Article
Chemistry, Multidisciplinary
Minghui Zhu, Qinglong Zhang, Weiwei Zi
Summary: The study presents a dual-metal catalyzed diastereodivergent coupling method for the synthesis of beta-amino alcohols with multiple stereoisomers, enabling the concise preparation of natural products such as mycestericins F and G.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Editorial Material
Chemistry, Physical
Mi Peng, Dequan Xiao, Ding Ma
Summary: The latest study in Nature Catalysis shows that thermochemical aerobic oxidations of organic small molecules can be analyzed as two coupled electrochemical half-reactions, providing new insights into the role of O-2 and offering a quantitative and predictive understanding of thermochemical catalysis from an electrochemical perspective.
Article
Chemistry, Organic
Xinhang Zhang, Hanyang Sun, Changhong Han, He Wang, Junpeng Zhang, Di Zhang, Bin Lin, Huiming Hua, Maosheng Cheng, Yongxiang Liu
Summary: The asymmetric total synthesis of neobraclactone C was achieved for the first time using a convergent synthetic strategy, with the longest linear sequence of 22 steps from known materials. Key steps of the synthesis include a steric hindrance/hydrogen bond dual-controlled Heck arylation reaction for the construction of hemiketal and cis-alkenyl in one step, as well as a CeCl3-catalyzed tricycle formation.
Article
Chemistry, Multidisciplinary
Jason S. Bates, Sourav Biswas, Sung-Eun Suh, Mathew R. Johnson, Biswajit Mondal, Thatcher W. Root, Shannon S. Stahl
Summary: This study investigates the mechanistic relationship between the O-2 reduction mechanism under electrochemical and chemical conditions using M-N-C catalysts. The findings suggest that the M-N-C catalyst mediates a direct inner-sphere reaction (ISR) between O-2 and the organic molecule, instead of coupling two independent half-reactions (IHR).
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Estefania Tiburcio, Rossella Greco, Marta Mon, Jordi Ballesteros-Soberanas, Jesus Ferrando-Soria, Miguel Lopez-Haro, Juan Carlos Hernandez-Garrido, Judit Oliver-Meseguer, Carlo Marini, Mercedes Boronat, Donatella Armentano, Antonio Leyva-Perez, Emilio Pardo
Summary: Palladium single atoms can be spontaneously formed in neat benzyl alcohols and used for organic oxidation reactions without additives or solvents. By stabilizing Pd SACs within a metal-organic framework, a solid catalyst was successfully prepared and characterized.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Qi Zhao, Lirong Zheng, Yixuan Gao, Jingjing Li, Juanjuan Wei, Min Zhang, Jianghui Sun, Jin Ouyang, Na Na
Summary: An aptamer-functionalized Pd@MoO3-x nano-hydrangea (A-Pd@MoO3-x NH) with dual active centers has been developed to overcome the adverse effects of the tumor microenvironment (TME) and achieve high-efficiency cancer therapy. This nanozyme can address tumor hypoxia and high endogenous glutathione (GSH) through cascade enzymatic reactions, catalyzing the degradation of GSH and mitigating the accumulation of cytotoxic superoxide radicals in TME.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Caitlin Kozack, Stephen J. Tereniak, Jonathan N. Jaworski, Bao Li, David L. Bruns, Spring M. M. Knapp, Clark R. Landis, Shannon S. Stahl
Summary: This study focuses on the impact of benzoquinone on the catalytic activity in palladium(II)-catalyzed allylic acetoxylation. The results indicate that benzoquinone enhances the performance of the catalyst, showing a synergistic effect with Co(salophen) in improving reaction performance. The mechanistic studies suggest that both benzoquinone and oxygen play significant roles in oxidizing Pd(0) to Pd(II), leading to better reaction outcomes.
