Article
Materials Science, Multidisciplinary
Iqra Ameen, Sadia Iqbal, Murid Hussain, Asma A. Alothman, Huda A. Algahtani, Mohammed Sheikh Saleh Mushab, Amjad Iqbal, Shehla Perveen, Sara Musaddiq
Summary: In this study, a plant mediated synthesis method was used to prepare Metal/metal oxide@Reduced graphene oxide nanocomposites, including silver, gold, and zirconia. These nanocomposites showed high catalytic activity in Suzuki cross-coupling reaction between aryl halides and phenylboronic acid, achieving comparable yields to palladium-based catalysts. The enhanced reactivity of the reduced graphene oxide substrate contributed to the successful coupling reaction.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Chemistry, Multidisciplinary
Seema P. P. Patil, Sanjay N. N. Jadhav, Firoz A. A. Inamdar, Mohd Aatif Ameen, Chandrashekhar V. V. Rode, Archana S. S. Rajmane, Arjun S. S. Kumbhar
Summary: In this study, a Pd nanoparticle immobilized on an amine-functionalized LDH catalyst (PdNP@NH2LDH-Al-MCM-41) was developed for cross-coupling reactions. The catalyst was prepared by grafting palladium onto the support using NH2-LDH-Al-MCM-41 in acetone. Characterization techniques such as FT-IR, SEM, TGA, TEM, and XPS were used to analyze the prepared catalyst. The catalytic efficiency of the PdNPs@NH2-LDH-Al-MCM-41 catalyst was demonstrated through the Suzuki-Miyaura cross-coupling reaction, showing good to excellent activity, recoverability, and stability.
Article
Chemistry, Physical
Thuy Phuong Nhat Tran, Thanh Nhat Nguyen, Toshiaki Taniike, Shun Nishimura
Summary: By tailoring graphene oxide frameworks with heteroatom-containing organic ligands, highly recyclable Pd catalysts were achieved for the Suzuki-Miyaura cross-coupling reaction through efficient confinement of Pd nanoparticles inside the frameworks, resulting in high activity and recyclability.
Article
Chemistry, Organic
Mahsa Niakan, Majid Masteri-Farahani
Summary: In this study, a novel dendritic structure was grown on the surface of magnetic graphene oxide nanocomposite through thiol-ene click reaction. The resulting nanocomposite was used as a support for immobilizing Pd-Ni bimetallic nanoparticles, which showed excellent catalytic activity in Suzuki-Miyaura coupling reaction. The dendritic structure facilitated fast adsorption of reactants, while the synergistic effect between Pd and Ni nanoparticles further enhanced the catalytic activity.
Article
Chemistry, Physical
Turbasu Sengupta, Michael Moody, Mrinmoy Das, Arthur C. Reber, S. N. Khanna, M. Samy El-Shall
Summary: The catalytic activity of Pd and PdCu nanoparticle catalysts supported on RGO and GA for the Suzuki cross-coupling reaction was investigated experimentally and computationally. The experimental results showed that the PdCu/RGO catalyst exhibited superior activity, and the computational results supported the better support ability of RGO for the C-C coupling reaction.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Physical
Xueqin Sun, Jiabin Liu, Ruirui Ren, Bowen Yang, Tiesheng Li, Minghua Liu, Yangjie Wu
Summary: A Chanel-like diaminopyridine Pd(II) catalytic monolayer supported on Graphene Oxide (GO@DAP-Pd) was prepared and characterized. The catalytic activity of GO@DAP-Pd in Suzuki coupling reaction was explored with different palladium sources, which resulted in different sizes of Pd nanoparticles and influenced the catalytic activity. GO@DAP-Pd1 fabricated with (C6H5CN)2PdCl2 as Pd source exhibited higher catalytic activity and reusability. The catalytic mechanism at the interface involving substrate adsorption, intermediate formation, and product desorption was studied.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Nanoscience & Nanotechnology
Xueyan Sun, Shaofeng Li, Jinzhe Cao, Yuchao Wang, Wenbo Yang, Lijing Zhang, Yijin Liu, Jieshan Qiu, Shengyang Tao
Summary: The integration of catalytic production and separation of biphenyl (with a purity of 99.7%) was successfully achieved by combining Suzuki cross-coupling reactions and crystallization separation. A hierarchical-structured impeller loaded with Pd nanoparticles on Ni(OH)(2) nanosheets catalyzed the reactions with high turnover frequency (TOF) value of 25,976 h(-1) and a yield of 99.5%. X-ray absorption fine structure (XAFS) analysis revealed that enhanced catalytic activity was due to electron transfer between the Pd nanoparticles and Ni(OH)(2).
