Article
Chemistry, Analytical
Veeresh A. Sajjan, Shambhulinga Aralekallu, Manjunatha Nemakal, Manjunatha Palanna, C. P. Keshavananda Prabhu, Lokesh Koodlur Sannegowda
Summary: In this study, a Schiff-base embedded cobalt (II) complex was successfully prepared and characterised, followed by modification of glassy carbon electrode for the electroanalytical detection of 4-nitrophenol. The GCE/CoTTIMPPc exhibited excellent performance in terms of stability, sensitivity, reproducibility and reliability, demonstrating its potential for environmental monitoring applications.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Physical
Yue Du, Wenxue Chen, Zhiyi Zhong, Shizhu Wang, Lina Zhou, Dongbin Xiong, Yisi Liu, Zhenhui Liu, Kai Wang
Summary: An in-situ polyaniline nitriding strategy was developed to fabricate WN-Ni heterostructured catalysts with excellent activity towards both ORR and OER. The as-fabricated WN-Ni catalyst exhibited a half-wave potential of 0.76 V for ORR and an over-potential of 1.68 V at 10 mA cm-2 for OER. The assembled rechargeable ZAB using this catalyst achieved a high power density of 165 mW cm-2 and showed outstanding stability after > 400 hours of discharge-charge cycles. The excellent activity of the WN-Ni catalyst can be attributed to its hierarchical nanorod-nanoparticle structure, proper crystallinity, and good charge/mass transfer ability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Fanghui Wei, Min Luo, Jiao Lan, Feng Xie, Lebin Cai, Ting-Shan Chan, Ming Peng, Yongwen Tan
Summary: In this study, an atomic Pd-doped nanoporous Ni/NiO catalyst was developed for efficient nitrophenol hydrogenation reaction. The catalyst exhibited excellent specific activity, high selectivity, and reproducibility. The catalytic performance was influenced by the Ni sites and the metal/metal oxide interfacial structure. The atomic dopants effectively modulated the electronic structure and reduced the energy barrier of the hydrogenation reaction.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Xikun Zhang, Xue Lv, Ting Xie, Yanwen Cheng, Jiajia Zhang, Xiaoyan Xu
Summary: In this study, a new hydrogel structure was synthesized with improved mechanical properties. The hydrogel displayed high tensile strength and toughness, making it suitable as a template for stable silver nanoparticles and a catalyst for reduction reactions. The composite hydrogel exhibited fast catalysis, high efficiency, stable cycling, and adjustable catalytic activity, which could be significant in the wastewater treatment industry.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Chemistry, Applied
Diana Guerrero-Araque, David Ramirez-Ortega, Hector A. Calderon, Jose M. Saniger, Ricardo Gomez
Summary: CoO, NiO, and CuO oxides were utilized as co-catalysts on Bi2O3-TiO2 structure for photocatalytic reduction of 4-nitrophenol, leading to improved activity through the formation of p-n heterojunctions. CuO-BT exhibited the highest reduction efficiency among the tested catalysts.
TOPICS IN CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Imane Ghiat, Adel Saadi, Kkaldoun Bachari, Neil J. Coville, Amel Boudjemaa
Summary: NiO/SiO2 derived from SiO2@NiPhy exhibited excellent catalytic activity for the reduction of 4-nitrophenol using NaBH4 as a reducing agent. The catalysts were characterized by various techniques, and the results showed the formation of NiO nanoparticles after reduction. The catalytic activity was found to be related to the formation of NiO particles. Optimization of reaction conditions led to a conversion yield of > 98%. The rate constant and activation energy were determined to be 0.109 min(-1) and 15.84 kJ/mol, respectively.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Polymer Science
Siqin Jia, Qiguan Wang, Sumin Wang
Summary: The flower-like carbon and nitrogen atomic doped NiO nanocomposite derived from Ni-MOF/polyaniline (PANI) through high temperature calcination is a promising electrochemical sensing material with high sensitivity, low detection limit, long-term stability, and excellent selectivity, making it suitable for nonenzymic electrochemical recognition and detection applications.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Environmental Sciences
Min Sun, Xiong-Fei Tao, Sheng-Nan Tang, Jun Yu, Yan Wang, Lin-Feng Zhai
Summary: A novel biomass-based three-dimensional (3D) Ni@NiO/carbon composite is utilized for the electro-activation of oxygen (O-2) to remove pollutants. The composite demonstrates excellent degradation capability for organic pollutants with low energy consumption.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Fan Zhang, Renjie Ji, Xiaoyang Zhu, Hongke Li, Yating Wang, Jingpeng Wang, Fei Wang, Hongbo Lan
Summary: This study proposes a collaborative strategy based on defect induction and doping to prepare strain-regulated Pt-NiO@Ni sub-micron particles. These particles with tensile strain and Pt-doped can effectively optimize the electronic distribution of atomic structures in Pt and NiO on the surface, reducing the energy barrier of intermediates for ORR and OER. As a result, the Pt-NiO@Ni SP exhibits outstanding bifunctional catalytic activity and the Pt-NiO@Ni SP-based liquid zinc-air battery shows high open-circuit potential, excellent energy density, and favorable cyclic charge-discharge cycling durability. This work provides an innovative avenue for the rational construction of highly active bifunctional electrocatalysts for practical applications.