Article
Chemistry, Multidisciplinary
Sanjit Mondal, Soumya Ranjan Das, Lipipuspa Sahoo, Sudipta Dutta, Ujjal K. Gautam
Summary: This article presents a unique property of carbon quantum dots (CQDs) that they can capture large amounts of molecular oxygen from the air and the quantity can be controlled by light irradiation. Research shows that the adsorption of oxygen by CQDs is tunable, and the oxygen enrichment enhances the photocatalytic efficiency of CQDs towards oxidation of benzylamines in the air compared to existing photocatalysts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Tiago A. G. Silva, Erico Teixeira-Neto, Lais R. Borges, Tomaz Neves-Garcia, Adriano H. H. Braga, Liane M. M. Rossi
Summary: The activity of bimetallic AuPd nanoparticles for alcohol oxidation reaction can be optimized by adjusting the Au/Pd molar ratio. Alloy AuPd nanoparticles of different compositions were synthesized through a sol-immobilization method. Calcination caused size increase and segregation of Pd to the surface, forming a core-shell structure. The catalytic activity increased after calcination, but decreased upon reduction, indicating the importance of PdO in the shell.
Article
Chemistry, Multidisciplinary
Dmitry B. Eremin, Alexey S. Galushko, Daniil A. Boiko, Evgeniy O. Pentsak, Igor Chistyakov, Valentine P. Ananikov
Summary: Homogeneous catalysis is well-defined, while heterogeneous nanocatalysis is often poorly defined. Supported catalysts are difficult to characterize due to their heterogeneity and large size at the nanoscale. By studying individual particles of the supported catalyst, important aspects of activity for widespread and commercially important Pd/C catalysts have been revealed.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Alexios G. Stamoulis, Peng Geng, Michael A. Schmidt, Martin D. Eastgate, Alina Borovika, Kenneth J. Fraunhoffer, Shannon S. Stahl
Summary: The study developed a method for the diacyloxylation of cyclohexadiene by pairing catalytic BQ with tert-butyl hydroperoxide and catalytic quantities of bromide, enabling a switch in selectivity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Ridha Zerdoumi, Oksana Matselko, Leonard Roessner, Bidushi Sarkar, Yuri Grin, Marc Armbruester
Summary: Efficient development of catalytic materials requires understanding of the key parameters defining the catalytic properties. In this study, the effects of electronic and geometric factors were evaluated by substituting different elements in isostructural intermetallic compounds. The results show that the combined effects play a crucial role in enhancing the activity of the methanol oxidation reaction.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Organic
Lamprini-Panagiota Apostolina, Artemis Bosveli, Antonia Profyllidou, Tamsyn Montagnon, Vasileios Tsopanakis, Maria Kaloumenou, Dimitris Kalaitzakis, Georgios Vassilikogiannakis
Summary: High value oxygenated polycycles can be rapidly and efficiently accessed from simple precursors using a new and mild method for butenolide synthesis mediated by thiols. The combination of initial photooxygenation and butenolide synthesis with subsequent photoredox reactions allows for rare dual-photocatalyst cascades, leading to fused butyrolactones and substituted cyclopentanones.
Article
Chemistry, Multidisciplinary
Songjie Yu, Yinan Ai, Lingfei Hu, Gang Lu, Chunying Duan, Yue Ma
Summary: A palladium-catalyzed chemoselective coupling of readily available bicyclo[1.1.1]pentanyl alcohols (BCP-OH) with various halides has been developed, providing expedient access to a wide range of cyclobutanone and beta,gamma-enone skeletons through single or double C-C activation. The reaction exhibits broad substrate scope with both BCP-OH and halides, including natural product derivatives. Moreover, the dependence of reaction chemodivergence on base additive has been investigated, which is expected to enhance the reaction modes and synthetic potential of BCP-OH for preparing more complex molecules.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Sebastiano Campisi, Marta Stucchi, Nikolaos Dimitratos, Alberto Villa
Summary: This article celebrates Laura Prati's long and successful scientific career, highlighting her major accomplishments in inorganic chemistry since she began her work as a researcher. She made significant contributions in the field of catalyst synthesis, particularly in the development of innovative strategies for preparing catalysts and the colloidal synthesis of metal nanoparticles, mainly gold. Her investigations in colloids for catalysis had a profound impact on catalyst synthesis and optimization. Throughout her career, she also focused on liquid-phase oxidation reactions, biomass valorization processes, and hydrogenation and hydrogenolysis reactions. Her discoveries have greatly influenced researchers in the fields of heterogeneous catalysis and material design.
