Coordination Environment in Single‐Atom Catalysts for High‐Performance Electrocatalytic CO<sub>2</sub> Reduction
Why this work is in the frame
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Bibliographic record
Abstract
The electrochemical reduction of carbon dioxide (EC CO 2 RR) is a promising technology to achieve a carbon‐neutral society. EC CO 2 RR can directly convert the greenhouse gas emitted from stacks into valuable fuels and chemical feedstocks for various industrial applications. Numerous metal‐based electrocatalysts have been researched to reduce overpotential and enhance the product selectivity of CO 2 RR. Recently, single‐atom catalysts (SACs) are attracting intensive attention due to their low‐cost, extremely high activities per loading amounts, and extensive stability of catalytic active sites due to the strong chemical interaction with coordination atoms. The coordination environments of SACs affect the electronic structure of active sites and change the energetics of the CO 2 RR pathways. Herein, the principles of EC CO 2 RR, including reaction mechanisms, figures of merits, and electrolysis systems, are first discussed. Then, the recent progress in the synthesis and characterization of SACs on various supports is accessed. Most importantly, the coordination environments of single‐metal atoms and their influence on CO 2 RR catalytic ability, product selectivity, and active site stabilization are focused. This review provides a milestone along the design of SACs from the perspective of optimizing atomic configuration surrounding the active sites for EC CO 2 RR.
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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 it