Review
Environmental Sciences
Chenglin Feng, Xiaolong Liu, Tingyu Zhu, Mengkui Tian
Summary: This article reviews recent research on the application of noble metal catalysts in the catalytic oxidation of CO, summarizing the effects of catalyst support, dopant, and physicochemical properties on the catalytic activity for CO oxidation. It emphatically discusses the influence of water vapor and sulfur dioxide on the catalytic activity in CO oxidation and presents several reaction mechanisms of CO catalytic oxidation on noble metal catalysts. Finally, the challenges of removing CO by catalytic oxidation in practical industrial flue gas are proposed.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Linda Klag, Abhijeet Gaur, Matthias Stehle, Sebastian Weber, Thomas L. Sheppard, Jan-Dierk Grunwaldt
Summary: This study systematically investigated the activity and selectivity of Bi-Mo-Co-Fe oxide catalysts in selective oxidation of isobutene. The results showed that the activity and selectivity of the catalysts depend on the variety and interaction of metal oxide phases, and the reducibility of Fe3+ is crucial for catalytic activity.
Article
Chemistry, Physical
Xinyue Liu, Weinan Tang, Shujie Liu, Xiong Chen, Yupeng Li, Xiaoying Hu, Liang Qiao, Yi Zeng
Summary: The research focuses on exploring the potential of using graphdiyne (GDY) as a promising substrate for single atom catalysts (SACs) in CO oxidation reactions. The study reveals that CO adsorption on Ni-GDY or co-adsorption of CO and O-2 on Cu-GDY is more favorable than O-2 adsorption, leading to a preference for CO oxidation starting with the LH reaction with a lower energy barrier.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Mingming Luo, Chao Liu, Meiling Liu, Shaik Gouse Peera, Tongxiang Liang
Summary: This study systematically investigated the mechanism of CO oxidation on doped graphene catalysts through DFT calculations, finding that FeFe@C6, FeCo@C6, and FeNi@C6 are efficient for CO oxidation. Additionally, heteronuclear dimeric catalysts FeCo@C6 and FeNi@C6 exhibit better catalytic activity and lower energy barriers compared to homonuclear dimeric catalyst FeFe@C6.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Xilin Zhang, Wenli Kang, Xiaodong Li, Qianqian Peng, Zongxian Yang, Weichao Wang
Summary: This study systematically explores the catalytic properties of a single Pt atom supported on PtS2, PtSe2, PtTe2 for CO oxidation. The results show that Pt1/PtTe2 exhibits the highest activity and provides an important reference for the design of SACs based on TMDs.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Applied
Chun Zhu, Jin-Xia Liang, Yang-Gang Wang, Jun Li
Summary: MXenes have garnered significant attention for their versatile and excellent physicochemical properties, particularly for their potential applications as robust supports for single-atom catalysts. In this study, quantum chemical investigations using density functional theory were conducted to systematically examine the geometries, stability, and electronic properties of oxygen-functionalized Ti2C (Ti2CO2)-supported single-atom catalysts M-1/Ti2CO2 (M = Fe, Co, Ni, Cu, Ru, Rh, Pd, Ag, Os, Ir, Pt, Au). Among the transition metals in groups 8-11, a new non-noble metal single-atom catalyst Fe-1/Ti2CO2 was found to exhibit excellent catalytic performance for low-temperature CO oxidation. Detailed analysis revealed that O-2 and CO adsorption on the Fe-1 atom of Fe-1/Ti2CO2 is favorable. Furthermore, five possible mechanisms for CO oxidation on this catalyst, including Eley-Rideal, Langmuir-Hinshelwood, Mars-van Krevelen, Termolecular Eley-Rideal, and Termolecular Langmuir-Hinshelwood (TLH) mechanisms, were evaluated. Based on the calculated reaction energies for different pathways, it was observed that Fe-1/Ti2CO2 demonstrates excellent kinetics for CO oxidation via the TLH mechanism, featuring a significantly low energy barrier (0.20 eV) for the rate-determining step. These findings establish Fe-1/Ti2CO2 MXene as a highly promising 2D material for constructing robust non-noble metal catalysts.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Florian Maurer, Arik Beck, Jelena Jelic, Wu Wang, Stefan Mangold, Matthias Stehle, Di Wang, Paolo Dolcet, Andreas M. Gaenzler, Christian Kuebel, Felix Studt, Maria Casapu, Jan-Dierk Grunwaldt
Summary: Increasing the Pt surface concentration can decrease the ignition temperature of CO oxidation and enhance the stability of the Pt/CeO2 catalyst. The improved reaction rate at higher Pt surface concentrations is attributed to the formation of larger oxidized Pt clusters and the aggregation of highly dispersed Pt species. The influence of the Pt surface noble metal concentration on the reaction rate is temporarily diminished when Pt particle formation is forced.
