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Updates every hour. Last Updated: 15-Jun-2026 07:16 ET (15-Jun-2026 11:16 GMT/UTC)
The dual electronic effects of alloying and synergistic surface oxygen vacancy in PtCo/CeZrOx enhance NOx reduction by CO
Tsinghua University PressThe regulation of electron transfer is crucial for enhancing the catalytic efficiency of catalysts. Currently, CO selective reduction of NOx (CO-SCR) catalysts with surface synergistic oxygen vacancies (SSOVs) or alloyed components exhibit superior performance but face challenges of reduced activity and stability in oxygen-rich environments. Here, we demonstrate a strategy that combines PtCo alloys (0.01% Pt; 0.04% Co) with SSOVs in cerium zirconium oxide solid solution to interactively modulate the electronic structure, resulting in a significant enhancement of both the activity and stability of the catalyst under oxygen-rich conditions. This catalyst achieved over 85% NO conversion at 300 ℃ and 5% O2, while maintaining approximately 100% N2 selectivity during 20 h-stability testing, surpassing the performance of the monometallic catalysts. This enhancement arises from the synergistic electronic effects of alloying and SSOVs, which generate negatively charged Pt that facilitates NO adsorption and dissociation, while concurrently producing electron-deficient SSOVs that weaken O2 chemisorption and promote the formation of moderate reactive oxygen species. Moreover, the preferential adsorption of CO on Co sites alleviates competitive adsorption.
- Journal
- Nano Research
Valence control unlocks bifunctional copper catalyst for sustainable chemical production
Tsinghua University PressPrecise control of copper's oxidation states in nanorod catalysts enables simultaneous nitrate wastewater purification and glycerol upcycling. Partially reduced copper oxide nanorods convert nitrate to ammonia at 96.8% efficiency, while fully oxidized versions transform glycerol into formate at 93% efficiency. The integrated system slashes energy consumption by 53.5%, offering a sustainable path for chemical production and environmental remediation.
- Journal
- Nano Research
Pseudohalide engineering for crystallization kinetics and defect passivation in two-step fabricated Cs0.1FA0.9Pb0.9Sn0.1I3 perovskite solar cells with exceptional efficiency and stability
Tsinghua University PressThermal stability and environmental sustainability are paramount to the practical deployment of perovskite solar cells (PSCs), which are designed to harness solar energy through high-efficiency and low-cost photovoltaic technology. Pseudo-halide thiocyanate anions (SCN⁻), employed as a crystallization modulator, have emerged as an ideal candidate for tailoring the formation of high-quality mixed-cation perovskite films, paving the way for a new era of efficient and high-quality PSCs.
- Journal
- Nano Research
Latest research on Environmental Chemistry and Ecotoxicology, providing science-based information for sustainable management of ecosystems.
KeAi Communications Co., Ltd.- Journal
- Environmental Chemistry and Ecotoxicology
Multiphase structures build heterogeneous interfaces to promote interface polarization loss electromagnetic waves
Tsinghua University PressThe application of electromagnetic technology is becoming increasingly widespread, constantly expanding the scope of people's lives. However, the promotion and application of these electromagnetic products will also generate a large amount of electromagnetic waves (EMW), causing serious electromagnetic pollution. The design and preparation of high-performance EMW absorption materials is crucial, and composite materials with multiphase non-uniform interfaces are an ideal research object.
- Journal
- Nano Research
Innovative nanofiber network paves the way for next-gen lithium metal batteries
Tsinghua University PressA breakthrough in battery technology has been made with the development of a polyvinylidene fluoride (PVDF)-Li₂CO₃ nanofiber network. This new material, developed through electrospinning, serves as a host for stable lithium metal plating and stripping, enabling a lithium metal anode for a battery. By integrating lithium carbonate into the nanofiber structure, researchers have created a more uniform lithium deposition, reducing dendrite formation and enhancing battery performance.
- Journal
- Nano Research
Technological innovations and high-throughput applications of light-sheet microscopy
Higher Education PressLight-sheet fluorescence microscopy (LSFM), with its innovative design of selective plane illumination and orthogonal detection optics, significantly reduces phototoxicity and photobleaching inherent in conventional microscopy, providing a revolutionary tool for long-term dynamic imaging of living specimens.
- Journal
- Biophysics Reports
A novel approach to enhancing the reliability of ensemble forecasts for unusual tropical cyclone tracks: The O-CNOPs
Science China PressIn a recent study published in Science China Earth Sciences, a team of researchers proposed using an orthogonal conditional nonlinear optimal perturbations (O-CNOPs) method to tackle the challenge of forecasting unusual tropical cyclone (TC) tracks. Their findings revealed that this method exhibits exceptional capability in generating ensemble members that accurately predict sharp TC turns. The O-CNOPs method holds potential as a transformative tool for addressing the forecasting challenge, offering a more precise and reliable solution for predicting TC behavior.
Forecasting unusual TC tracks has long been a persistent challenge in TC prediction, with limited progress made over the years. However, this study demonstrated that the O-CNOPs outperformed traditional methods [singular vectors (SVs) and bred vectors (BVs)] by providing more stable and reliable improvements in TC track forecasting skills. Notably, at lead times of one to five days, the O-CNOPs showed superior ability to generate ensemble members that accurately predict sharp TC turns. Thus, the study offers a new ensemble forecasting technology to enhance the accuracy of unusual TC track forecasts, with potential for becoming a valuable approach to address this forecasting challenge.
- Journal
- Science China Earth Sciences