficient way to upgrade plastic waste into valuable chemicals.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Environmental Sciences
M. Irfan, M. Zahid, N. Tahir, M. Yaseen, U. Y. Qazi, R. Javaid, I. Shahid
Summary: In this study, iodine-doped iron tungstate was reported as an active photo-Fenton heterogeneous catalyst for wastewater treatment. The introduction of reductive non-metal species greatly enhanced the catalytic efficiency of FeWO4. The synthesized iodine-doped FeWO4 exhibited a 93.8% degradation rate of RhB under sunlight.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Rahat Javaid, Tetsuya Nanba
Summary: This study aimed to develop a relatively low-cost efficient catalyst for plant scale ammonia synthesis. A mixed oxide of MgO-CeO2 was prepared and used as a support for the Ru catalyst. The Ru/MgO-CeO2 catalyst showed equivalent ammonia synthesis activity compared to Ru/CeO2, making it a cost-effective alternative.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Environmental Sciences
Umair Yaqub Qazi, Rahat Javaid, Amir Ikhlaq, Khaled A. Alawi Al-Sodani, Osama Shaheen Rizvi, Amira Alazmi, Abdullah Mohamed Asiri, Sami M. Ibn Shamsah
Summary: This research attempts to find a new approach for the removal of arsenic from drinking water by using iron-loaded activated carbons in a synergistic process of ozonation and catalytic ozination. The results showed that the catalytic ozination process significantly removes arsenic compared to single ozination and adsorption processes.
Article
Environmental Sciences
Amir Ikhlaq, Umair Yaqub Qazi, Asia Akram, Osama Shaheen Rizvi, Adeel Sultan, Rahat Javaid, Khaled A. Alawi Al-Sodani, Sami M. Ibn Shamsah
Summary: This study developed a hybrid unit combining catalytic ozonation and filtration to effectively remove contaminants in drinking water. The results showed high removal efficiency of pollutants and compliance with drinking water quality standards. The novel hybrid reactor treatment can be scaled up for future applications.
Review
Chemistry, Multidisciplinary
Yuki Nakaya, Shinya Furukawa
Summary: This review provides a comprehensive disciplinary framework for alloy catalysis, including the classification of alloy materials, the roles of alloying in catalysis, and the design of functional catalysts. By analyzing from both materials and reactions, it helps to enhance the understanding of alloy catalysis chemistry.
Article
Environmental Sciences
A. Ikhlaq, A. Hussain, S. R. Gilani, U. Y. Qazi, A. Akram, K. A. A. Al-Sodani, R. Javaid
Summary: Milk adulteration can contaminate milk with harmful substances, posing serious health risks. The authors proposed a novel solution using catalytic ozonation with Fe-zeolite-4A as a catalyst to remove pathogens and toxic metals from milk. The O-3/Fe-Ze4A process demonstrated high efficiency, achieving 100% removal of contaminants in 20 minutes. Therefore, it is suggested that this process can be used for milk purification at the household level.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Yuki Nakaya, Eigo Hayashida, Ruikun Shi, Ken-ichi Shimizu, Shinya Furukawa
Summary: The role of subsurface carbon and the synergistic effects of Au and KOAc in the acetoxylation of ethylene have been investigated. The presence of subsurface carbon in Pd-Au/SiO2 catalyst was found to enhance the catalytic performance in VAM synthesis. Experimental and theoretical analysis also suggests that the coupling reaction between acetate and ethylene is effectively promoted by the synergistic contributions of Au and interstitial carbon, inhibiting ethylene dehydrogenation and CO2 formation. These insights provide new possibilities for the design of catalysts with improved catalytic performance.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Environmental Sciences
Amir Ikhlaq, Umar Fiaz, Osama Shaheen Rizvi, Asia Akram, Umair Yaqub Qazi, Zafar Masood, Mobeen Irfan, Khaled A. Alawi Al-Sodani, Mamoona Kanwal, Sami M. Ibn Shamsah, Rahat Javaid
Summary: The increasing water scarcity and depletion of natural resources have led to a challenging situation, pushing the scientific community to find alternative solutions. In this study, a hybrid treatment system was developed for the effective treatment and recycling of automobile service station wastewater. The results showed that the system was efficient for irrigation purposes.
