Article
Energy & Fuels
Pilar Tarifa, Cristina Megias-Sayago, Fernando Cazana, Miguel Gonzalez-Martin, Nieves Latorre, Eva Romeo, Juan Jose Delgado, Antonio Monzon
Summary: The study found that Ce is a better catalyst promoter than Mg, achieving higher CO2 conversion rates and CH4 selectivity over a wider temperature range. The Ni-Mg-Ce/CDC catalyst reached the highest methane yield of 80% in the temperature range of 350-400 degrees C. Ce-promoted catalysts also exhibited high activity at low temperatures.
Article
Energy & Fuels
Filipe Mateus, Paula Teixeira, Joseï M. Lopes, Carlos Henriques, Carmen Bacariza
Summary: Activated carbons derived from cork wastes were used as supports for CO2 methanation catalysts for the first time. The addition of CeO2 improved the catalytic performance of the Ni-based catalysts, showing higher CH4 yields compared to the catalyst without CeO2.
Article
Materials Science, Multidisciplinary
Xufei Ma, Bingkun Li, Kun Shi, Xuejuan Liao, Huimin Wang, Lina Tang, Lizhong Zhang, Yifei Sun, Jianhui Li
Summary: Ni/Zn supported defective carbon catalyst with multi-functional catalytic sites was synthesized via a two-step pyrolysis-H2O2 treatment, showing high catalytic activity and selectivity for Baeyer-Villiger oxidation. The H2O2 treatment led to the formation of active N/O-group on the catalyst surface, facilitating substrate adsorption and reaction efficiency. The synergistic effect between multi-functional sites enhanced oxygen insertion efficiency for lactone formation, providing insight for exploring versatile solid catalysts for oxidative reactions.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Applied
Xiaorui Wang, Rongrong Jin, Wangwei Yan, Haomiao Li, Zhou-Jun Wang
Summary: This study successfully developed an efficient Ni7Fe1/Al2O3 bimetallic catalyst with outstanding low-temperature activity and stability, clarifying the effect of bimetallic synergism in CO2 methanation.
Article
Chemistry, Multidisciplinary
Ekaterina Mamontova, Corine Trabbia, Isabelle Favier, Alejandro Serrano-Maldonado, Jean-Bernard Ledeuil, Lenaic Madec, Montserrat Gomez, Daniel Pla
Summary: In this study, small Ni-based nanoparticles supported on inorganic solid supports were prepared by decomposing organometallic precursors in refluxing ethanol under H-2 atmosphere. The prepared Ni-based nanocomposites showed high efficiency in the hydrogenation of unsaturated fatty acids under solvent-free conditions, with a high selectivity for the hydrogenation of C=C bonds. The influence of the support on the catalytic performance of the nanocomposites was highlighted.
Article
Chemistry, Multidisciplinary
Jiajuan Li, Zizhu Wang, Yirui Ma, Caiyun Xu, Shenghu Zhou
Summary: In this study, mesoporous silica SBA-16-supported NiCo bimetallic nanocatalysts were synthesized and confirmed through various characterization techniques. The synthesized NiCo/SBA-16 showed enhanced catalytic performance for the hydrogenation of nitroaromatics. The improved catalytic performance was attributed to the formation of NiCo bimetallic nanostructures, where the synergistic effect between Ni and Co enhanced their catalytic activities.
Article
Chemistry, Inorganic & Nuclear
Sinemihlali Ntshibongo, Mulisa Maumela, Ndzondelelo Bingwa
Summary: In this study, the synthesis of supported-palladium nanoparticles and their catalytic performance in esterification reaction were investigated. The results showed that Pd/Al2O3 exhibited the highest conversion rate of levulinic acid. Interestingly, PdNPS supported on TiO2 showed an induction period in the initial stage of the reaction, followed by a high conversion rate and selectivity towards isopropyl levulinate.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Fabio Gonsalves Macedo de Medeiros, Taynara Ewerlyn Barbosa Ramalho, Samira Lotfi, Bruna Rego de Vasconcelos
Summary: In this study, the performance of direct flue gas methanation over 20wt%Ni/hydroxyapatite catalyst was validated for the first time in literature. The results showed high catalytic conversions of CO2 and H2 with 100% selectivity for CH4 without prior purification on lab- and semi-pilot scales.
