Article
Chemistry, Physical
Yan-Xin Wang, Hai-Li Zhang, Ping An, Hai-Shun Wu, Jian-Feng Jia
Summary: The potassium additive can improve the selectivity and activity of methanol steam reforming reaction by stabilizing oxygenates and affecting the interaction energies between transition states, with direct K-O bonding and indirect K-adsorbate interactions as key factors contributing to the promotion effect.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
A. Akca, A. E. Genc, B. Kutlu
Summary: This study investigated the dehydrogenation of borohydride on Cu(100) and Cu(110) surfaces using Density-Functional Theory (DFT) method. The rate-determining step for BH4 dehydrogenation was found to be the fourth step on both surfaces. Additionally, the activation barrier of the first dehydrogenation step was lower on the Cu(100) surface compared to the Cu(110) surface.
COMPUTATIONAL AND THEORETICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Chenglin Huang, Sansan Shuai, Jun Wang, Ling Shi, Shilei Li, Ruibin Nan, Chuanjun Li, Jiang Wang, Zhongming Ren
Summary: The effect of static magnetic field (SMF) on the interfacial energy of solid Al2Cu and eutectic melt was investigated using the dihedral angle and grain boundary groove methods. It was found experimentally that the solid/liquid interfacial energy varied up to three times with SMF. The interfacial energy showed a decreasing trend with increasing SMF in both methods. The decrease was attributed to thermoelectric magnetic convection at different scales and explained by the magnetic dipole theory and structural ordering based on Ewing's model.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Li Shiuan Ng, Carice Chong, Xin Yi Lok, Veronica Pereira, Zhi Zhong Ang, Xuemei Han, Haitao Li, Hiang Kwee Lee
Summary: Liquid-liquid interfacial reaction offers a greener and more efficient chemistry, but current methods suffer from the need for a large amount of solvent/reactant/emulsifier and poor reaction performance. Researchers have now achieved an efficient interfacial reaction by creating a magnetic-responsive microscale liquid-liquid interface and utilizing its dynamic spinning motion to rapidly converge biphasic reactants. This design boosts reaction efficiency and equilibrium constant, providing enormous opportunities for efficient multiphase reactions in various applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Yaqiang Li, Hongyu Zhou, Chunjing Wu, Zheng Yin, Chang Liu, Junyou Liu, Zhongliang Shi
Summary: Diamond/Cu composites with Ti-coating were prepared using a liquid-solid separation technology. The formation of TiC phase improved the interfacial bonding between diamond and copper, resulting in a thermal conductivity of 457.22 W·m(-1)·K-1 for 40 vol.% Ti-coated diamond/Cu composites. The thermal conductivity showed a significant decrease with increasing TiC layer thickness, reaching a critical value of approximately 260 nm, as estimated by the differential effective medium model.
Article
Chemistry, Physical
Dongxiang Wu, Yaguang Zhu, Weitao Shan, Jianyu Wang, Qianqian Liu, Guangwen Zhou
Summary: This study reports the formation of a metastable Cu-O/OH superstructure during the reaction of hydrogen with oxygen-covered Cu(110) and elucidates the reaction pathways leading to its formation. These findings reveal the complex surface dynamics resulting from parallel reaction pathways and suggest the possibility of directing the reaction dynamics by manipulating transient surface structure and composition.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Andreas Christ, Patrick Haertl, Manuel Seitz, Tobias Edelmann, Matthias Bode, Jacek Waluk, Markus Leisegang
Summary: We reveal the anisotropic coupling of two distinct vibrational modes to the Cu(110) surface using the molecular nanoprobe technique. The N-H bending mode exhibits maxima perpendicular to the rows of the substrate, while the N-H stretching mode displays maxima along the rows. The anisotropy inversion between these two modes is observed in porphycene adsorbed on Cu(110).
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Andreas Christ, Patrick Haertl, Manuel Seitz, Tobias Edelmann, Matthias Bode, Jacek Waluk, Markus Leisegang
Summary: We conducted a study on the excitation of individual vibrational modes with charge carriers moving on the Cu(110) surface. By using the molecular nanoprobe technique, we discovered the anisotropic coupling of two different vibrational modes to the substrate through the reversible switching of a molecule, specifically tautomerization of porphycene. Furthermore, we observed an inversion of the anisotropy between the N-H bending and stretching modes in porphycene adsorbed on Cu(110).
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Jianyong He, Qiqi Zhou, Shengda Chen, Mengjie Tian, Chenyang Zhang, Wei Sun
Summary: This study investigated the interfacial microstructures and adsorption mechanisms of benzohydroxamic acid (BHA) on Pb2+-activated cassiterite (1 1 0) surface using Raman spectroscopy, AFM, XPS, HRTEM, and DFT calculations. The results showed that the major surface species was the Pb-BHA complex, and BHA could also chemically adsorb on the surface. Raman spectra and HR-TEM images further supported these findings.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Haitao Yu, Yimin Xuan, Qibin Zhu, Sheng Chang
Summary: This study develops a highly efficient and robust method to photocatalytically reduce CO2 to methanol at low temperature. By using a novel multicomponent heterojunction, the gas-liquid-solid system exhibits excellent light absorption and high charge carriers separation, resulting in significantly improved methanol production.