Article
Chemistry, Applied
Jodie F. Greene, Yuliya Preger, Shannon S. Stahl, Thatcher W. Root
ORGANIC PROCESS RESEARCH & DEVELOPMENT
(2015)
Article
Chemistry, Physical
Heather M. Barkholtz, Yuliya Preger, Sergei Ivanov, Jill Langendorf, Loraine Torres-Castro, Joshua Lamb, Babu Chalamala, Summer R. Ferreira
JOURNAL OF POWER SOURCES
(2019)
Article
Chemistry, Physical
James B. Gerken, Colin W. Anson, Yuliya Preger, Peter G. Symons, J. David Genders, Yang Qiu, Wenzhen Li, Thatcher W. Root, Shannon S. Stahl
ADVANCED ENERGY MATERIALS
(2020)
Article
Chemistry, Physical
Yuliya Preger, Mathew R. Johnson, Sourav Biswas, Colin W. Anson, Thatcher W. Root, Shannon S. Stahl
ACS ENERGY LETTERS
(2020)
Article
Electrochemistry
Yuliya Preger, Heather M. Barkholtz, Armando Fresquez, Daniel L. Campbell, Benjamin W. Juba, Jessica Roman-Kustas, Summer R. Ferreira, Babu Chalamala
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Review
Chemistry, Analytical
Yang D. Su, Yuliya Preger, Hannah Burroughs, Chenhu Sun, Paul R. Ohodnicki
Summary: The use of fiber optic sensors in battery monitoring is increasing due to the demand for enhanced battery management systems with accurate state estimations. This review explores the advancements in practical implementation of internal and external parameter measurements in batteries, as well as the challenges and future prospects of integrating fiber optics into high-value battery applications.
Article
Electrochemistry
Joshua Lamb, Loraine Torres-Castro, John C. Hewson, Randy C. Shurtz, Yuliya Preger
Summary: This study uses accelerating rate calorimetry to evaluate the impact of cell chemistry, state of charge, cell capacity, and ultimately cell energy density on the thermal runaway process of Li-ion batteries. The research found a strong linear correlation between the total enthalpy of the thermal runaway process and the stored energy of the cell.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Electrochemistry
Yuliya Preger, Loraine Torres-Castro, Taina Rauhala, Judith Jeevarajan
Summary: Concerns about the safety of aged lithium-ion batteries have led to a lack of research on their response to abusive conditions. This article examines existing literature on the thermal, electrical, and mechanical abuse response of aged cells and modules, identifying critical differences in behavior compared to fresh cells. The study also highlights gaps in knowledge, such as electric and mechanical testing, and module-level experiments, and emphasizes the importance of understanding these differences for designing effective energy storage failure mitigation systems.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Electrochemistry
Suryanarayana Kolluri, Prateek Mittal, Akshay Subramaniam, Yuliya Preger, Valerio De Angelis, Venkatasailanathan Ramadesigan, Venkat R. Subramanian
Summary: Advanced Battery Management Systems (BMS) are crucial for monitoring and controlling the performance of lithium-ion batteries. This study demonstrates the computational efficiency and accuracy of a Tanks-in-Series model for parameter estimation and sensitivity analysis.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Energy & Fuels
James Obert, Rodrigo D. Trevizan, Loraine Torres-Castro, Yuliya Preger
Summary: The primary goal of BMS is to maintain a reliable and safe battery power source while maximizing the calendar life and performance of the cells. To prevent cell damage, efficient and accurate cell charging cycle characteristics algorithms must be employed.
IEEE OPEN ACCESS JOURNAL OF POWER AND ENERGY
(2021)
Article
Electrochemistry
Reed M. Wittman, Mike L. Perry, Timothy N. Lambert, Babu R. Chalamala, Yuliya Preger
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Electrochemistry
Randy C. Shurtz, Yuliya Preger, Loraine Torres-Castro, Joshua Lamb, John C. Hewson, Summer Ferreira
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2019)
Article
Chemistry, Physical
Yuliya Preger, James B. Gerken, Sourav Biswas, Colin W. Anson, Mathew R. Johnson, Thatcher W. Root, Shannon S. Stahl
Article
Chemistry, Multidisciplinary
Yuliya Preger, Thatcher W. Root, Shannon S. Stahl