Optimization of catalyst composition and performance for PEM fuel cells: A data-driven approach
Bibliographic record
Abstract
Transportation’s rising negative environmental impacts and energy demands highlight the urgent need for clean alternative power sources such as proton exchange membrane (PEM) fuel cells. However, the high cost of platinum catalysts hinders its commercialization, making the development of low-platinum, high-performance catalysts essential for achieving net-zero targets. This study employs a data-driven machine learning approach to optimize the oxygen reduction reaction (ORR) catalyst composition and predict its long-term performance using extreme gradient boosting (XGB), artificial neural networks (ANN), and genetic algorithm (GA). Linear sweep voltammetry (LSV) data is collected for three distinct catalyst compositions and divided into separate datasets. Data is preprocessed and model hyperparameters are fine-tuned to enhance model accuracy. XGB models trained on these datasets accurately predicted LSV polarization plots for unseen data, as evidenced by R 2 values > 0.99. To further optimize ORR catalyst design, an ANN model trained on data from three different catalyst compositions is integrated with a genetic algorithm. This predictive framework effectively identified optimal catalyst composition by maximizing the mass activity of the catalyst. Experimental validation of this optimized composition yielded strong agreement with predicted LSV current values, confirming the reliability of the ANN-GA approach. This research underscores the potential of machine learning-based predictive frameworks to accelerate the development of advanced ORR catalysts for PEM fuel cells. • Developed data-driven models for predicting catalyst composition and performance. • XGB model predicted linear sweep voltammetry current with an accuracy of R 2 > 0.990. • ANN with a genetic algorithm identified the optimal ORR catalyst composition. • Optimal composition is experimentally validated with high accuracy (R 2 = 0.997). • Data-driven models present effective solutions for advancing catalyst development.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".