Article
Chemistry, Physical
Matthias Stehle, Abhijeet Gaur, Sebastian Weber, Thomas L. Sheppard, Michael Thomann, Achim Fischer, J-D Grunwaldt
Summary: In this study, two Bi-Mo-Co-Fe-O catalysts were synthesized and tested for their catalytic performance in selective oxidation of propylene to acrolein. The structural changes during oxidation and reaction processes were observed using various operando techniques. The formation of different oxide phases and the interaction between MoO3 and other oxides were found to be crucial for high performance. The combination of complementary operando methods bridged the knowledge gap between simplified model systems and complex catalysts.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Colby A. Whitcomb, Anna Sviripa, Michael I. Schapowal, Konstantin Mamedov, Raymond R. Unocic, Christopher Paolucci, Robert J. Davis
Summary: Isolated cobalt ions on nitrogen-doped carbon (Co-N-C) can catalyze CO oxidation at temperatures as low as 196 K. The mechanism for this reaction involves weak adsorption of CO onto Co ions followed by a low barrier for the CO-assisted activation of weakly adsorbed O2. This proposed mechanism does not involve a redox cycle with the transition-metal ion and may be important in other low-temperature catalytic reactions involving O2.
Article
Chemistry, Applied
Zhiyan He, Xiaomei Ning, Guangxing Yang, Hongjuan Wang, Yonghai Cao, Feng Peng, Hao Yu
Summary: This article provides a comprehensive review of recent developments on glycerol selective oxidation over supported noble metal catalysts, with critical attention paid to the influence of metal-support and metal-metal interactions on the catalyst structure and performance, aiming for a better understanding of the reaction mechanism and rational catalyst design.
Article
Chemistry, Physical
Yu-Cheng Huang, Wei Chen, Zhaohui Xiao, Zhiwei Hu, Ying-Rui Lu, Jeng-Lung Chen, Chi-Liang Chen, Hong-Ji Lin, Chien-Te Chen, K. Thanigai Arul, Shuangyin Wang, Chung-Li Dong, Wu-Ching Chou
Summary: The study found that under operando conditions, defect-rich Co3O4's Co (O-h) can be rapidly converted to active low-spin Co4+, a process that cannot be observed ex situ.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Mirko Vanzan, Tiziana Cesca, Boris Kalinic, Chiara Maurizio, Giovanni Mattei, Stefano Corni
Summary: Rare-earth ions sensitization is a relevant topic in modern technologies, and noble metal nanoclusters can effectively enhance lanthanide photoluminescence. Experimental works have shown the importance of nanocluster size and composition in this process. By studying the optoelectronic features of metal clusters and their interaction with defects in the silica matrix, new insights can be gained for designing rare-earth ion sensitizers.
Article
Chemistry, Inorganic & Nuclear
Qi Ouyang, Shichao Cheng, Chunhui Yang, Zuotao Lei
Summary: In this study, Ni,Co,Yb-FeOOH/CC nanorod arrays with high catalytic activity for oxygen evolution reaction (OER) were successfully synthesized. The doping of multiple ions significantly increased the concentration of oxygen vacancies and edge dislocations, which greatly enriched the catalytic active sites. Density functional theory calculations revealed that the doping of multiple ions modulated the electronic structure of the main active sites, leading to a closer d-band center to the Fermi level and a reduced Gibbs free energy change of the rate-determining step of the OER. The Ni,Co,Yb-FeOOH/CC material exhibited low overpotential and a small Tafel slope, showing great potential for practical applications.
