Article
Polymer Science
Ruiqing Shen, Tian-Hao Yan, Rong Ma, Elizabeth Joseph, Yufeng Quan, Hong-Cai Zhou, Qingsheng Wang
Summary: Metal-organic frameworks (MOFs) are emerging as novel flame retardants for polymers, improving their thermal stability and flame retardancy. The lack of specific studies on the thermal decomposition kinetics of MOF-based polymer composites is a gap. Combining UiO-66 and SiO2 to form a composite can reduce the burning intensity and mass loss rate of PMMA.
Article
Chemistry, Physical
Jung Su Lee, Hashikaa Rajan, Maria Christy, Sung Chul Yi
Summary: The Co-decorated nitrogen and sulfur co-doped carbon nanostructures (Co-NSC) exhibit high catalytic activity for oxygen reduction reactions, aiming to replace expensive commercial Pt catalysts. The sulfur co-doping dramatically enhances intrinsic catalytic activity, with variation in sulfurization degree influencing overall catalytic performance. Co-NSC 200 with high sulfur doping shows improved onset potential and current density, making it a promising PGM-free catalyst option.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Chemistry, Applied
Soheila Sanati, Ali Morsali, Hermenegildo Garcia
Summary: Metal-organic frameworks (MOFs) are ideal candidates for electrocatalysts due to their unique features such as high porosity, tunable structure, size, and pore shape, high surface area, and redox properties. This review elucidates the role of MOF-based materials as efficient electrocatalysts in energy and sensing-related oxidation and reduction reactions, and discusses the structure-property relationship for each electrocatalytic reaction.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Jacklyn N. Hall, A. Jeremy Kropf, Massimiliano Delferro, Praveen Bollini
Summary: Metal-organic framework materials (MOFs) provide an opportunity to study the catalytic properties of well-defined and uniform polymetal oxo clusters. This study examines the two-electron oxidation of CO over divalent metal sites in MIL-100(M = Fe, Cr) materials using kinetic and Xray absorption spectroscopy (XAS) analysis. The results highlight the importance of uniformity in understanding the mechanistic inferences and kinetic relevance of redox steps in catalytic reactions.
Article
Chemistry, Physical
Jacklyn N. Hall, A. Jeremy Kropf, Massimiliano Delferro, Praveen Bollini
Summary: Metal-organic framework materials offer a unique opportunity to study the catalytic properties of highly uniform polymetal oxo clusters. In this study, the oxidation of CO over divalent metal sites in MIL-100 materials was analyzed using kinetic and X-ray absorption spectroscopy techniques. The results provided insights into the mechanistic inferences and the nature of the active oxygen intermediate. The study also highlighted the importance of metal identity in controlling the kinetic relevance of oxidation and reduction reactions in catalytic redox sequences.
Article
Environmental Sciences
Yi Ren, Jing Zhang, Chenghan Ji, Shu Wang, Lu Lv, Weiming Zhang
Summary: In this study, a new catalyst was developed for Fenton-like catalysis with high activity and stability. The catalyst was fabricated through pyrolysis under nitrogen atmosphere using MIL-53(Fe) as the precursor. Under optimized conditions, the new Fenton-like system showed low iron leaching and achieved high removal rates of bisphenol S (BPS). The main active species for BPS degradation were identified as hydroxyl radicals. This catalyst also demonstrated good potential for practical application in real wastewater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Xuefei Xu, Hsiao-Chien Chen, Linfeng Li, Muhammad Humayun, Xia Zhang, Huachuan Sun, Damien P. Debecker, Wenjun Zhang, Liming Dai, Chundong Wang
Summary: Metal-organic frameworks (MOFs) have potential in electrocatalysis due to their adjustable ligand structures, but their poor stability hinders practical applications. This study introduces an innovative strategy of leveraging metal nodes to enhance both the catalytic activity and stability. The NiRh-MOF||NiRh-MOF configuration in the electrolysis cell achieved a current density of 10 mA cm(-2) at an ultralow voltage of 0.06 V in alkaline seawater, outperforming the Pt/C||Pt/C benchmark cell (0.12 V). Additionally, the incorporation of Rh into the MOF enabled a robust stability of over 60 hours in seawater electrolyte.
