Article
Chemistry, Physical
Tilman W. Beutel, Alaina M. Willard, ChoongSze Lee, Maria S. Martinez, Ryan Dugan
Summary: The study developed a semi-quantitative test to measure the density of Bronsted acid sites on the external surface of large pore zeolites using TTBP as a probe molecule and detecting N-H stretching vibration with infrared spectroscopy. The method revealed the interaction of TTBP with the external surface of zeolites, providing insights into the activity and selectivity of zeolite catalysts in applications such as hydrocracking. Unlike pyridine, TTBP does not interact with Lewis acid sites.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Applied
Jolie M. Lucero, James M. Crawford, Colin A. Wolden, Moises A. Carreon
Summary: Porous adsorbents, such as zeolites, offer a cost-effective and environmentally-friendly alternative for separating NH3 from H-2 and N-2, particularly in energy intensive processes like the Haber-Bosch process. Zeolite NaP, with a pore size around 2.9 angstrom, shows great potential for selectively adsorbing NH3 over N-2 and H-2. The use of different aluminum precursors in synthesizing zeolites allows for tunable ammonia uptakes, with factors such as morphology, acidity, and crystallinity influencing the adsorption selectivities.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Multidisciplinary Sciences
Lysander Christakis, Jason S. Rosenberg, Ravin Raj, Sungjae Chi, Alan Morningstar, David A. Huse, Zoe Z. Yan, Waseem S. Bakr
Summary: Synthetic quantum systems with interacting constituents are important for quantum information processing and explaining fundamental phenomena. Ultracold polar molecules offer a promising platform due to their long coherence times and long-range, anisotropic interactions. Using quantum gas microscopy, we study the dynamic correlations of polar molecules in a two-dimensional optical lattice, exploring different interaction scenarios and pushing the frontier of probing and controlling interacting systems of ultracold molecules.
Article
Chemistry, Applied
Mostafa El-Shafie, Shinji Kambara, Yukio Hayakawa
Summary: This study investigated the performance of several noble zeolite (SA-600A)-based catalysts supported with RuCl3 center dot nH(2)O and LiOH center dot H2O materials for H-2 production from NH3 decomposition. The results showed that the catalyst performance was enhanced with an increase in the Ru supported material mixing ratio.
Article
Chemistry, Multidisciplinary
Siwoo Lee, Ji Won Jang, Young Bok Ryu
Summary: Cuprous oxide nanoparticles were synthesized using two different methods in this study. The morphology of the nanoparticles was adjusted using NH3 and NaOH, resulting in different size distributions and average sizes. Surprisingly, the NH3 sample exhibited lower antibacterial activity than the NaOH sample. The study also revealed the influence of NH3 on the surface oxidation of Cu2O nanoparticles.
Article
Chemistry, Applied
Shuangquan Wu, Biao Chen, Qifa Ye
Summary: In this study, chitin/zeolite composite nanofibrous microspheres (CZ) were developed as efficient and specific blood ammonia adsorbent for the treatment of hyperammonemia. The CZ exhibited rapid and good affinity for ammonia in both aqueous solution and hyperammonemia plasma. It also demonstrated good compatibility with cells and blood components, making it a potential candidate for clinical use.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Multidisciplinary
Fabian N. Murrieta-Rico, Vitalii Petranovskii, Oleg Sergiyenko, Maxim Grishin, Sergey Sarvadii, Juan de Dios Sanchez-Lopez, Juan Nieto-Hipolito, Donald H. Galvan, Joel Antunez-Garcia, Rosario Yocupicio-Gaxiola
Summary: This work successfully integrated various elements to develop a measurement system for quantitatively determining the electrical response of the faujasite-modified QCM, which was induced by changes in mass during adsorption and desorption processes. The nanostructured faujasite film grown on the QCM surface had a sensitivity of 17 ng/Hz, making it capable of observing not only adsorption and desorption processes, but also climate changes in the surrounding atmosphere.
Article
Engineering, Multidisciplinary
Fabian N. Murrieta-Rico, Vitalii Petranovskii, Oleg Sergiyenko, Maxim Grishin, Sergey Sarvadii, Juan de Dios Sanchez-Lopez, Juan Nieto-Hipolito, Donald H. Galvan, Joel Antunez-Garcia, Rosario Yocupicio-Gaxiola
Summary: The work developed a measurement system for quantitatively determining the electrical response of the faujasite-modified QCM by measuring mass change during adsorption and desorption. The sensitivity of the system was found to be 17 ng/Hz, sufficient for observing both adsorption and desorption processes as well as climate changes in the surrounding atmosphere.