INORGANIC CHEMISTRY
(2023)
Review
Chemistry, Physical
Andreas Erbe, Marc Frederic Tesch, Olaf Ruediger, Bernhard Kaiser, Serena DeBeer, Martin Rabe
Summary: Inspired by photosystem II, Mn oxide based electrocatalysts have been studied as catalysts for the electrochemical oxygen evolution reaction (OER). However, there are fundamental differences between biological OER catalyzed by CaMn4Ox and the requirements for an electrocatalyst in industrial applications. In this paper, the challenges and recent insights gained from in situ and operando methods, such as vibrational spectroscopy, absorption techniques, and operando X-ray spectroelectrochemistry, are discussed. Despite technical and Mn specific challenges, three key features, including structural disorder, Mn oxidation states between III and IV, and the appearance of layered birnessite phases, are common to most systems with significant OER activity.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Meloth Bhavisha, Saralabhai Aswani, Awadakkam Sreenavya, P. Purayil Neethu, I. Gopinathan Archana, Sarkarainadar Balamurugan, Venkatachalam Ganesh, Ayyamperumal Sakthivel
Summary: SrBO3-delta (B=Fe & Co) type perovskite oxides and their 25% molybdenum doped counterparts, SrFe0.75Mo0.25O3-delta (SFMO) and SrCo0.75Mo0.25O3-delta (SFCO), were synthesized and characterized. The results showed the formation of pure cubic phase and doped molybdenum in the perovskite crystal lattice. The TPR-H-2 and TGA curves revealed variable oxidation states and the formation of oxygen vacancies. The SFMO catalyst exhibited superior activity for the oxidation of iso-eugenol to vanillin.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Manju Verma, Parag A. Deshpande
Summary: The study confirmed the biomimetic carbonic anhydrase activity of Anatase TiO2 by using density functional theory calculations and experimental spectroscopic analysis.
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
(2021)
Article
Electrochemistry
N. Sethulakshmi, Subramanian Nellaiappan, Phanikumar Pentyala, Manu Sharma, Silvia Irusta, Parag A. Deshpande, Sudhanshu Sharma
Summary: This study investigates the electrocatalytic activity and redox mechanism in mixed metal sulfides, particularly focusing on CuCo2S4. The results demonstrate the synergistic effect of Co and Cu ions in enhancing oxygen evolution reaction (OER) activity, showing promising potential for novel OER catalyst development. The study not only provides insights into the surface redox processes but also offers alternative directions for the search for efficient OER catalysts.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Inorganic & Nuclear
Nilanjan Roy, Saroj Kumari, Ritobroto Sikdar, Anjali Sharma, Harshit, Sivaprasad Ghanta, Sudhanshu Sharma, Parag A. Deshpande, Partha P. Jana
Summary: Ni3GaSb is a compound with specific crystal structure, where the interaction between Ni-Sb and Ni-Ga plays a significant role in its electronic structure and stability. In catalytic activity testing, Ni3GaSb shows high selectivity towards acetylene hydrogenation reaction.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Review
Engineering, Chemical
Manju Verma, Gaurav A. Bhaduri, V. Sai Phani Kumar, Parag A. Deshpande
Summary: The effects of climate change are becoming increasingly evident, prompting the need for urgent action. Carbon capture utilization and storage (CCUS) represents an effective step towards mitigating climate change. Research on CO2 hydration catalysts focuses on enhancing reaction rates and reducing production costs for industrial applications.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Multidisciplinary Sciences
Shashi Kumar, Parag A. Deshpande
Summary: This study investigates the thermodynamic stability of SazCA protein through molecular dynamics simulations in a temperature range of 293-393 K, revealing that the protein exhibits the highest structural stability at 353 K with increased flexibility at temperatures above. Analyses indicate that conformations at 353 K demonstrate the highest thermal stability and folding capacity, supporting a transition in folding/unfolding pathway at this temperature.