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Shasha Wang, Kuan Gao, Yang Cui, Shuwen Li, Heyao Zhang, Bin Zhang, Jie Wu, Hongwei Hou, Shuangquan Zang
Summary: This study successfully achieved spatial separation of photoinduced charge carriers through the design and synthesis of a special heterojunction, leading to improved efficiency of the catalytic reaction. The obtained material exhibited high activity in oxidative coupling reaction and achieved high conversion rates under both aerobic and anaerobic conditions.
Article
Chemistry, Physical
Dan Liu, Yinchao Yao, Zhiyi Sun, Zhonghua Xia, Zhuo Chen
Summary: In this study, a simple light irradiation approach was used to achieve highly efficient Suzuki coupling reaction using a low valence Pd homogeneous catalyst. The impact of various experimental conditions on catalytic performance was systematically investigated, and the evolution of Pd species during light irradiation and catalytic reaction process was clarified.
MOLECULAR CATALYSIS
(2023)
Article
Engineering, Environmental
Antonysamy Jeyaseelan, Ayman A. Ghfar, Mu Naushad, Natrayasamy Viswanathan
Summary: The study developed amine functionalized graphene oxide (AGO) with high defluoridation capacity for fluoride removal. Through optimization of parameters and investigation of adsorption isotherms, kinetics and thermodynamics, the fluoride removal mechanism of AGO was found to be electrostatic attraction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Chunhua Wang, Bo Weng, Masoumeh Keshavarz, Min-Quan Yang, Haowei Huang, Yang Ding, Feili Lai, Imran Aslam, Handong Jin, Giacomo Romolini, Bao-Lian Su, Julian A. Steele, Johan Hofkens, Maarten B. J. Roeffaers
Summary: The development of improved catalysts for Suzuki coupling reaction has gained significant attention. Recent findings suggest that the use of photoactive catalysts enhances performance, but the reaction mechanism and temperature-dependence of such systems are still debated. In this study, Pd nanocubes/CsPbBr3 are reported as efficient catalysts for photothermal Suzuki reaction, and the contributions of light and heat to catalytic performance are investigated.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Applied
Rama Moorthy Appa, Padmasale Raghavendra, Jangam Lakshmidevi, Bandameeda Ramesh Naidu, Loka Subramanyam Sarma, Katta Venkateswarlu
Summary: This study examines the suitability of water extract of pomegranate ash as an effective medium for a heterogeneous reduced graphene oxide-supported Au-Pd bimetallic nanoparticles in catalyzing Suzuki coupling reactions at room temperature. The core-shell structured Au@Pd NPs/rGO exhibit good catalytic performance and can be easily recovered and reused for multiple cycles.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Mahsa Niakan, Majid Masteri-Farahani, Sabah Karimi, Hemayat Shekaari
Summary: The synthesis of biphenyls through the Suzuki-Miyaura coupling reaction remains a challenge in green chemistry. In this study, a heterogeneous Pd catalyst was successfully synthesized using a green approach, allowing for the production of biphenyls in deep eutectic solvents. By incorporating cellulose into the catalyst structure, the catalytic activity was enhanced, leading to high yields of the desired products.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Biochemistry & Molecular Biology
Hojat Veisi, Zeinab Joshani, Bikash Karmakar, Taiebeh Tamoradi, Majid M. Heravi, Javad Gholami
Summary: Recent advancements in nanomagnetic biocomposites as sustainable green catalysts have led to the design and synthesis of a novel Pd NP adorned chitosan-starch dual biopolymer encapsulated core-shell type magnetic nanocomposite. This material showed excellent catalytic efficiency in Suzuki-Miyaura coupling and catalytic reduction processes, with sonication playing a key role in enhancing catalytic performance. Additionally, the material's super-paramagnetism allowed for easy magnetic isolation and reuse in multiple cycles without significant leaching or loss in reactivity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Multidisciplinary
Surbhi Sharma, Manpreet Kaur, Chandan Sharma, Shally Sharma, Satya Paul
Summary: The study utilized cotton fabric containing hydroxyl groups as a support material for Pd(0) nanoparticles immobilization, achieving successful application in various organic reactions with easy recycling and stable performance.
