Simple descriptor derived from symbolic regression accelerating the discovery of new perovskite catalysts.

Nat Commun

College of Energy, Soochow Institute for Energy and Materials InnovationS (SIEMIS), and Jiangsu Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, 215006, Suzhou, China.

Published: July 2020


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Symbolic regression (SR) is an approach of interpretable machine learning for building mathematical formulas that best fit certain datasets. In this work, SR is used to guide the design of new oxide perovskite catalysts with improved oxygen evolution reaction (OER) activities. A simple descriptor, μ/t, where μ and t are the octahedral and tolerance factors, respectively, is identified, which accelerates the discovery of a series of new oxide perovskite catalysts with improved OER activity. We successfully synthesise five new oxide perovskites and characterise their OER activities. Remarkably, four of them, CsLaMnCoO, CsLaNiO, SrNiCoO, and SrBaNiO, are among the oxide perovskite catalysts with the highest intrinsic activities. Our results demonstrate the potential of SR for accelerating the data-driven design and discovery of new materials with improved properties.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7360597PMC
http://dx.doi.org/10.1038/s41467-020-17263-9DOI Listing

Publication Analysis

Top Keywords

perovskite catalysts
16
oxide perovskite
12
simple descriptor
8
symbolic regression
8
catalysts improved
8
oer activities
8
descriptor derived
4
derived symbolic
4
regression accelerating
4
accelerating discovery
4

Similar Publications

Bismuth ferrite (BiFeO), a perovskite oxide with both ferroelectric and antiferromagnetic properties, has emerged as a promising material for environmental cleanup due to its piezo-photocatalytic activity. The material's ability to degrade organic pollutants, such as azo dyes, under both light irradiation and mechanical stress (ultrasonic waves) offers a dual-action mechanism for efficient wastewater treatment. In this work, we explore the synthesis of BiFeO nanoparticles a simple sol-gel method, followed by characterization of their structural, magnetic, and photocatalytic properties.

View Article and Find Full Text PDF

The crossover of methanol from the anode to the cathode presents a significant challenge, adversely affecting the efficacy of direct methanol fuel cells (DMFCs) by poisoning the cathode catalyst. Here, LaBO (B = Mn, Fe, Co, and Ni) perovskite oxides synthesized by the sol-gel method, followed by calcination, are shown to represent a compelling solution to this challenge by effectively reducing the methanol crossover effect and concurrently improving the sluggish cathodic oxygen reduction reaction (ORR). X-ray diffraction, FTIR, and XPS analyses reveal the establishment of phase-pure LaMnO, LaFeO, LaCoO, and LaNiO, perovskite oxides.

View Article and Find Full Text PDF

Perovskites have significant potential to improve efficiency, reduce the costs of conventional oxidation catalysts, and contribute to cleaner and more sustainable energy solutions. However, numerous structural factors influencing their catalytic performance are still a subject to debate. In this study, simple perovskite nanoparticles in the form of LaCoO (LC) and LaMnO (LM), as well as LaCo Mn O (LCM)-mixed B-site perovskites with different B-site cations, were synthesized and their performances in CO oxidation and NO oxidation reactions were examined.

View Article and Find Full Text PDF

In this report, we demonstrate the first application of lead-free double perovskite microcrystals (CsAgBiBr MCs) in sustainable C-C coupling reactions. The CsAgBiBr MCs catalyst exhibits ultrahigh activity and selectivity in the α-alkylation of aldehyde and 2-bromoacetophenone, achieving a reaction rate of 2687.5 mmolgh, a turnover number (TON) value of 22854.

View Article and Find Full Text PDF

The inherent trade-off between activity and stability in platinum single-atom catalysts (SACs) poses a significant challenge for catalytic oxidation reactions. High-coordination Pt sites have good stability, but their overoxidation often passivates activity. In contrast, metastable low-coordination Pt structures typically display high activity but are prone to oxidation and aggregation under harsh conditions.

View Article and Find Full Text PDF