中文
相关论文

相关论文: A Multi-Technique Study of C2H4 Adsorption on a Mo…

200 篇论文

Metal-support interactions are frequently invoked to explain the enhanced catalytic activity of metal nanoparticles dispersed over reducible metal-oxide supports, yet the atomic scale mechanisms are rarely known. Here, we use scanning…

Computational catalysis is playing an increasingly significant role in the design of catalysts across a wide range of applications. A common task for many computational methods is the need to accurately compute the adsorption energy for an…

Single-atom catalysts have attracted significant attention due to their exceptional atomic utilization and high efficiency in a range of catalytic reactions. However, these systems often face thermodynamic instability, leading to…

材料科学 · 物理学 2025-01-24 Lina Wang , Zhenhai Wen , Guangfu Luo

For ethylene carbonate on the (100) surface of lithium, we calculate the adsorption energy in two binding motifs as well as the barrier height for a ring-opening decomposition reaction. We validate a scheme for producing results in the…

We present large scale observations of C18O(1-0) towards four massive star forming regions for MON R2, S156, DR17/L906 and M17/M18. The transitions of H2CO(110-111), C18O(1-0) and 6 cm continuum were compared towards the four regions.…

太阳与恒星天体物理 · 物理学 2015-06-18 Xin. Di. Tang , Jarken Esimbek , Jian Jun Zhou , Gang. Wu , Daniel Okoh

By applying density functional theory (DFT) and ab-initio molecular dynamics (AIMD) simulations, we predict the ultrahigh hydrogen storage capacity of K and Ca decorated single-layer biphenylene sheet (BPS). We have kept various alkali and…

材料科学 · 物理学 2022-02-25 Vikram Mahamiya , Alok Shukla , Brahmananda Chakraborty

We present a study of the adsorption and diffusion of CH4, CO2 and H2 molecules in clathrate hydrates using ab initio van der Waals density functional formalism [Dion et al. Phys. Rev. Lett. 92, 246401 (2004)]. We find that the adsorption…

材料科学 · 物理学 2015-05-19 Guillermo Román-Pérez , Mohammed Moiaed , Jose M. Soler , Felix Yndurain

The "CO adsorption puzzle", a persistent failure of utilizing generalized gradient approximations (GGA) in density functional theory to replicate CO's experimental preference for top-site adsorption on transition-metal surfaces, remains a…

材料科学 · 物理学 2025-07-30 Xinyuan Liang , Renxi Liu , Mohan Chen

Clay minerals are ubiquitous in nature, and the manner in which they interact with their surroundings has important industrial and environmental implications. Consequently, a molecular-level understanding of the adsorption of molecules on…

The d-band center descriptor based on the adsorption strength of adsorbate has been widely used in understanding and predicting the catalytic activity in various metal catalysts. However, its applicability is unsure for the…

材料科学 · 物理学 2021-07-07 Wen Qiao , Shiming Yan , Deyou Jin , Xiaoyong Xu , Wenbo Mi , Dunhui Wang

Atomic oxygen adsorption on the Mo(112) surface has been investigated by means of first-principles total energy calculations. Among the variety of possible adsorption sites it was found that the bridge sites between two Mo atoms of the…

材料科学 · 物理学 2007-05-23 Adam Kiejna , R. M. Nieminen

Transforming CO$_2$ into methanol represents a crucial step towards closing the carbon cycle, with thermoreduction technology nearing industrial application. However, obtaining high methanol yields and ensuring the stability of…

化学物理 · 物理学 2025-07-08 Prajwal Pisal , Ondrej Krejci , Patrick Rinke

Membrane-electrode-assembly (MEA) cells with copper (Cu) cathodes show strong potential for electrochemical CO2 reduction to ethylene (C2H4), but achieving high C2H4 selectivity remains a challenge due to competing hydrogen evolution. This…

化学物理 · 物理学 2025-09-03 Tugrul Y. Ertugrul , Woong Choi , Adam Z. Weber , Alexis T. Bell

We investigate the atomic hydrogen adsorption on Mg(0001) by using density-functional theory within the generalized gradient approximation and a supercell approach. The coverage dependence of the adsorption structures and energetics is…

材料科学 · 物理学 2009-04-29 Yanfang Li , Ping Zhang , Bo Sun , Yu Yang , Yinghui Wei

Dynamics of adsorption and desorption of (4S)-N on amorphous solid water are analyzed using molecular dynamics simulations. The underlying potential energy surface was provided by machine-learned interatomic potentials. Binding energies…

星系天体物理 · 物理学 2020-09-22 Germán Molpeceres , Viktor Zaverkin , Johannes Kästner

The electrocatalytic CO2 reduction reaction (CO2RR) is a complex multi-proton-electron transfer process that generates a vast network of reaction intermediates. Accurate prediction of free energy changes (G) of these intermediates and…

化学物理 · 物理学 2025-04-23 Xuxin Kang , Wenjing Zhou , Ziyuan Li , Zhaoqin Chu , Hanqin Yin , Shan Gao , Aijun Du , Xiangmei Duan

We study Bromine and Chlorine chemisorption on a Ag(100) surface, using a lattice-gas model and the quantum-mechanical Density Functional Theory (DFT) method. In this model the Br and Cl ions adsorb at the fourfold hollow sites of the…

化学物理 · 物理学 2011-04-28 Tjipto Juwono , Ibrahim Abou Hamad , Per Arne Rikvold , Sanwu Wang

We have studied the trends in CO adsorption on close-packed metal surfaces: Co, Ni, Cu from the 3d row, Ru, Rh, Pd, Ag from the 4d row and Ir, Pt, Au from the 5d row using density functional theory. In particular, we were concerned with the…

材料科学 · 物理学 2009-11-10 M. Gajdos , A. Eichler , J. Hafner

The field of single atom catalysis (SAC) has expanded greatly in recent years. While there has been much success developing new synthesis methods, a fundamental disconnect exists between most experiments and the theoretical computations…

材料科学 · 物理学 2022-09-12 Florian Kraushofer , Gareth S. Parkinson

We report on results of a theoretical study of the adsorption process of a single carbon oxide molecule on a Platinum (111) surface. A four-component relativistic density functional method was applied to account for a proper description of…

原子与分子团簇 · 物理学 2009-11-07 D. Geschke , T. Bastug , T. Jacob , S. Fritzsche , W. -D. Sepp , B. Fricke