Review
Chemistry, Organic
Hari Babu Bollikolla, S. N. Murthy Boddapati, Swetha Thangamani, Baby Ramana Mutchu, Mohammed Mujahid Alam, Mohamed Hussien, Sreekantha Babu Jonnalagadda
Summary: This review article presents various synthetic strategies for the preparation of benzotriazole and its derivatives, and provides a brief overview of their bio applications and pharmacological activity.
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Buri Apparao, Alice R. Robert, Muthyala Murali Krishna Kumar, Rama Krishna Madaka, Pamerla Muralidhar, Suresh Maddila, Sreekantha B. Jonnalagadda
Summary: This study describes a facile, eco-friendly, and efficient approach for the multicomponent synthesis of 2-amino-pyran analogues using rutheia-doped alumina as a heterogeneous catalyst. The key benefits of this protocol include operational simplicity, economy, green reaction conditions, and high product yields. Additionally, the catalyst material can be recycled and reused up to eight runs without any significant loss of catalytic activity.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Chemistry, Multidisciplinary
Neha Kumari, Sudhakar Chintakula, Immandhi Sai Sonali Anantha, Suresh Maddila
Summary: In this study, a poly3-thenoic acid assisted P3TA/Fe doped TiO2 nano-hybrid was prepared via sol-gel approach for photocatalytic degradation of brilliant green (BG) dye. The results showed that 0.20 g of P3TA/Fe-TiO2 at pH 10 efficiently degraded 10 mg/L BG dye solution under visible light irradiation, and also exhibited antibacterial activity against E.coli and S.aureus.
RESULTS IN CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Komati Satish Kumar, Alice Rinky Robert, Nagaraju Kerru, Suresh Maddila
Summary: We have developed a facile and efficient method for synthesizing morpholino-linked 1,4-dihydropyridine derivatives. By combining morpholin-4-amine, diethyl acetylene dicarboxylate, malononitrile, and chosen substituted benzaldehydes under mild conditions in the presence of potassium carbonate as a catalyst, we achieved excellent yields (92-98%) with easy handling, simple workup, and shorter reaction time (<= 10 min), while avoiding the need for column chromatography for purification.
RESULTS IN CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Chittala Subrahmanyam, Battula Sreenivasa Rao, Badampudi Santosh Kumar, Suresh Maddila
Summary: An efficient and eco-friendly copper loaded hetero-poly-acid [Cu5(PW10V2O40)2] nano-catalystic complex was developed for the synthesis of poly substituted 1,4-dihydropyridines. The successful synthesis of the nanocomposite was confirmed through various techniques. This approach offers easy handling, commercial availability of starting materials, cost-effectiveness, short reaction times, high to excellent efficiencies, simple catalyst separation, recyclability, no purification of products, and safe and green solvent use.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Leela Prasad Kowtharapu, Naresh Kumar Katari, Christian A. Sandoval, Naresh Konduru, Siva Krishna Muchakayala, Surya Prakash Rao Pydimarry, Sreekantha Babu Jonnalagadda
Summary: This study evaluates the qualitative and quantitative formulas for nasal spray and ophthalmic solution formulations of olopatadine HCl using classical and instrumental techniques. The study accurately quantifies the reverse engineering of olopatadine HCl nasal spray and ophthalmic solution formulations using HPLC, osmometry, and titration techniques. The results show that the methods used are linear, accurate, precise, and specific, with good recovery rates and low relative standard deviations.