Article
Chemistry, Multidisciplinary
Xing He, Ding-Shyue Yang
Summary: This study uses ultrafast electron diffraction to directly probe structural dynamics in different nanostructures, revealing the impact of stacking order on energy transport dynamics. The research shows that thermal diffusion is the main transport mechanism in 2D-layered films without cross-plane stacking order, while much faster ballistic energy transport is observed in 3D-ordered crystalline solids. This difference in dynamic behavior is associated with the efficiency of vibrational coupling between vdW-interacted layers, demonstrating a strong structure-property relationship.
Article
Chemistry, Physical
Yanqiu Wang, Zixin Zhong, Tangkang Liu, Guoliang Liu, Xinlin Hong
Summary: Cu/ZrO2 catalysts have shown high activity for CO2 hydrogenation to methanol, with the Cu-ZrO2 interface playing a key role. By controlling the active metal size and using porous supports, an ideal Cu-ZrO2 nanocomposite catalyst can be developed. UiO-66, a rigid metal-organic skeleton material, can confine Cu nanoparticles within its pores to maximize the number of active interfaces. The stability and activity of the catalyst are influenced by active component content and calcination temperature.
ACTA PHYSICO-CHIMICA SINICA
(2021)
Article
Chemistry, Physical
Marie S. Saettele, Andreas Windischbacher, Katharina Greulich, Larissa Egger, Anja Haags, Hans Kirschner, Ruslan Ovsyannikov, Erika Giangrisostomi, Alexander Gottwald, Mathias Richter, Serguei Soubatch, F. Stefan Tautz, Michael G. Ramsey, Peter Puschnig, Georg Koller, Holger F. Bettinger, Thomas Chasse, Heiko Peisert
Summary: Hexacene, an organic semiconductor material, shows superior electronic properties. The study reveals distinct differences in the structure and electronic properties of hexacene monolayers on Ag(110) and Cu(110) substrates.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Axel Belser, Katharina Greulich, Peter Gruninger, Reimer Karstens, Ruslan Ovsyannikov, Erika Giangrisostomi, Peter Nagel, Michael Merz, Stefan Schuppler, Thomas Chasse, Heiko Peisert
Summary: The interface properties of CoPcF16 on Cu(110) and Cu(110)-(2 x 1)O were investigated using XPS, UPS, XAS, and STM techniques. Charge transfer from both substrates to the central Co ion of CoPcF16 was observed, with a partial suppression of the interaction between CoPcF16 molecules and the Cu(110) substrate by oxygen termination. Additionally, bidirectional charge transfer involving the macrocycle of CoPcF16 molecules was concluded.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Xiao Tan, Suitao Qi, Rui Hua, Chunhai Yi, Bolun Yang
Summary: The study investigated the adsorption and dissociation pathways of NO on different crystal surfaces of beta-MnO2, with results indicating that NO prefers to adsorb on the beta-MnO2(110) surface, showing stronger interaction and more charge transfer compared to the (101) surface. The lower energy barrier for NO dissociation on beta-MnO2(110) is attributed to bridge adsorption of NO and increased electron transfer, facilitating N-O bond breaking.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Wei-Hong Jiao, Shi-Zhong Liu, Zhi-Jun Zuo, Rui-Peng Ren, Zhi-Hua Gao, Wei Huang
APPLIED SURFACE SCIENCE
(2016)
Article
Chemistry, Physical
Zhi-Jun Zuo, Na Li, Shi-Zhong Liu, Pei-De Han, Wei Huang
APPLIED SURFACE SCIENCE
(2016)
Article
Chemistry, Physical
Zhi-Jun Zuo, Xiao-Yu Gao, Pei-De Han, Shi-Zhong Liu, Wei Huang
JOURNAL OF PHYSICAL CHEMISTRY C
(2016)
Article
Chemistry, Physical
Shizhong Liu, Michael G. White, Ping Liu
JOURNAL OF PHYSICAL CHEMISTRY C
(2016)
Article
Chemistry, Multidisciplinary
Yong-Chao Zhang, Rui-Peng Ren, Shi-Zhong Liu, Zhi-Jun Zuo, Yong-Kang Lv
Article
Chemistry, Multidisciplinary
Fang Lu, Yu Zhang, Shizhong Liu, Deyu Lu, Dong Su, Mingzhao Liu, Yugang Zhang, Ping Liu, Jia X. Wang, Radoslay R. Adzic, Oleg Gang
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Article
Chemistry, Physical
Pan Xu, Shizhong Liu, Sung-Young Hong, Ping Liu, Michael G. White, Nicholas Camillone
Article
Chemistry, Multidisciplinary
Yi-Ming Liu, Jiang-Tao Liu, Shi-Zhong Liu, Jing Li, Zhi-Hua Gao, Zhi-Jun Zuo, Wei Huang
JOURNAL OF CO2 UTILIZATION
(2017)
Article
Chemistry, Physical
Shizhong Liu, Michael G. White, Ping Liu
Article
Biochemistry & Molecular Biology
Li-Ping Cui, Jiang-Tao Liu, Shi-Zhong Liu, Ming-Fei Wang, Zhi-Hua Gao, Zhi-Jun Zuo, Wei Huang
JOURNAL OF MOLECULAR MODELING
(2018)
Article
Electrochemistry
Shizhong Liu, Ping Liu
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2018)
Article
Chemistry, Physical
Zhijun Zuo, Shizhong Liu, Zichun Wang, Cheng Liu, Wei Huang, Jun Huang, Ping Liu