21:I[432972,["/_next/static/chunks/bb923814e1f4d2e9.js","/_next/static/chunks/dd3ee9f5b7716ca6.js","/_next/static/chunks/4204a0ae82542ca8.js","/_next/static/chunks/1270dead247da766.js","/_next/static/chunks/6e1aa89a642f40be.js","/_next/static/chunks/2d7aa753e81324a8.js","/_next/static/chunks/8ffd0b71567920d8.js","/_next/static/chunks/67ea6dfd21f16c5f.js","/_next/static/chunks/24eb4379f68013fd.js","/_next/static/chunks/b8cd775ffdf935bd.js","/_next/static/chunks/983103cd9eb7b428.js","/_next/static/chunks/263f2cdcb9aa2341.js","/_next/static/chunks/294b9525248c8e5f.js"],"default"] 22:T522,The photocatalytic reduction of CO₂ to high-value C₂ products involves sluggish multiple proton-electron couplings, resulting in low efficiency and selectivity. This study demonstrates that palladium (Pd) single-atom (Pd_SA)- and Pd nanocluster (Pd_NCs)-loaded CeO₂ with abundant oxygen vacancies (O_v) synergistically enhance photocatalytic CO₂-to-ethane (C₂H₆) conversion effectively and selectively. The Pd_SA+NCs/CeO₂ photocatalyst achieves 80.4% electron selectivity for C₂H₆ production with an electron consumption rate of 206.3 μmol g_cat^-1 h^-1 in pure water, representing a 172.4-fold enhancement over pristine CeO₂. Pd_NCs interact with neighboring Pd_SA and O_v to form a Fermi level with the continuous characteristics of discrete energy levels, improving the charge distribution in local spatial electric fields. This enhancement favors electron migration from the π to σ orbital of COCO*, promoting C-C coupling. Our findings provide new insights to rationally design synergistic interactions between SA, NCs, and O_v to achieve high selectivity toward C₂ products.23:T51c,To address the environmental crisis caused by excessive emissions of CO₂ , the development of effective photocatalysts for the conversion of CO₂ into chemicals has emerged as one of the most promising strategies. Herein, beyond those well-studied materials, a rare-earth sulfide-based nanocrystal NaCeS₂ is fabricated and investigated for efficient and selective conversion of CO₂ into CO, where the role of Ce ions is crucial. Firstly, the hybridization of Ce 4f and Ce 5d orbitals contributes to the photoresponsive band structure of NaCeS₂ . Secondly, due to the charge rearrangement supplied by the incompletely filled 4f orbitals of Ce ions, NaCeS₂ exhibits excellent charge separation efficiency and CO₂ adsorption affinity, reducing the energy barrier for the conversion from CO₂ to CO. Moreover, a NaCeS₂ -MoS₂ heterostructure is also designed to further boost the electron transfer from the Mo site to the Ce site, which results in an improvement of the catalytic reduction yield from 7.24 to 23.42 µmol g^-1 within 9 h (both better than TiO₂ controls). This work offers a platform for the development of rare-earth-based photocatalysts for CO₂ conversion.

#	Concept	H-Index	Publications	Citations
1	Engineering	1	1	109
2	Chemical Engineering	1	1	109
3	Chemistry	1	1	109
4	Materials Science	1	1	109
5	Catalysis	1	1	109

	Year	Citations

About

Top Concepts