Determination of critical catalyst preparation factors (cCPF) influencing hydrogen evolution.

In recent years, the energy crisis has gotten worse as a result of global challenges like the pandemic and the Ukraine crisis. To solve this problem, researchers have focused on development of sustainable resources and renewable energy infrastructure for its potential as a promising and effective strategy. Hydrogen is a significant energy carrier that will fulfill global energy demand while also significantly reducing greenhouse gas (GHG) emissions in the future decades. The catalysts used in hydrogen generation have a substantial effect on hydrogen efficiency, however unknown parameters affecting catalyst activity throughout the catalyst preparation process are a major source of concern. The most essential components are to accurate determination the development conditions of the catalysts used in the hydrogen generation. The main objective is to produce hydrogen energy with high efficiency thereby reducing the currently usage of fossil fuels, which are currently used in transportation, industry, home, and commercial applications. This study's aim is to examine critical catalyst preparation factors (cCPF) that have an effect on the efficiency of the catalyst using the fuzzy DEMATEL method. In this regard, twelve cCPF were identified based on literature review and in consultation with experts and the causal relationships among critical factors were visualized with the proposed method. The results highlighted that the most critical CPF that should be tackled to improve hydrogen generation efficiency are: appropriate reduction temperature (F), and the appropriate reduction agent concentration (G), drying conditions (L), drying time (M) and calibration of instruments and equipment (N). The findings of this study can be used to researchers and decision-makers for improving the overall performance of catalysts. • The critical catalyst preparation factors that influence hydrogen generation were determined using the fuzzy DEMATEL method. • Critical factors were identified and evaluated with a cause-effect relationship diagram. • Reduction temperature and reduction agent concentration is found as the most important factor affecting catalyst activity. • The study provides findings that will improve the catalysts preparation process and increase their activity and efficiency. [ABSTRACT FROM AUTHOR]