What does this research mean for the field?

Rare-earth doping of Cu2S, particularly with Europium and Ytterbium, enhances electrocatalytic activity for ethylene electrocarboxylation to succinic acid by optimizing electronic and geometric characteristics. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To theoretically design rare-earth-doped copper sulfide electrocatalysts and assess their mechanism and performance in carbon dioxide activation and ethylene electrocarboxylation.

August 22, 2026Precision ChemistryOpen Access

Enhanced CO2 Activation and Ethylene Electrocarboxylation on Rare-Earth Doped Cu2S: Insights from Electronic and Geometric Modulation

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Authors

KZKaini ZhangXi'an Jiaotong University SSShaohua ShenJiujiang University

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Implication

Computational modeling demonstrates enhanced carbon dioxide activation and ethylene electrocarboxylation on rare-earth-doped copper sulfide, indicating a strategy for producing succinic acid.

Key Points

To theoretically design rare-earth-doped copper sulfide electrocatalysts and assess their mechanism and performance in carbon dioxide activation and ethylene electrocarboxylation.
Theoretically modeled M@Cu2S electrocatalysts by substituting a surface copper atom on the Cu2S(111) facet with various rare-earth metals (M).
Evaluated catalyst stability, formation and binding energies, reaction pathways, limiting potentials, and electronic/geometric structure–activity relationships.
All designed M@Cu2S catalysts displayed favorable structural stability with negative formation and binding energies, promoting a bridge-bonded CO2 configuration where hydrogenation acts as the potential-determining step.
Eu@Cu2S and Yb@Cu2S demonstrated superior catalytic performance, exhibiting limiting potentials of 0.97 V and 0.81 V versus the standard hydrogen electrode, respectively.
Dopants with higher third ionization energies and larger atomic radii correlated with lower limiting potentials and enhanced electrocarboxylation of ethylene to succinic acid.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/6a895f87ca7ade938187e444 https://doi.org/10.1021/prechem.6c00086

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Implication

Computational modeling demonstrates enhanced carbon dioxide activation and ethylene electrocarboxylation on rare-earth-doped copper sulfide, indicating a strategy for producing succinic acid.

Enhanced CO2 Activation and Ethylene Electrocarboxylation on Rare-Earth Doped Cu2S: Insights from Electronic and Geometric Modulation

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Implication

Key Points

Cite This Study

Enhanced CO2 Activation and Ethylene Electrocarboxylation on Rare-Earth Doped Cu2S: Insights from Electronic and Geometric Modulation

Discussion

Member takes

Implication

Key Points

Cite This Study

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