通过贝叶斯优化推断能量组成关系,可以增强对无机材料的探索
Andrij Vasylenko1, Benjamin M Asher1, Christopher M Collins1
1Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom.
The Journal of chemical physics
|February 11, 2024
概括
这项研究介绍了PhaseBO,一种用于材料发现的新型计算方法. PhaseBO有效地采样组合空间,以加快新材料的发现,而不会牺牲准确性.
科学领域:
- 材料科学 材料科学 材料科学
- 计算化学计算化学
- 数据科学数据科学数据科学
背景情况:
- 计算材料科学通过探索组成空间来加速发现.
- 当前的高通量方法经常在能源评估中以准确性和速度进行交易.
- 有效的采样对于发现新材料至关重要.
研究的目的:
- 为材料发现提出一种替代的计算方法.
- 优化组合空间的采样,以加速材料合成.
- 提高准确有效地发现目标材料的概率.
主要方法:
- 开发了一个名为PhaseBO的学习算法.
- PhaseBO的重点是对构成空间的有效采样.
- 优化材料固体测量,同时确保精确的能量评估.
主要成果:
- PhaseBO加速了新材料的发现.
- 这种方法提高了找到目标材料的概率.
- 保持能源评估的准确性.
结论:
- PhaseBO为计算材料发现提供了一个有效的策略.
- 这种方法在探索材料组成时平衡了速度和准确性.
- PhaseBO指导合成研究向新材料的实现.
相关概念视频
Predicting Reaction Outcomes
8.4K
Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
8.4K
Experimental Determination of Chemical Formula
38.0K
The elemental makeup of a compound defines its chemical identity, and chemical formulas are the most concise way of representing this elemental makeup. When a compound’s formula is unknown, measuring the mass of its constituent elements is often the first step in determining the formula experimentally.
38.0K
Energy Diagrams, Transition States, and Intermediates
16.5K
Free-energy diagrams, or reaction coordinate diagrams, are graphs showing the energy changes that occur during a chemical reaction. The reaction coordinate represented on the horizontal axis shows how far the reaction has progressed structurally. Positions along the x-axis close to the reactants have structures resembling the reactants, while positions close to the products resemble the products. Peaks on the energy diagram represent stable structures with measurable lifetimes, while...
16.5K
Predicting Molecular Geometry
34.3K
VSEPR Theory for Determination of Electron Pair Geometries
34.3K
Potential-Energy Criterion for Equilibrium
544
Potential energy or potential function plays an essential role in determining the stability of a mechanical system. If a system is subjected to both gravitational and elastic forces, the potential function of the system can be expressed as the algebraic sum of gravitational and elastic potential energy. If the system is in equilibrium and is displaced by a small amount, then the work done on the system equals the negative of the change in the system's potential energy from the initial to...
544
Maxwell-Boltzmann Distribution: Problem Solving
1.5K
Individual molecules in a gas move in random directions, but a gas containing numerous molecules has a predictable distribution of molecular speeds, which is known as the Maxwell-Boltzmann distribution, f(v).
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
1.5K