Article
Chemistry, Multidisciplinary
Jianshuo Zhang, Yuki Nakaya, Ken-ichi Shimizu, Shinya Furukawa
Summary: Electric field catalysis using surface proton conduction is an effective method to break the thermodynamic equilibrium limitation in propane dehydrogenation. This study proposes a catalyst design concept by doping Sm into TiO2 surface to increase surface proton density and deposit Pt-In alloy for better proton collision and propylene formation. The results show that doping an appropriate amount of Sm greatly enhances the catalytic activity in electroassisted propane dehydrogenation at low temperature, achieving a propylene yield of 19.3% compared to the thermodynamic equilibrium yield of 0.5%.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Energy & Fuels
Umair Yaqub Qazi, Rahat Javaid
Summary: Allotropes of carbon, including fullerene, carbon nanotubes, and graphene, have contributed to the discovery of three significant carbon-based compounds. Graphene, with its remarkable mechanical, electrical, thermal, and optical functionalities and high surface area, has become the driving force behind new research and development. The synthesis of graphene oxide (GO) and reduced graphene oxide (rGO) has enabled previously impossible applications, such as sensing and adsorption properties. This review paper discusses the most prevalent synthetic methods for producing graphene derivatives and their impact on the material's main features, with a focus on applications in water purification, CO2 capture, biomedical, potential energy storage, and conversion. It also examines the future of sustainable utilization, challenges in large-scale application, and prospects for further research and development of graphene-based derivatives.
Article
Chemistry, Applied
Rahat Javaid, Tetsuya Nanba
Summary: Efficient 1 wt-% Ru/CeO2/MgO catalysts with different Ce/Mg molar ratios were fabricated in this study. Among them, catalysts with Ce/Mg molar ratios of 0.1 and 0.3 showed the highest ammonia yields at 400 degrees C, even surpassing pure CeO2 supported Ru catalyst. Measurement of activation energies and reaction orders revealed that catalysts with Ce/Mg molar ratios of 0.1 and 0.3 had the lowest activation energies and positive values for the H-2 order. H-2-TPR analysis further demonstrated their higher efficiency for Ru reduction at lower temperatures.
TOPICS IN CATALYSIS
(2023)
Article
Chemistry, Physical
Ke Liu, Feilong Xing, Yiying Xiao, Ning Yan, Ken-ichi Shimizu, Shinya Furukawa
Summary: A pseudo-binary alloy catalyst (Ni0.5Co0.5)3Ge/SiO2 has been developed to improve the durability and reusability of dry reforming of methane. The formation of pseudo-binary alloy structure was confirmed through various characterization techniques. The alloy exhibited high catalytic activity and remarkable thermal stability even below the equilibrium conversion, which was attributed to the optimal modification of C-H activation ability by doping Co to Ni3Ge.
Editorial Material
Energy & Fuels
Rahat Javaid, Umair Yaqub Qazi
Article
Environmental Sciences
Zarafshan Ali, Amir Ikhlaq, Umair Yaqub Qazi, Asia Akram, Iftikhar Ul-Hasan, Amira Alazmi, Fei Qi, Rahat Javaid
Summary: This research investigated the efficiency of the catalytic activity of iron and manganese-loaded sodium zeolite for removing disperse yellow 42 dye through ozonation. The impregnation method was used to deposit Fe and Mn on the surface of sodium zeolite. Various factors such as ozone dose, contact time, pH, catalyst dose, and hydroxyl radical scavenger action greatly influenced the efficiency of dye removal. The study also examined the chemical oxygen demand (COD) removal in real textile wastewater and found that catalytic ozonation resulted in a higher efficiency compared to ozonation alone.
Article
Chemistry, Physical
Tayyaba Jamil, Saima Yasin, Naveed Ramzan, Zaheer Aslam, Amir Ikhlaq, Umair Yaqub Qazi, Rahat Javaid
Summary: This study investigates the treatment of real textile wastewater using a novel bentonite clay/TiO2/ZnO-based ozonation catalyst. The results show that the synergic process using the clay/TiO2/ZnO catalyst has the highest removal efficiencies for COD and color in textile wastewater, under specific operating conditions.
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)