FUEL PROCESSING TECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Pedro Migowski, Pedro Lozano, Jairton Dupont
Summary: 1,3-Dialkyl imidazolium salts are versatile ionic liquids (ILs) that can function as solvents, supports, or modifiers for catalytic processes. They can modify the properties of catalysts and control the access of substrates and expulsion of products. The miscibility, hydrophobicity, ionicity, and basicity of ILs can be adjusted by choosing the appropriate alkyl side chain and anions, allowing fine-tuning of the catalytic system. ILs also offer the possibility of designing greener catalytic tools and various methods for product separation.
Article
Chemistry, Multidisciplinary
Hao Wang, Yi Zhang, Yali Zhang, Yunqing Li, Xiaoning Wang, Huifang Wang, Winston Duo Wu, Xiaoguang Bao, Zhangxiong Wu
Summary: This study proposes an aerosol drying impregnation method for the rapid and scalable synthesis of silica-supported bimetallic nanoparticles with homogeneous alloying. The method allows for control over the composition and size of the nanoparticles and avoids the use of expensive metal salts and complicated experimental procedures. The supported PdNi nanoparticles exhibit high activity and selectivity in the catalytic semihydrogenation of phenylacetylene.
Article
Chemistry, Inorganic & Nuclear
Israel T. Pulido-Diaz, Alejandro Serrano-Maldonado, Carlos Cesar Lopez-Suarez, Pedro A. Mendez-Ocampo, Benjamin Portales-Martinez, Aida Gutierrez-Alejandre, Karla P. Salas-Martin, Itzel Guerrero-Rios
Summary: The study demonstrates that nicotinamide groups grafted on ordered mesoporous silica (OMS) can serve as stabilizers for RhNPs used as catalysts, forming spherical rhodium nanoparticles with a narrow size distribution. On the contrary, amine-functionalized OMS tends to form RhNP aggregates after catalytic reactions, affecting the reaction efficiency. Supported RhNPs also exhibit selective reduction of different groups and show high activity in reductive amination reactions.
DALTON TRANSACTIONS
(2021)
Review
Chemistry, Multidisciplinary
Tianjun Zhang, Andrew G. Walsh, Jihong Yu, Peng Zhang
Summary: This review discusses the development and application of single-atom alloy catalysts, highlighting structural analysis at the atomic scale using microscopy and spectroscopy tools, electronic properties research through X-ray spectroscopy techniques and quantum calculations, and catalytic activity in representative reactions. It also proposes future perspectives for single-atom alloy catalysts from structural, electronic, and reactivity aspects.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Physical
Ziliang Yuan, Guanghui Wang, Xun Li, Yurong He, Pan Wang, Francesco Mauriello, Zehui Zhang
Summary: Ni nanoparticle catalysts supported on Vulcan carbon (VCX) were prepared and used for the acceptorless dehydrogenation of primary amines to secondary amines. The best performance was achieved with Ni(A)/VXC with Ni particle size of 11.9 nm at 150 degrees C. This work provides inspiration for further investigation into acceptorless dehydrogenation using non-noble metal catalysts.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Babatunde J. Akinbile, Leah C. Matsinha, Abayneh A. Ambushe, Banothile C. E. Makhubela
Summary: This study demonstrates the efficient phytoextraction of nickel by a cyanogen-glucoside-rich cassava plant, leading to the formation of a bio-ore containing Ni nanoparticles. The bio-ore is then utilized to prepare a heterogeneous catalyst for hydrogenating carbon dioxide to formate, showcasing a dual-pronged approach to sustainability by transforming waste streams into value.
ACS EARTH AND SPACE CHEMISTRY
(2021)
Article
Chemistry, Physical
Alejandra Romero-Moran, Jose L. Sanchez-Salas, Joel Molina-Reyes
Summary: The study established the influence of the crystalline phase and agglomeration degree of TiO2 nanoparticles on photocatalytic hydroxyl radical formation and bacterial inactivation in TiO2/SiO2 composite coatings. A relationship between hydroxyl radicals' formation and charge carrier transfer mechanism between defect levels in SiO2 and TiO2 embedded nanoparticles was established through a simple spectroscopic method. This correlation complements the lack of mechanisms behind the photocatalytic activity in TiO2/SiO2 composites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)