Article
Materials Science, Ceramics
Guilin Wei, Fen Luo, Yulong Miao, Wenhong Han, Yi Xie, Wenxiao Huang, Zhengfan Xu, Xirui Lu
Summary: This study successfully immobilized different types of simulated zeolite wastes under suitable experimental conditions, with a sintering temperature of 1500 degrees Celsius and a holding time of 1 hour. The main microstructures were identified as sheet silicates through FT-IR results, and SEM-EDS results confirmed the formation of a glass-ceramic matrix to effectively immobilize the considered nuclear wastes.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Biochemistry & Molecular Biology
Tianyi Zhang, Wenjie Xu, Pengfei Kang, Xiaoying Guo, Haisong Li, Yan Wang, Junfeng Wan
Summary: With the rapid development of medical industries, wastewater treatment plants have become dumping grounds for residual antibiotics. This study evaluates the effectiveness of a partial nitrification process in removing sulfamethoxazole and finds that the addition of antibiotics reduces the efficiency of the process.
PROCESS BIOCHEMISTRY
(2022)
Article
Engineering, Environmental
Zhe Hong, Chuanfang Xiong, Xin Wang, Fangtao Huang, Lei Li, Zhirong Zhu
Summary: This study reveals that X zeolite after ion exchange of ammonium can modulate Lewis acid-base pairs and increase Cs+ species, constructing a superior catalyst for toluene side-chain alkylation. The reduction of ammonia pools effect significantly improves methanol utilization efficiency and promotes the formation of active intermediates.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biotechnology & Applied Microbiology
Mohd Azhar Abd Hamid, Hamidi Abdul Aziz, Mohd Suffian Yusoff, Sheikh Abdul Rezan
Summary: A novel single hybrid treatment method combining continuous clinoptilolite-augmented electrocoagulation with a sequencing batch reactor (SBR) process was introduced for highly concentrated ammoniacal nitrogen (NH3-N) and colour removal from landfill leachate. It was found that under optimal operating conditions, the proposed method was effective in removing NH3-N and colour, maintaining stable removal rates.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Environmental
Haochuan Chen, Zhenguo Chen, Songwei Zhou, Yongxing Chen, Xiaojun Wang
Summary: This study achieved stable partial nitritation-denitritation (PN) by using a zeolite biological fixed bed (ZBFB) reactor for the treatment of synthetic wastewater and printed circuit board (PCB) tail wastewater. The continuous desorption of ammonium from the zeolite inhibited free ammonia (FA), leading to stable and efficient nitrite accumulation. The results demonstrated the feasibility of using ZBFB for real wastewater treatment and promoted the development of energy-saving anammox process in industrial wastewater treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Physics, Applied
Sergio Santos, Karim Gadelrab, Tuza Olukan, Josep Font, Victor Barcons, Matteo Chiesa
Summary: Quantifying conservative forces in multifrequency atomic force microscopy involves solving the general equations expressed in terms of interaction energies. Power law expressions are commonly used for electrostatic, ferroelectric, magnetic, or long range forces. This study discusses long range forces modeled using power laws with exponent values ranging from 2-5, and applies multifrequency theory to explore the relevant parameter space. Numerical integration of motion equations shows a narrow range of operational parameters for valid approximations during imaging, with errors as low as 10% for all explored exponents.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Minjuan He, Yunfeng Wang, Wenhao He, Yuan Niu, Zhibin Lu
Summary: The friction in 2D materials decreases with an increasing number of layers, but its physical origin is still debated. This study reproduces the experimental observations of layer-dependent friction in 2D materials using DFT calculations and provides another important insight, which is that the in-plane adjustment of atomic positions is a key factor in layer-dependent friction. It is found that the in-plane adjustment reduces charge redistributions and further decreases the friction between layers, which explains the origin of layer-dependent friction. Additionally, the results also explain the effects of substrate adsorption strength on layer-dependent friction in 2D materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Veselina M. Georgieva, Elliott L. Bruce, Ruxandra G. Chitac, Magdalena M. Lozinska, Anna M. Hall, Claire A. Murray, Ronald Smith, Alessandro Turrina, Paul A. Wright
Summary: The study investigated various forms of merlinoite zeolites and found that the narrow-pore structures formed during dehydration exhibit cooperative adsorption behavior towards CO2, with the pressure and adsorption rate depending on the replacement of different metal ions and the changes in unit cell structure.
