Article
Chemistry, Multidisciplinary
Xiao-Chen Liu, Tao Wang, Zhi-Ming Zhang, Cong-Hua Yang, Lai-Yang Li, Shimiao Wu, Shunji Xie, Gang Fu, Zhi-You Zhou, Shi-Gang Sun
Summary: This study investigated the mechanistic studies of propene electrooxidation on PdO/C and Pd/C catalysts, revealing different reaction pathways under an electrochemical environment, which sheds light on designing next-generation electrocatalysts for propene electrooxidation.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Jingzhao Ren, Liancheng Wang, Penghui Li, Xiangying Xing, Huixiang Wang, Baoliang Lv
Summary: Linear terminal olefin epoxidation is an important oxidation reaction. In this study, bowl-shaped gamma-Al2O3-supported silver catalysts were synthesized and their catalytic performance in the epoxidation of 1-hexene was investigated. The results showed that the initiator promotes selective oxidation, and the variation in catalytic performance is attributed to the oxidized silver content.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Alexandru B. Georgescu, Peiwen Ren, Aubrey R. Toland, Shengtong Zhang, Kyle D. Miller, Daniel W. Apley, Elsa A. Olivetti, Nicholas Wagner, James M. Rondinelli
Summary: Metal-insulator transition (MIT) compounds can exhibit metallic or insulating behavior depending on physical conditions, with a subset driven by temperature. Research on thermally driven MIT materials is limited by scientists' domain knowledge and focus on a subset of possible features. Building a material database through natural language processing allows for the identification of new features and classification of MIT materials.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Physical
Chu Zhang, Xi Shen, Xiaoyun Li, Qiuyan Liu, Zepeng Liu, Yuli Huang, Yurui Gao, Zhiwei Hu, Jin-Ming Chen, Yuan Yang, Jun Ma, Shu-Chih Haw, Xuefeng Wang, Richeng Yu, Zhaoxiang Wang, Liquan Chen
Summary: This study applies a subtraction strategy to reconstruct the surface of LiCoO2 by quenching it in an aqueous solution of KAl(SO4)(2), forming a Co3O4-like spinel. The presence of this artificial spinel effectively suppresses the degradation of LiCoO2 and the fade of reversible capacity in high-energy-density Li-ion batteries.
CHEMISTRY OF MATERIALS
(2023)
Article
Physics, Applied
Petr Shvets, Ksenia Maksimova, Alexander Goikhman
Summary: Triclinic vanadium dioxide VO2 (T) films were produced using cathodic arc deposition, resulting in triclinic monocrystals with sizes of several tens of micrometers. Raman mapping analysis can determine borders between different crystallites, while X-ray diffraction measurements revealed two orientations in the micrometer-sized monocrystals. Contrary to expectations, polarized micro-Raman spectroscopy showed that all phonons in VO2 (T) have nine generally nonzero tensor components.
JOURNAL OF APPLIED PHYSICS
(2021)
Review
Chemistry, Inorganic & Nuclear
Fritz E. Kuehn
Summary: Catalytic epoxidation reactions are significant in the chemical industries, and high oxidation state transition metal complexes and organometallic compounds have been explored as catalysts. The author's research group has been studying this area for 30 years, revealing that metal oxides or peroxides always play an important role in the reaction mechanisms. Although an ideal system to rival or surpass heterogeneous systems has not been established yet, collaboration with other research groups has provided profound insights into the intricate chemistry involved.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Claudia J. Keijzer, Remco Dalebout, Jan Willem de Rijk, John R. Lockemeyer, Tracy L. Lohr, Peter van den Brink, Petra E. de Jongh
Summary: In this study, cellulose and carbonized glucose were used as templates to synthesize high surface area alumina. It was found that increasing the template size improved the purity of alumina and maintained high surface areas. Prolonging the calcination time substantially increased the phase purity of alumina. The high surface area alumina synthesized in this study showed enhanced selectivity for ethylene oxide in the epoxidation reaction.