Article
Materials Science, Multidisciplinary
Xiaoqing Ma, Kang-lai Tang, Mingyu Yang, Wenbing Shi, Wenxi Zhao
Summary: In this study, yolk-shell hollow Ni/NiO@C microspheres were successfully template-synthesized using Ni-MOF, displaying a unique structure with rich pore openings. The microspheres were used as a bifunctional electrocatalyst for glucose oxidation and H2O2 reduction, showing wide linear ranges, high sensitivity, and the ability to quantitatively detect glucose in blood serum and monitor H2O2 in neutral situations.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Murugavelu Marimuthu, Huanhuan Li, Quangsheng Chen
Summary: A facile ultrasonically driven Silver based bimetallic nanoparticles (BNPs) were synthesized in high yield by chemical reduction technique and showed excellent catalytic efficiency. The AgPd BNPs exhibited the highest catalytic efficiency, attributed to the synergistic effects of high surface area, porous and hollow structures.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Wei Peng, Zeyuan Kuai, Jin Peng, Wenyuan Guo, Huiyong Li, Chang Peng, Shu Chen
Summary: In this study, a novel MXene-supported gold nanoparticles composite was synthesized using the cationic polymer PDDA as a stabilizer. The PDDA polymer bridged the MXene nanosheet and gold nanoparticles, resulting in uniform distribution of AuNPs and efficient control over their particle size. The composite catalyst showed high catalytic activity and stability, making it a promising catalyst for various applications.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Peicheng Jiang, Wenyuan Guo, Jin Peng, Wei Peng, Huiyong Li, Chang Peng, Shu Chen
Summary: Researchers prepared a novel transition metal carbidessupported bimetallic Ag/Cu nanoparticles composite (Ag/Cu/MXene) catalyst by one-pot reduction method. The MXene carrier effectively promoted the riping and immobilization of bimetallic Ag/Cu nanoparticles. The composite catalyst showed high catalytic activity for the reduction of 4-nitrophenol (4-NP) due to improved electron transfer capacity, with a turnover frequency (TOF) of 1127.2 h-1.
Article
Materials Science, Multidisciplinary
Ozkan Aydin
Summary: This study presents a high-efficiency Ni5-NiO(0.5mg)@Ru30 catalyst for hydrogen production via water electrolysis, showing an overpotential of 80 mV and hydrogen production capacity of 86 mL cm-2 at a current density of 200 mA cm-2.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Yuchao Lyu, Weilong Zhan, Zhumo Yu, Xinmei Liu, Ye Yang, Xiaoxing Wang, Chunshan Song, Zifeng Yan
Summary: A facile one-pot synthesis method was used to prepare Ni-SAPO-11 hydroisomerization catalyst with excellent metal-acid synergy, featuring highly dispersed nickel nanoparticles and more strong acid sites, leading to better activity and selectivity compared to traditional catalysts.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
A. Padmanaban, T. Dhanasekaran, S. Dhanavel, R. Manigandan, M. Senthil Pandian, P. Ramasamy, D. Balaganesh
Summary: The study demonstrates a novel nanomaterial constructed using a hydrothermal-assisted strategy for efficient removal of toxic dyes. This material shows superior photocatalytic performance in degrading toxic dyes effectively.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Inorganic & Nuclear
K. Suresh Babu, A. Padmanaban, V. Narayanan
Summary: Au decorated zinc oxide with rod-like structure was synthesized and showed enhanced electrocatalytic properties for Gallic acid sensing in medium pH conditions.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Review
Environmental Sciences
A. K. Priya, C. Subha, P. Senthil Kumar, R. Suresh, Saravanan Rajendran, Yasser Vasseghian, Matias Soto-Moscoso
Summary: A microbial fuel cell is a sustainable device that produces electricity. Its performance is influenced by various factors such as cell design, operation parameters, substrate characteristics, and the presence of microbes. It can be scaled up and commercialized using low-cost materials, and different types of materials have been used. This review describes modified electrodes, their advantages, and power density.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
R. Suresh, N. S. Karthikeyan, Lalitha Gnanasekaran, Saravanan Rajendran, Matias Soto-Moscoso
Summary: CuO loaded g-C3N4 nanocomposites were prepared by a simple calcination method. The formation of CuO nanocrystals on g-C3N4 was confirmed by XRD, FTIR, and XPS analyses. The addition of CuO nanoparticles reduced the band gap and showed high catalytic efficiency in the reduction of 4-NP and MO.