CHEMISTRY OF MATERIALS
(2021)
Article
Construction & Building Technology
Laura J. Gardner, Claire L. Corkhill, Sam A. Walling, James E. Vigor, Claire A. Murray, Chiu C. Tang, John L. Provis, Neil C. Hyatt
Summary: The study found that Magnesium potassium phosphate cements (MKPC) can effectively retard the corrosion of reactive uranium metal. Optimized formulations of MKPC with low water content, fly ash (FA) and blast furnace slag (BFS) showed good fluidity, strength and phase assemblage. In-situ time resolved synchrotron powder X-ray diffraction revealed that the inclusion of BFS delayed the formation of Struvite-K, and MKPC systems have the potential application in limiting uranium corrosion rates.
CEMENT AND CONCRETE RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Jethro Beamish-Cook, Kenneth Shankland, Claire A. Murray, Paz Vaqueiro
Summary: Mechanochemical synthesis of MOF-74 from ZnO and H(4)HDTA involves the formation of four short-lived intermediate phases before the final crystallization of highly crystalline MOF-74.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Magdalena M. Lozinska, Sophie Jamieson, Maarten C. Verbraeken, David N. Miller, Bela E. Bode, Claire A. Murray, Stefano Brandani, Paul A. Wright
Summary: The flexibility of the zeolite Rho framework enables tunable molecular sieving for rapid CO2 adsorption at room temperature. Fully copper-exchanged forms exhibit open structures even after dehydration, with low occupancy of window sites allowing for quick CO2 uptake. Cu-Rho shows potential for producing pure methane from CO2/CH4 mixtures at the expense of weaker CO2 interaction compared to Na-Rho. Additionally, Cu,Na-Rho materials with >2 Cu cations per unit cell display enhanced performance in CO2/CH4 breakthrough tests, showing improved CO2/CH4 selectivity and uptake.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Nathalie K. Fernando, Andrew B. Cairns, Claire A. Murray, Amber L. Thompson, Joshua L. Dickerson, Elspeth F. Garman, Nayera Ahmed, Laura E. Ratcliff, Anna Regoutz
Summary: This paper presents systematic studies of X-ray-matter interactions on two industrially important catalysts through XRD and XPS experiments, revealing changes in structure and electronic structure due to X-ray exposure and allowing for comparisons of stability between the catalysts. Radiation dose was estimated using RADDOSE-3D software and applied to experiments, with further insights drawn from DFT. These methods have great potential for application to other small molecular systems of scientific or industrial relevance.
JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Education & Educational Research
Claire Murray, Yvonne Anderson, Charlie H. Simms, Michael K. Seery
Summary: The study found a significant bias towards naming and representing male scientists in the textbooks of the UK and Republic of Ireland, with less representation of female scientists. This gender bias may have implications for students' perceptions of science and career choices.
CHEMISTRY EDUCATION RESEARCH AND PRACTICE
(2022)
Article
Chemistry, Physical
Katherine Tustain, Emma E. McCabe, Angel M. Arevalo-Lopez, Alexandra S. Gibbs, Stephen P. Thompson, Claire A. Murray, Clemens Ritter, Lucy Clark
Summary: This study presents a comprehensive structural and magnetic characterization of the barlowite family of S = 1/2 kagome' magnets, revealing two sources of structural complexity and highlighting the importance of understanding inherent structural disorders for correlating with the magnetic ground states of these quantum frustrated magnets.