Article
Chemistry, Multidisciplinary
Xiao Liu, Zhi Chen, Suxian Xu, Guoquan Liu, Yong Zhu, Xiaoqiang Yu, Licheng Sun, Fei Li
Summary: This study reports a photoelectrochemical method for the oxidation of organic compounds and the production of hydrogen using a bromide mediator on a BiVO4 photoanode and water cathode. This method is efficient and environmentally friendly, and can be used for the production of value-added chemicals using solar energy.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Rongtan Li, Conghui Liu, Yamei Fan, Qiang Fu, Xinhe Bao
Summary: The activity of active oxygen species on supported Ag atoms can be effectively modulated by metal-support interactions using different oxide supports. The strong interaction between Ag and Al2O3 leads to the formation of more Ag-O-2(-) (superoxide) species, responsible for the selective oxidation of ethylene to ethylene oxide. The relatively weak interaction between Ag and SiO2 induces the generation of Ag-O (atomic oxygen) and Ag-O-2(2-) (peroxide) species, which are more active for complete oxidation of CO and ethylene to CO2. This work is of significance for deep understanding of active surface species in atomically dispersed metal catalysts.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Minhui Lee, Emiko Kazuma, Chi Zhang, Michael Trenary, Jun Takeya, Jaehoon Jung, Yousoo Kim
Summary: The dissociation of O-2 molecules chemisorbed on silver surfaces has been studied at the single-molecule level on Ag(110) using a scanning tunneling microscope (STM). The dissociation reaction was predominantly triggered by inelastically tunneled holes from the STM tip, influenced by the significantly distributed density of states below the Fermi level of the substrate. Action spectroscopy with the STM and density functional theory calculations revealed that direct ladder-climbing excitation of high-order overtones of the O-O stretching mode, enhanced by molecule-surface interactions, is the cause of the O-2 dissociation reaction.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Physical
S. Gabra, E. J. Marek, S. Poulston, G. Williams, J. S. Dennis
Summary: This study demonstrates that by controlling the structure of oxygen carriers based on strontium ferrite, the yield of chemical looping epoxidation reaction can be significantly increased. Samples with a specific ratio of SrFeO3 and RP phase mixed exhibit optimal performance, leading to a 4-fold increase in yield.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Changming Liu, Devinda P. Wijewardena, Anna Sviripa, Abinaya Sampath, David W. Flaherty, Christopher Paolucci
Summary: In this study, the surface structure of the catalyst and the molecular structure of the reactive oxygen species during the catalytic production of ethylene oxide are elucidated. The results suggest that reconstructed surface oxides are formed and encase metallic Ag particles during the catalytic reaction.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Xuanchi Zhou, Wei Mao, Yuchen Cui, Hao Zhang, Qi Liu, Kaiqi Nie, Xiaoguang Xu, Yong Jiang, Nuofu Chen, Jikun Chen
Summary: This study demonstrates multiple electronic phase transition properties in the thermodynamically stable NiO, similar to ReNiO3, from both perspectives of band gap regulation and orbital filling regulation. The adjustment in NiO's band gap is achieved through biaxial tensile or compressive interfacial strains. Furthermore, the relaxor ferroelectricity of PMNPT enables an electric field adjustable resistance switch within NiO/PMNPT heterostructure with higher performances than reported oxides/PMNPT heterostructures.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Hao Li, Ang Cao, Jens K. Norskov
Summary: It has been found that moderate O-bonding and weak C-bonding strengths on silver surfaces lead to relatively high ethylene conversion and EO selectivity.
Article
Chemistry, Physical
Suyoon Eom, Su Hwan Jeong, Sang Jun Lee, Young Hwa Jung, Joo-Hyung Kim
Summary: This study proposes an effective strategy to inhibit harmful phase transition and Jahn-Teller distortion in Mn-based layered oxide cathodes for sodium-ion batteries using Al substitution. The Al-substituted electrode exhibits excellent cycling stability and higher Mn4 content compared to the bare electrode, confirming the improved electrochemical performance.
MATERIALS TODAY ENERGY
(2023)
Article
Chemistry, Applied
Klara Wiese, Ali M. Abdel-Mageed, Alexander Klyushin, R. Juergen Behm
Article
Chemistry, Inorganic & Nuclear
Leon Zwiener, Travis Jones, Elisabeth Hannah Wolf, Frank Girgsdies, Milivoj Plodinec, Alexander Yu. Klyushin, Elena Willinger, Frank Rosowski, Robert Schloegl, Elias Frei
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Ali M. Abdel-Mageed, Alexander Klyushin, Azita Rezvani, Axel Knop-Gericke, Robert Schloegl, Juergen Behm
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Chemistry, Physical
Andrey Tarasov, Alexander Yu Klyushin, Matthias Friedrich, Frank Girgsdies, Robert Schloegl, Elias Frei
APPLIED CATALYSIS A-GENERAL
(2020)
Article
Chemistry, Physical
M. A. Panafidin, A. Bukhtiyarov, A. Yu Klyushin, I. P. Prosvirin, I. A. Chetyrin, V. Bukhtiyarov
KINETICS AND CATALYSIS
(2019)
Article
Chemistry, Physical
Walid Hetaba, Alexander Yu Klyushin, Lorenz J. Falling, Dongyoon Shin, Anna K. Mechler, Marc-Georg Willinger, Robert Schloegl
Article
Chemistry, Applied
Yuxiao Ding, Qingqing Gu, Alexander Klyushin, Xing Huang, Sakeb H. Choudhury, Ioannis Spanos, Feihong Song, Rik Mom, Pascal Duengen, Anna K. Mechler, Robert Schloegl, Saskia Heumann
JOURNAL OF ENERGY CHEMISTRY
(2020)
Article
Chemistry, Applied
Monia Runge Nielsen, Asger Barkholt Moss, Anton Simon Bjornlund, Xi Liu, Axel Knop-Gericke, Alexander Yu. Klyushin, Jan-Dierk Grunwaldt, Thomas L. Sheppard, Dmitry E. Doronkin, Anna Zimina, Thomas Eric Lyck Smitshuysen, Christian Danvad Damsgaard, Jakob Birkedal Wagner, Thomas Willum Hansen
JOURNAL OF ENERGY CHEMISTRY
(2020)
Article
Multidisciplinary Sciences
M. A. Panafidin, A. V. Bukhtiyarov, I. P. Prosvirin, I. A. Chetyrin, A. Yu. Klyushin, A. Knop-Gericke, N. S. Smirnova, P. V. Markov, I. S. Mashkovsky, Y. V. Zubavichus, A. Yu. Stakheev, V. I. Bukhtiyarov
Summary: The research focuses on the post-synthesis treatment of Pd-In bimetallic catalysts, revealing the regularities of intermetallic formation and their evolution in different gas phases. The use of synchrotron-based photoelectron spectroscopy and scanning tunnelling microscopy techniques helps derive scientific conclusions.
