Advances in Oxygen Defect‐Mediated Photothermal Catalytic CO₂ Hydrogenation Reduction

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Abstract Photothermal (PT) catalysis significantly reduces the activation energy of reactions through a synergistic PT effect, resulting in milder reaction conditions and improved catalytic efficiency compared to traditional thermal methods, which is widely applied CO 2 reduction. Engineering oxygen defects (O v ) can induce substantial alterations structure function catalysts, thereby greatly influencing their performance. Consequently, design development catalysts with abundant O essential for advancing reduction utilization. This paper systematically reviews recent developments, advancements, future prospects defect‐mediated First, fundamental concepts principles are summarized, followed by an overview various types oxides, including TiO , ZrO In 3 among others. Then techniques methods used characterizing outlined. Subsequently, progress application detailed, specifically focusing on synthesis C1 C 2+ chemicals. Finally, findings summarized directions proposed review provides timely comprehensive mechanisms underlying reduction, emphasizing its significance enhancing resource

Language: Английский

Efficient Measurement and Validation of Nitrite with 5% Nafion‐Coated with Low‐Dimensional Fe₂O₃ Nanoparticle by Linear Sweep Voltammetry Approach

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(11)

Published: March 1, 2025

Abstract In this approach, low‐dimensional Fe₂O₃ nanoparticles (NPs) synthesized using wet‐chemical methods in an alkaline medium were comprehensively characterized Fourier transform infrared spectroscopy (FTIR), field‐emission scanning electron microscopy (FESEM), cyclic voltammetry (CV), X‐ray photoelectron (XPS), transmission (TEM), and diffraction (XRD) before their application nitrite sensing. These analyses detailed the morphology, optical properties, crystallinity, elemental composition, electro‐catalytic behavior. Fabricated with a 5% Nafion coating on glassy carbon electrode (GCE), NPs facilitated efficient electrochemical oxidation of through two‐electron transfer, enabling precise detection. The sensor demonstrated high sensitivity 1.66 µAmM −1 cm −2 , reproducibility, reliability, surpassing conventional detection methods. Nitrite concentration wide linear dynamic range (LDR) from 2.4 to 13.4 mM, displayed clear current response increasing applied potential. also exhibited low limit (LOD) 8.6 × 10 −6 M, quantification (LOQ) 26.1 enhanced sensitivity, selectivity, stability, consistent performance repeated tests over 50 cycles LSV. This work introduces effective approach for nanostructures, validated real environmental samples RSD between 0.415% 0.866%, whereas recoveries recorded 98% 99.38%, providing robust sustainable solution monitoring.

Language: Английский

Exploring novel strategies and integrated systems for photothermal catalytic hydrogen production

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162794 - 162794

Published: April 1, 2025

Language: Английский