Potential-Driven In Situ Formation of CuS@Cu2Se with Se-Vacancy-Rich for Steering the CO2 Electroreduction Path from HCOOH to C2H5OH

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(23), P. 8272 - 8284

Published: Jan. 1, 2024

This manuscript describes the intrinsic relationship between potential-dependent HCOOH/C 2 H 5 OH selectivity and dynamically evolved copper chalcogenides under CO electroreduction process.

Language: Английский

---

Cu-based Bimetallic Catalysts for Electrochemical CO2 Reduction: Before and Beyond the Tandem Effect

Nanoscale, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Cu-based bimetallic catalysts show enhanced electrochemical CO 2 reduction performance via the tandem effect. This review traces their progress, highlighting design advances, mechanisms, and challenges to guide efficient conversion.

Language: Английский

---

Comprehensive Understanding of the Structural Modulation Principles for Highly Efficient Photoelectrochemical/Photocatalytic Processes via X‐Ray Absorption Spectroscopy

ChemCatChem, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Abstract Photoelectrochemical (PEC) and photocatalytic (PC) reactions offer promising pathways toward the efficient conversion of intermittent solar energy into high value‐added chemicals. To improve efficiency energy, rational modulation both light absorbers surface sites is required for sunlight‐harvesting capacity reaction activity, yet depending on a comprehensive understanding process. In this regard, X‐ray absorption spectroscopy (XAS) plays critical role in probing electronic geometric structures active materials PEC PC reactions, thereby revealing related structure‒activity relationships providing guide further structural modulation. This review begins with principles PEC/PC reactions. The fundamental knowledge XAS then introduced, including basics near edge structure (XANES) extended fine (EXAFS), general experimental methods, situ technique. Furthermore, we provide several examples to illustrate how can be utilized reveal (e.g., water splitting, CO 2 reduction, N fixation). Finally, major challenges future opportunities exciting field are highlighted.

Language: Английский

---

Polyoxometalate-Based Ag^I-MOF for Promoting Catalytic Conversion of CO₂ and Propargylic Alcohols under Mild Conditions

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

The conversion of carbon dioxide to high-value chemicals is greatly significant green chemistry. cyclization reaction CO2 with propargyl alcohol form α-alkylidene cyclic carbonates has attracted attention due atomic economy. Silver (AgI) emerged as one the most effective activators for alkynes, attributed its distinctive electronic configuration affording a specific affinity alkynes. Herein, two novel AgI-based metal-organic frameworks containing Keggin PMo12O403- (abbreviated {PMo12}), namely, {Ag3(btap)3[PMo12O40]}·H2O (Ag-1) and {Ag(Hbtap)2[PMo12O40]} (Ag-2, btap 3,5-bis(1',2',4'-triazol-1'-yl)pyridine), were successfully synthesized. Ag-1 exhibits both exceptional thermal solvent stability, along high catalytic activity in various substituted propargylic alcohols into α-alkyl at room temperature atmospheric pressure. highly dispersed AgI {PMo12} sites are beneficial superior performance Ag-1, by activating C≡C bond adsorbing dioxide, respectively. Based on results, structural analysis, classical chemical theory, it speculated that three-coordinated silver higher Lewis acidity compared Ag-2, making easier activate substrate. Notably, catalyst outstanding stability negligible loss over least five successive cycles.

Language: Английский

---

Electrochemical reduction of CO2 to liquid products: Factors influencing production and selectivity

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 128, P. 800 - 832

Published: April 25, 2025

Language: Английский

---