Article
Nanoscience & Nanotechnology
Xingyu Luo, Fengjiao Li, Fei Peng, Lizhen Huang, Xiaoling Lang, Meiqin Shi
Summary: The study successfully synthesized carbon-defect tungsten oxides uniformly distributed on a 3D carbon matrix by using phosphotungstic acid confined in HKUST-1 as the precursor. This well-organized structure facilitated the offer of a highly distributed metal source and further transformation into defect-rich catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Green & Sustainable Science & Technology
Imteaz Ahmed, Chul-Ung Kim, Sung Hwa Jhung
Summary: Vanadium nitride was successfully used in the oxidative desulfurization of liquid fuel, with carbon-supported vanadium nitride (VN@C) prepared from pyrolysis of urea-loaded MOF. The VN@C(1100) catalyst prepared at 1100 degrees C showed the highest turnover frequency and low activation energy among reported vanadium-based catalysts. Experimental and theoretical studies confirmed the beneficial role of VN in the adsorption and activation of H2O2 to form •OH radical. The VN@C(1100) catalyst exhibited good stability after five cycles.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Jianjun Tian, Changsheng Cao, Dong-Dong Ma, Shu-Guo Han, Yingchun He, Xin-Tao Wu, Qi-Long Zhu
Summary: This study presents an advanced CO2 electrolysis system constructed by replacing OER with selective methanol oxidation reaction (MOR), achieving the production of value-added products in both the cathode and anode. The integration of CO2RR and MOR can reduce energy consumption and improve the economic benefits of CO2 electrolysis without compromising product selectivity.
Article
Chemistry, Inorganic & Nuclear
Huiyuan Chu, Yameng Li, Chaozhan Wang, Ji-Wei Shen, Yinmao Wei
Summary: A MOF-coated upconversion nanoconstruct (UCTSCF) was designed for the treatment of hypoxic tumors. The MOF coating catalyzed the overexpression of H2O2 in cancer cells to generate cytotoxic reactive oxygen species, while the upconversion nanoparticles provided a light source to alleviate the severe treatment conditions. Additionally, the co-doped mesoporous silicon generated elevated oxygen levels, achieving synergetic photochemodynamic therapy/oxygen-elevated photodynamic therapy.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Patrik Tholen, Lukas Wagner, Jean G. A. Ruthes, Konrad Siemensmeyer, Thi Hai Yen Beglau, Dominik Muth, Yunus Zorlu, Mustafa Okutan, Jan Christoph Goldschmidt, Christoph Janiak, Volker Presser, Ozgur Yavuzcetin, Guendog Yuecesan
Summary: In this study, a layered redox-active, antiferromagnetic metal organic semiconductor crystals with the chemical formula [Cu(H2O)(2)V(& mu;-O)(PPA)(2)] (where PPA is phenylphosphonate) was designed and synthesized. The crystal structure of [Cu(H2O)(2)V(& mu;-O)(PPA)(2)] was found to have metal phosphonate layers separated by phenyl groups. The [Cu(H2O)(2)V(& mu;-O)(PPA)(2)] crystal showed an indirect band gap of 2.19 eV and exhibited photoluminescent properties with PL peaks at 1.8 and 2.2 eV.
Article
Engineering, Chemical
Samuel C. Moore, Michele L. Sarazen
Summary: In this study, the role of structural arrangement in catalytic aqueous pollutant degradation was elucidated by examining MOF-235 and MIL-101 with contrasting morphologies. The results showed that MIL-101 exhibited a larger pseudo-first order rate constant than MOF-235 in the oxidation of methylene blue (MB) dye with excess hydrogen peroxide. However, both MOFs undergo structural alterations upon reuse, resulting in the formation of leached species active for MB degradation. Detailed stability testing and ex situ characterization indicated that water played a prominent role in the breakdown of these frameworks. This work provides important insights into the interpretation and use of common Fe-MOFs for aqueous applications.