Article
Chemistry, Physical
Emilia A. Carbonio, Frederic Sulzmann, Alexander Yu. Klyushin, Michael Haevecker, Simone Piccinin, Axel Knop-Gericke, Robert Schloegl, Travis E. Jones
Summary: The development of catalysts for direct epoxidation of propylene to produce propylene oxide using oxygen is challenging. The low selectivity over silver catalysts is attributed to the lack of electrophilic oxygen. The addition of electrophilic-O via SO4 oxyanions and Cl activation of the oxyanion can significantly increase the selectivity to propylene oxide.
Article
Instruments & Instrumentation
Alexander Klyushin, Manoj Ghosalya, Esko Kokkonen, Calley Eads, Rosemary Jones, Naresh Nalajala, Chinnakonda S. Gopinath, Samuli Urpelainen
Summary: The APXPS endstation at the SPECIES beamline at MAX IV Laboratory has been upgraded to enhance its capability to perform photo-assisted experiments under operando conditions in the mbar pressure range using gas and vapour mixtures, while also reducing beam damage to the sample caused by X-ray irradiation. This article presents the endstation upgrades for APXPS and showcases scientific cases of in situ photocatalysis, photoreduction, and photo-assisted atomic layer deposition (photo-ALD).
JOURNAL OF SYNCHROTRON RADIATION
(2023)
Article
Chemistry, Multidisciplinary
Jawaher Mosrati, Tamao Ishida, Hung Mac, Mohammed Al-Yusufi, Tetsuo Honma, Magdalena Parliniska-Wojtan, Yasuhiro Kobayashi, Alexander Klyushin, Toru Murayama, Ali M. Abdel-Mageed
Summary: Optimizing processes and materials for the conversion of CO2 to hydrogen carriers or platform chemicals is crucial for mitigating global warming and sustainable use of renewable resources. This study reports on the hydrogenation of CO2 in water using ZnO-supported CuAu nanoalloys. The results showed that, under suitable conditions, CuAu catalysts can significantly enhance the conversion of CO2 and maintain high selectivity towards methanol.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Camilla F. S. Codeco, Alexander Yu Klyushin, Emilia A. Carbonio, Axel Knop-Gericke, Robert Schloegl, Travis Jones, Tulio C. R. Rocha
Summary: Adsorbed hydroxyl is a key intermediate in many catalytic reactions and electrochemical processes, particularly on noble metal surfaces. In this study, a fully hydroxylated surface phase in equilibrium with water and oxygen in the gas phase under near ambient conditions was prepared from a well-defined oxygen covered Ag(110) surface with O-p(2 x 1) reconstruction. In situ soft X-ray spectroscopy and density functional theory showed distinct modifications in the electronic structure of the adsorbate layer upon hydroxylation.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Yuxiao Ding, Pengfei Zhang, Hailong Xiong, Xiaoyan Sun, Alexander Klyushin, Bingsen Zhang, Zigeng Liu, Jinshui Zhang, Huiyuan Zhu, Zhen-An Qiao, Saskia Heumann, Sheng Dai
Article
Chemistry, Physical
Elisabeth Hannah Wolf, Marie-Mathilde Millet, Friedrich Seitz, Frenio A. Redeker, Wiebke Riedel, Gudrun Scholz, Walid Hetaba, Detre Teschner, Sabine Wrabetz, Frank Girgsdies, Alexander Klyushin, Thomas Risse, Sebastian Riedel, Elias Frei
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)