Review
Chemistry, Multidisciplinary
Neha Agarwal, Vijendra Singh Solanki, Brijesh Pare, Neetu Singh, Sreekantha B. Jonnalagadda
Summary: Present times face various environmental, atmosphere, and energy-related issues. Efficient catalysts and eco-friendly materials are capable of solving these problems effectively. The development of nano-based advanced catalysis has created new opportunities, as nanocatalysts with their small size and larger surface area offer superior interfaces and expanded functionality, attracting global attention. Extensive research on nanomaterials' size and properties has shifted the paradigm towards using materials with superior activity and selectivity as catalysts. Affordable and eco-friendly nanocatalysis is becoming increasingly popular, hence the need to understand their remarkable properties and applications. This review focuses on explicit properties of nanocatalysts due to their size, structure, and their applications in reducing environmental issues.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Challa Madhavi, Suresh Maddila, Palakondu Lavanya, Sreekantha B. Jonnalagadda
Summary: A mesoporous CeO2 doped HAp nanocomposite was synthesized and its catalytic potential in the facile synthesis of 1,4-dioxo-1,4-dihydronaphthalen-2-yl-1,4-dihydropyridine analogues was investigated. Characterization of the nanocomposite was carried out using various techniques. The synthetic route offered a broad substrate scope, mild reaction conditions, excellent yields, use of non-toxic solvents, and no need for column chromatography. The nanocomposite showed good recyclability with no significant loss in its catalytic activity after seven runs.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Kotyada Suryanarayana, Kranthi Kumar Gangu, Nagaraju Kerru, Kavita Khatana, Botcha Satyanarayana, Suresh Maddila
Summary: A series of quinoline-linked rhodanine-bearing 1,2,3-triazole analogs were designed and synthesized. The novel hybrids were characterized by spectroscopic analysis. Compound 10c showed higher anticancer activity than Combretastatin-A4, with IC50 values of 3.67, 3.93, 4.92, and 6.83 μM against MCF7, Caco-2, HeLa, HT-29, and Caco-2 cancer cells, respectively. This study reveals the potential of quinoline-linked rhodanine-bearing 1,2,3-triazole scaffolds as antitumor agents.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2023)
Review
Chemistry, Physical
Thirupathi Damera, Ramakanth Pagadala, Surjyakanta Rana, Sreekantha Babu Jonnalagadda
Summary: Microwave energy has been fascinated as an alternative technique for the construction of heterocycles, with heterogeneous catalysts providing advantages in terms of recycling, catalyst preparation, and product yields. The usage of microwave energy has rapidly increased in various fields such as organic synthesis, peptide synthesis, polymer chemistry, material sciences, nanotechnology, and biological processes. This article covers the applications of microwave-assisted heterogeneous catalytic reactions in the construction of chromenes, pyridines, pyrroles, triazoles, pyrazoles, tetrazoles, trans and cis julolidines.
Article
Chemistry, Multidisciplinary
Panasa Mahesh, Parameswari Akshinthala, Naresh Kumar Katari, Lavleen Kumar Gupta, Dikshita Panwar, Manoj Kumar Sharma, Sreekantha Babu Jonnalagadda, Rambabu Gundla
Summary: In this study, two new series of 3,5-dimethyl-1H-pyrazole-4-sulfonamide and 1,3,5-trimethyl-1H-pyrazole-4-sulfonamide derivatives were designed and synthesized. These derivatives were characterized by various analytical techniques and their biological evaluation data were presented, paving the way for the development of new pyrazole-4-sulfonamide derivatives.
Article
Chemistry, Multidisciplinary
Neha Kumari, Sudhakar Chintakula, Immandhi Sai Sonali Anantha, Suresh Maddila
Summary: Indigo carmine is used in medical diagnostics, as a textile colouring agent, and as a component in pharmaceutical tablets and capsules. Photo catalysis using poly-3-thenoicacid/Ni-TiO2 nanohybrids shows effective degradation of dye pollutants and antibacterial activity against Staphylococcus aureus and Escherichia coli.
RESULTS IN CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Ganeshbabu Bathula, Surjyakanta Rana, Siddaramagoud Bandalla, Vijaykumar Dosarapu, Satyanarayana Mavurapu, V. V. Aswathi Rajeevan, Bhaskar Sharma, Sreekantha B. Jonnalagadda, Mallesham Baithy, Chandra Shekar Vasam
Summary: This study demonstrates the high efficacy of WOx-promoted CeO2-SiO2 and CeO2-ZrO2 mixed oxide catalysts in the selective oxidation of benzyl alcohol to benzaldehyde. The WOx/CeO2-SiO2 catalyst, characterized by improved physicochemical properties and a higher number of oxygen vacancies, exhibited superior conversion and selectivity compared to other catalysts. Additionally, this catalyst showed excellent recyclability without significant activity loss.
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)