Morphology and agglomeration of copper chloride particles in thethermochemical Cu-Cl cycle of hydrogen production
Bibliographic record
Abstract
Abstract: Hydrogen generation from the thermochemical copper-chloride (Cu-Cl) cycle is a promising clean energy process due to lower operating temperature relative to comparable cycles and can be integrated with solar and nuclear systems. This study focuses on the impact of CuCl2 particle size and morphology in the hydrolysis reaction step. The particle size was studied using crushing and crystallization, and the morphology was analyzed using a scanning electron microscope (SEM). This data was used as input into the shrinking core model (SCM) and compared with previous experimental data. Prior to crushing and crystallization, the material had a monodisperse size distribution with a diameter between 70 - 200 µm and a length of 200 - 650 µm. After crushing, the material was non-uniform in shape and sizes with a cylindrical or cuboid shape with a diameter of 20 - 70 µm and length range of 30 - 150 µm. Particles less than 10 µm were spherical in shape. Agglomerated particles forming irregular flakes were observed after crystallization. Furthermore, the SCM indicated that the reaction control step with spherical particle assumption is the most accurate model.
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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 | 0.000 | 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".