Article
Engineering, Chemical
Mohammad Rad, Meghdad Karimi, Morteza Moradi, Vahid Safarifard
Summary: This study investigates the catalytic properties of alcohol oxidation through post-synthesis modification using iodide and bromide as active sites for the first time. The findings show that MIP-202-I is the best catalyst for improving alcohol oxidation, while MIP-202-Br and MIP-202-Cl also exhibit high catalytic efficiency.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Chemistry, Multidisciplinary
Beatriz Villoria-del-Alamo, Sergio Rojas-Buzo, Pilar Garcia-Garcia, Avelino Corma
Summary: Zr-MOF-808-P has been identified as an efficient and versatile catalyst for amide esterification, demonstrating the ability to promote a wide range of reactions with different primary, secondary, and tertiary amides. The catalyst acts as a heterogeneous catalyst, allowing for at least five consecutive cycles of reuse, and has been studied at a molecular level for the amide esterification mechanism.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Review
Chemistry, Applied
Jongsik Kim, Somin Lee, Dong Wook Kwon, Heon Phil Ha
Summary: Rare earth metal vanadates have shown promise for converting NOX to N-2 at high temperatures, but face limitations in catalytic activity due to weak hydrothermal stability, low N-2 selectivity, and limited active sites. This study demonstrates the efficacy of structurally modifying vanadate with additional rare earth metals to generate bimetallic vanadates with improved reactivity and stability.
Review
Chemistry, Applied
Yun Jeong Choe, Jongsik Kim, Ji Young Byun, Sang Hoon Kim
Summary: An electro-Fenton system with magnetite coated stainless steel mesh as cathode was developed and tested for removing methylene blue in wastewater. By coating magnetite particles on the surface of the mesh, catalytic activation of in situ produced H2O2 was enhanced, leading to better degradation efficiency of methylene blue in neutral conditions compared to acidic conditions.
Review
Chemistry, Applied
Dong Wook Kwon, Somin Lee, Jongsik Kim, Kwan-Young Lee, Heon Phil Ha
Summary: The roles of WO3 and SiO2 as supported on TiO2 in Ce-V catalysts were systematically investigated for NH3-SCR and NH3-oxidation at high temperatures. The addition of SiO2 and WO3 to TiO2 resulted in increased surface area, reduced nanoparticle size, and enhanced catalytic defects and oxygen species on Ce-V/TWS surface. Increasing (V4+ + V3+) fraction improved catalytic activity, with WO3 and SiO2 promoting redox properties and making Ce-V/TWS the most suitable catalyst for N-2 production via NH3 direct oxidation at high temperatures.
Article
Engineering, Environmental
Eunike Mahayoni, Sein Min, Jongsik Kim, Keunhong Jeong, Sang Hoon Kim
Summary: In this study, sulfur-doped metal oxides were synthesized and tested for their catalytic activity in the degradation of mustard gas simulant 2CEES. The sulfur-doped mesoporous zinc oxide showed higher catalytic activity, potentially due to the involvement of cyclic sulfonium ion intermediate reaction. Optimizing the sulfur content in the catalyst layer was found to enhance the degradation efficiency of 2CEES.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Jongsik Kim, Ki Bok Nam, Heon Phil Ha
Summary: This study explores the use of HSOA-/SOA(2)(-)/H3-BPO4B- functionalities to adjust the properties of metal oxides for SCR catalysts. It is found that SVC-P performs better in activating Langmuir-Hinshelwood-typed SCR, while SVC-S excels in EleyRideal-typed SCR. Both variants show different resistance to H2O or soot, with SVC-S exhibiting greater tolerance to hydro-thermal aging and SO2.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Seokhyun Lee, Jung-Hyun Lee, Heon Phil Ha, Jongsik Kim
Summary: The study compared metal vanadates and oxide composites as active phases for selective catalytic NOx reduction (SCR) by investigating their performance under different conditions. Results showed that surface species with acidic functionalities and redox sites significantly influenced the efficiency and performance of SCR reactions. Kinetic assessments and temperature-resolved Raman spectroscopy revealed differences in the reaction kinetics and catalyst functionalities, leading to variations in acidic cycling efficiency and resistance to various catalyst poisons.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Jongsik Kim, Dong Ho Kim, Jinseon Park, Keunhong Jeong, Heon Phil Ha
Summary: This study investigates the catalytic significance of SOA2- species in NH3-assisted selective NOx reduction and ammonium sulfate/absorbent poison degradation. The results show that mono-dentate and bi-dentate SOA2- species play crucial roles in directing the reaction pathways and improving the surface redox trait, thus promoting the low-temperature SCR performance and stability under different feed gas streams.