CHEMISTRY OF MATERIALS
(2021)
Article
Electrochemistry
Karin Kleiner, Claire A. Murray, Cristina Grosu, Bixian Ying, Martin Winter, Peter Nagel, Stefan Schuppler, Michael Merz
Summary: Studies show that redox reactions in lithium transition metal oxides proceed through the reversible oxidation of nickel forming covalent bonds with oxygen neighbors, rather than pure cationic or anionic processes, which affects the reversible capacity and electronic structure of the cathodes.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Bixian Ying, Jack R. Fitzpatrick, Zhenjie Teng, Tianxiang Chen, Tsz Woon Benedict Lo, Vassilios Siozios, Claire A. Murray, Helen E. A. Brand, Sarah Day, Chiu C. Tang, Robert S. Weatherup, Michael Merz, Peter Nagel, Stefan Schuppler, Martin Winter, Karin Kleiner
Summary: The syntheses of Ni-poor (NCM111) and Ni-rich (NCM811) lithium transition-metal oxides from hydroxide precursors are investigated using in situ synchrotron powder diffraction and near-edge X-ray absorption fine structure spectroscopy. The development of the layered structure of these two cathode materials proceeds via two utterly different reaction mechanisms. The necessity and impact of a preannealing step and a high-temperature holding step are also discussed.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Kerstin Scheurrell, Ines C. B. Martins, Claire Murray, Franziska Emmerling
Summary: Mechanochemistry is an effective method for synthesizing organic compounds. Our study on the catalyst-free Knoevenagel reaction reveals a direct relationship between solvent polarity and reaction kinetics.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Nathalie K. Fernando, Hanna L. B. Bostrom, Claire A. Murray, Robin L. Owen, Amber L. Thompson, Joshua L. Dickerson, Elspeth F. Garman, Andrew B. Cairns, Anna Regoutz
Summary: X-ray characterisation methods play a crucial role in materials research but face challenges of radiation-induced sample change and damage. This study investigates the structural stability of [Rh (COD) Cl] (2) using powder X-ray diffraction synchrotron beamlines at various photon energies. The absorbed X-ray dose and radiation hardness of the catalyst are discussed, emphasizing the importance of considering X-ray parameters before conducting diffraction on radiation-sensitive organometallic materials.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Chloe S. Coates, Claire A. Murray, Hanna L. B. Bostroem, Emily M. Reynolds, Andrew L. Goodwin
Summary: Cadmium cyanide Cd(CN)(2) exhibits negative thermal expansion (NTE) and the NTE effect is found to be related to X-ray exposure, leading to the discovery of 'negative X-ray expansion' (NXE). Irradiation also impacts the nature of low-temperature phase transition, resolving discrepancies in NTE coefficients and establishing the true NTE behavior of Cd(CN)(2). The interaction between irradiation and mechanical response in Cd(CN)(2) demonstrates the potential for utilizing X-ray exposure in designing functional materials.
MATERIALS HORIZONS
(2021)
Article
Chemistry, Physical
Joshua W. Makepeace, Jake M. Brittain, Alisha Sukhwani Manghnani, Claire A. Murray, Thomas J. Wood, William I. F. David
Summary: The study investigates the controlled solid-state synthesis of Li-N-H solid-solution anti-fluorite structures and the impact of different compositions on the thermal stability and ammonia reactivity of the materials, highlighting the potential use of compositional variation to control the properties of the material in gas storage and catalytic applications.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Energy & Fuels
Daniella A. Ferluccio, Blair F. Kennedy, Sonia A. Barczak, Srinivas R. Popuri, Claire Murray, Michael Pollet, Jan-Willem G. Bos
Summary: This study investigates the thermal expansion and atomic displacement parameters of Half-Heusler alloys based on TiNiSn and VFeSb, revealing different thermal expansion coefficients and lattice structures among different alloys. The presence of substantial amounts of Fe interstitials in VFeSb, but not in NbFeSb, affects thermal conductivity and bandgap properties.
JOURNAL OF PHYSICS-ENERGY
(2021)
Article
Chemistry, Physical
Lydia Briggs, Ruth Newby, Xue Han, Christopher G. Morris, Mathew Savage, Cristina Perez Krap, Timothy L. Easun, Mark D. Frogley, Gianfelice Cinque, Claire A. Murray, Chiu C. Tang, Junliang Sun, Sihai Yang, Martin Schroder
Summary: This study reported the adsorption of C2H2, CO2 and SO2 in a new, ultra-stable Cr(iii)-based MOF, and investigated the effects of changing metal center on gas uptake by synthesizing a mixed metal MFM-300(Al0.67Cr0.33). In situ synchrotron techniques were used to reveal distinct binding environments and binding domains for these gases in the frameworks, confirming the materials' capability for gas separation. The incorporation of Al(iii) and Cr(iii) within the same framework allows tuning of the host-guest and guest-guest interactions in these functional porous materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