Article
Environmental Sciences
Lalitha Gnanasekaran, R. Suresh, Saravanan Rajendran, Wei-Hsin Chen, Matias Soto-Moscoso
Summary: In this study, the degradation efficiency of textile dyes by pure cobalt oxide and nickel cobaltite under visible light irradiation was investigated. The synthesized nickel cobaltite showed higher crystallinity and visible light absorption compared to pure cobalt oxide. The excellent degradation efficiency of nickel cobaltite makes it a promising visible light catalyst.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Kanagarathinam Saravanan, Balasubramanian Shanthi, Cingaram Ravichandran, Bakthavachalam Venkatachalapathy, Kulathu Iyer Sathiyanarayanan, Saravanan Rajendran, Natesan Sundaramurthy Karthikeyan, Ranganathan Suresh
Summary: Synthesis of aluminium-based nanomaterials from aluminium waste is a hot topic in current scientific research. In this study, aluminium foil food containers were successfully converted into aluminium oxyhydroxide nanoparticles through a precipitation method. The catalytic potential of these nanoparticles in dye reduction was evaluated and found to be highly efficient.
ENVIRONMENTAL RESEARCH
(2023)
Article
Energy & Fuels
R. Suresh, Saravanan Rajendran, Kingshuk Dutta, Kuan Shiong Khoo, Matias Soto-Moscoso
Summary: The aviation industry plays a vital role in global economic growth and social development, but it has negative impacts on the environment. Therefore, the industry is seeking sustainable and clean fuel options, and hydrogen energy is considered a promising choice due to its remarkable advantages. This review focuses on various light assisted hydrogen production techniques, including photofermentation, photochemical methods, and light assisted electrochemical methods. The potential use of wastes as feedstock in these methods and the importance of nanomaterials in light assisted hydrogen production techniques are discussed. The review also explores advancements in improving the rate and yield of hydrogen production, and proposes current challenges for advancing research in this field.
Review
Chemistry, Applied
R. Suresh, Saravanan Rajendran, Kuan Shiong Khoo, Matias Soto-Moscoso
Summary: In recent years, there has been a significant increase in research studies on enzyme immobilized materials for water pollution monitoring and remediation. This review examines the use of enzymes immobilized on nanomaterials for electrochemical sensing and biocatalytic degradation of water pollutants. Advantages and methods of enzyme immobilization on nanomaterials are discussed, as well as the sensing performances and biocatalytic properties of these materials towards various organic pollutants. The review also highlights the significance of nanomaterials in enzymatic sensing and catalytic degradation, identifies current challenges, and provides directions for further research.
TOPICS IN CATALYSIS
(2023)
Review
Environmental Sciences
R. Suresh, Saravanan Rajendran, Lalitha Gnanasekaran, Pau Loke Show, Wei-Hsin Chen, Matias Soto-Moscoso
Summary: This review investigates the application of PVDF-based nanomembranes in the removal of synthetic dyes. Various methods, including surface coating and blending, were discussed for fabricating high performance PVDF-based nanomembranes. The incorporation of nanomaterials such as metal compounds, metals, (synthetic/bio)polymers, metal organic frameworks, carbon materials and their composites in PVDF membranes to enhance their performance was also explored. The impact of nanomaterials on the surface features, mechanical strength, hydrophilicity, crystallinity, and catalytic ability of PVDF membranes was discussed, along with future research directions.