Article
Engineering, Chemical
Phanikumar Pentyala, Pinak Bhusan Mohapatra, Parag A. Deshpande
Summary: The study utilizes van der Waals-corrected density functional theory calculations to investigate the energetics of interactions between shale minerals and methane, carbon dioxide, providing detailed mechanisms behind the displacement of methane by carbon dioxide, conclusively proving the stronger adsorption of CO2 and the kinetic feasibility of its displacement, offering insights into the successful CO2 sequestration during enhanced gas recovery processes.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Chemistry, Physical
Anuj Bisht, Pradeep Kumar Yadav, Shikha Dhakar, Sudhanshu Sharma
Summary: This study investigates the role of Pt4+ in Pt-doped La1-xSrxCoO3 perovskite for oxygen evolution reaction (OER) activity. Results show that Pt in the +4 oxidation state exhibits the highest OER activity. High-valent Pt is identified as a key factor in fabricating an active OER catalyst.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Engineering, Chemical
Phanikumar Pentyala, Parag A. Deshpande
Summary: This study investigates the mechanism and pathway selectivity of anodic oxidation of HCOOH over La1-xSrxCoO3 using density functional theory calculations. The results indicate that the formate-mediated direct oxidation and carboxyl-mediated direct oxidation routes are not feasible, while the surface isomerization of trans- to cis-HCOOH is the dominant reaction pathway.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Physical
K. S. S. V. Prasad Reddy, Parag A. Deshpande
Summary: In this study, the activity of small Pd-n clusters immobilized on graphene supports for the oxidative addition of bromobenzene was investigated. The results showed that defected graphene supports act as charge donors, significantly reducing the activation barriers of oxidative addition and making them potential heterogeneous catalysts for cross-coupling reactions.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Physical
Phanikumar Pentyala, Vibhuti Singhania, Vinay Kumar Duggineni, Parag A. Deshpande
Summary: This study employed machine learning-assisted DFT calculations to identify a set of descriptors influencing the vacancy formation energy, including metal-vacancy and metal-metal distances, and partial charges on the ions in the system. The results conclusively inferred the partial charge on Pd to be the most important factor influencing the vacancy formation energy in such solid solutions with the partial charge on Zr to play a supportive role.
MOLECULAR CATALYSIS
(2022)
Article
Biochemistry & Molecular Biology
Shashi Kumar, Parag A. Deshpande
Summary: The fastest member of carbonic anhydrase family, SazCA, has been reported to exhibit exceptional activity in the reversible hydration reaction of carbon dioxide. This study explores the molecular basis for the difference in activity between SazCA and SspCA using molecular dynamics simulations. Our simulations reveal the presence of efficient proton shuttle between the active zinc center and His64 residue in both enzymes. However, SazCA shows a larger population of conformation favoring proton acceptance, leading to its exceptional activity.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2022)
Article
Chemistry, Physical
Pradeep Kumar Yadav, Kalyani Patrikar, Anirban Mondal, Sudhanshu Sharma
Summary: Mono metal (Ni, Co)-substituted (in) and supported (on) CeO2 catalysts were prepared and characterized for the dry reforming of methane (DRM). Co-substituted CeO2 exhibited the highest stability under DRM conditions at 800°C. Carbon deposition on the spent catalysts was found to be the cause of deactivation. Transient studies confirmed that the reaction CO2 + C -> 2CO played a major role in the catalyst's stability. DFT calculations showed that Co-substituted CeO2 had lower vacancy formation energy compared to Ni-substituted CeO2, indicating higher availability of surface oxygen for oxidation.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Physical
Manju Verma, V. Sai Phani Kumar, Shashi Kumar, Parag A. Deshpande
Summary: The mechanistic details of CO2 hydration activities of four boronic acids were investigated using density functional theory calculations, with 2,6-dibromophenylboronic acid showing the highest turnover frequency. Computational NMR and FTIR spectra analysis confirmed the biomimetic mechanism for CO2 hydration over all the boronic acid catalysts under investigation.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
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)