Article
Chemistry, Physical
Minsung Kim, Jinseon Park, Sang Hoon Kim, Jung-Hyun Lee, Keunhong Jeong, Jongsik Kim
Summary: In this study, UiO-66 and its analogues functionalized with -NH2/-SO3H were synthesized to generate ZrO2 poly-crystallites on N/S-doped carbon catalysts via pyrolysis. The catalysts contained different concentrations of Lewis basic N/S dopants, resulting in varying strengths and areas of Bro·nsted acidic -OH and Lewis acidic Zr4+ species. The results showed that adjusting the EBA/SLA ratio can promote the production of ·OH via catalytic H2O2 homolysis.
Article
Engineering, Environmental
Yun Jeong Choe, Sang Hoon Kim, Keunhong Jeong, Jongsik Kim
Summary: In this study, iron oxide was used as a host for supporting mono-dentate H3-XPO4X-guests with varying compositions. The catalysts were able to mineralize bisphenol A (BPA) through different reaction pathways, and exhibited better performance in treating real wastewaters.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Dong Ho Kim, Sang-Ho Oh, Heon Phil Ha, Young-Chang Joo, Jongsik Kim
Summary: CuO-CeO2 interfaces generate CO2 as a feedstock for chemicals through exothermic oxidation/ water-gas shift (WGS), but the understanding of CO oxidation/WGS with wet, low-temperature gases is limited. This study clarifies the surface dynamics, rate laws, rate-determining steps, and catalytic consequences through control runs and kinetic assessments. The findings highlight the importance of optimizing CuO-CeO2 interfaces to enhance CO transformation performance.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Minsung Kim, Md Al Mamunur Rashid, Yun Jeong Choe, Sang Hoon Kim, Jung-Hyun Lee, Keunhong Jeong, Jongsik Kim
Summary: Compared to conventional OH, Cl is longer-lived and more selective in degrading refractory electron-donating aromatics via radicalization. A Cl-functionalized metal-organic framework was synthesized to enhance the diffusion of bulky aromatics and isolate Cl- anions for efficient Cl(SUP) production. This framework exhibited higher activity, selectivity, stability, and recyclability in degrading ionization-resistant aqueous aromatics.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Engineering, Environmental
Thao Thi Le, Van Chinh Hoang, Wenjun Zhang, Jong Min Kim, Jongsik Kim, Gun-hee Moon, Sang Hoon Kim
Summary: In this study, mesoporous sulfur-modified metal oxides were used as cathodes for electro-Fenton reactions. Sulfur-doped Fe2O3 exhibited the best electrocatalytic performance, attributed to its large specific surface area, high-efficiency oxygen reduction reaction activity, and enhanced electron/charge transfer. Under optimal conditions, it achieved high removal efficiency for high concentration phenol solutions in a wide pH range.
CHEMICAL ENGINEERING JOURNAL ADVANCES
(2022)
Article
Chemistry, Multidisciplinary
Jongsik Kim, Yun Jeong Choe, Sang Hoon Kim, In-Suk Choi, Keunhong Jeong
Summary: This study introduces a novel method to radicalize NO3- functionalities on polymorphic α-/γ-MnO2 surfaces, enabling the transformation of NO3• to (OH)-O• and demonstrating the superior efficiency of α-MnO2-N in decomposing organic pollutants in water. The surface NO3- concentration and bi-dentate binding arrays provided by α-MnO2-N enhance the collision frequency between (OH)-O• and NO3- species, facilitating the exothermic transition of NO3- functionalities to surface NO3• analogues. These findings suggest that supported NO3• species are 5-7 times more efficient in degrading textile wastewater compared to conventional (OH)-O• radicals and supported SO4•- analogues.
Article
Chemistry, Physical
Hyo Jin An, Dong Ho Kim, Heon Phil Ha, Jongsik Kim
Summary: This study demonstrates the importance of rare-earth metals in HSOA-/SOA2-/H3-BPO4B--modified RMVO4 frameworks, with properties and SCR performance varying significantly depending on the choice of RM element. The RM-P catalysts outperformed the RM-S analogues in accelerating SCR at lower temperatures, while the opposite trend was observed at higher temperatures.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Seokhyun Lee, Jung-Hyun Lee, Heon Phil Ha, Jongsik Kim
Summary: In this study, Cu3V2O8 and CuO-VO2/V2O5 were selected as model phases of metal vanadates and oxide composites, isolated by regulating the pH of their synthetic mixture. It was found that these materials exhibited differences in infrared spectroscopic properties.
CHEMISTRY OF MATERIALS
(2022)
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)