Article
Electrochemistry
S. Munusamy, Ramesh Poonchi Sivasankaran, K. Sivaranjan, P. Sabhapathy, V. Narayanan, Faruq Mohammad, Suresh Sagadevan
Summary: This study investigated the electrochemical sensing behavior of a GaN-PANI-PPy hybrid composite for mebendazole (MBZ). The synthesized MBZ drug was detected using a GaN-PANI-PPy modified glassy carbon electrode, showing linear responses in the concentration range of 3 x 10-7 - 9 x 10-8 M with a sensitivity of 3.02 mu A/mu M cm-2. The prepared GaN-PANI-PPy electrode exhibited good reproducibility, long-term stability, and anti-interference ability, making it suitable for the electrochemical sensing detection of MBZ in liquid samples such as anti-helthiminic drug milk.
ELECTROCHIMICA ACTA
(2023)
Article
Energy & Fuels
R. Suresh, Lalitha Gnanasekaran, Saravanan Rajendran, Matias Soto-Moscoso
Summary: A green and sustainable energy resource, hydrogen (H2), can be generated via photocatalytic splitting of water to meet global energy demand and minimize environmental pollution. Doped photocatalysts have been extensively studied for their application in water splitting. The influence of metal/non-metal dopants on the properties of host semiconductors was deduced, and the water splitting capacity of metal and non-metal ions doped photocatalysts was discussed. Different host photocatalysts, experimental conditions, and strategies for enhancing activity were summarized, along with challenges, future directions, and conclusions.
Article
Biotechnology & Applied Microbiology
R. Suresh, Lalitha Gnanasekaran, Saravanan Rajendran, Matias Soto-Moscoso, Wei-Hsin Chen, Pau Loke Show, Kuan Shiong Khoo
Summary: In recent years, the combination of photocatalysis and other water purification techniques has emerged as an effective method for decontaminating polluted water. This article provides an overview of adsorptive photocatalysis, photo-Fenton, photo-electrocatalysis, photocatalytic ozonation, sono-photocatalysis, and photo-piezocatalytic techniques developed for degrading organic water pollutants. The use of nanocomposites in the degradation of various organic pollutants through integrated photocatalysis is reviewed, along with the catalytic performances of different nanocomposites and the experimental parameters. The article also introduces the integration of multiple techniques with photocatalysis. The challenges, future perspectives, and conclusions of this literature survey are summarized, providing benefits for researchers in the field of photocatalytic water treatment.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Chemistry, Physical
Ravi Aswini, Annamalai Padmanaban, K. R. Acchutharaman, Durairaj Sivaraj, Sankar Vigneshwaran, Hector Valdes, Saravanavadivu Arunachalam
Summary: In this study, Bi2O3 nanoparticles with and without fuels were prepared using a solid-state combustion method. The presence of fuel greatly influenced the properties of Bi2O3, leading to enhanced photocatalytic performance for the degradation of acid blue 25. The improved properties were attributed to factors such as narrow band gap, high crystallinity, unique morphology, and light stability.
SURFACES AND INTERFACES
(2023)
Article
Multidisciplinary Sciences
Jeffrey Joseph John Jeya Kamaraj, Padmanaban Annamalai, Lawrence Daniel Stephen Tamil, Senthil Pandian Muthu, Ramasamy Perumalsamy, Hector Valdes
Summary: The ZnTiO3 material was synthesized using the sol-gel method with ethanol as the solvent. Polycarbazole (PCz) was synthesized by oxidative polymerization. The mechanically composited nanoparticles-ZnTiO3/PCz nanocomposite was synthesized using the ball milling technique. The synthesized composites were analyzed using various techniques and the ZnTiO3/PCz composites showed superior photocatalytic activity due to the active trapping of photogenerated electrons by polycarbazole, which reduced recombination and increased the degrading effect of the catalyst.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Kumaresan Annamalai, Arun Annamalai, Ramya Ravichandran, Anandhavalli Jeevarathinam, Padmanaban Annamalai, Hector Valdes, Sundaravadivel Elumalai
Summary: Nitrogen-doped carbon dots (N-CDs) with superior photostability and interesting physicochemical and photochemical properties were successfully synthesized. The N-CDs exhibited strong cyan emission and can be used as fluorescent materials for detecting nitro-explosives and toxic metal cations. Additionally, the N-CDs demonstrated excellent detection capabilities for Fe3+ and Hg2+ ions. These findings suggest that N-CDs have great potential for applications in biological systems and information security.
NEW JOURNAL OF CHEMISTRY
(2023)
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)