Results 141 to 150 of about 50,619 (291)

Stabilization of Pd Active Sites by Defective NaY Zeolite Framework for Enhanced Stability in Dimethyl Carbonate Synthesis

EcoEnergy, EarlyView.
A tailored‐defect strategy employing sequential high‐temperature calcination and acetylacetone treatment was developed to generate framework defects in NaY zeolite while preventing the formation of strong acid sites. These defects facilitate electron transfer from Pd to the zeolite framework and stabilize the Pd2+ active sites, thereby conferring ...
Chunzheng Wang, Rongyan Mei, Shicheng Yuan, Yida Zhou, Yipu Xu, Xianglong Meng, Longgang Tao, Shutao Xu, Hailing Guo, Svetlana Mintova   +9 more
wiley   +1 more source

Insight Into the Origins of N2O Byproduct on Confinement Structure TiO2/MnSm Catalyst Through Sulfation Pre‐Treatment for Low‐Temperature NH3‐SCR Reaction

EcoEnergy, EarlyView.
Sulfation of TiO2 with tubular architecture assembly nanosheets cooperated with Sm modification endowed the TiO2–SO42−/MnSm catalyst with excellent low‐temperature NH3‐SCR activity, high N2 selectivity, and well H2O‐resistance. It clarifies how the Sm modification and sulfation adjusts the distribution of acid sites and modulates the activation of NH3 ...
Tian Zhao, Guodong Zhang, Xiaosheng Huang, Rongji Cui, Chao Feng, Zhicheng Tang   +5 more
wiley   +1 more source

Unraveling Mechanisms and Engineering Strategies for Superior Photocarrier Dynamics Toward Efficient Photocatalysis

EcoEnergy, EarlyView.
Despite its potential, photocatalysis is limited by inefficient charge carrier separation and transport. This article reviews the mechanisms, characterization methods, and strategies for improvement, concluding with future challenges in the field. ABSTRACT Photocatalysis offers a promising solution to environmental and renewable energy issues. However,
Leqi Cheng, Xin Wang, Yishen Zhang, Xinrong Zhang, Jung‐Ho Yun, Songcan Wang   +5 more
wiley   +1 more source

Mechanisms and Advanced Characterizations for Urea Electrosynthesis

EcoEnergy, EarlyView.
In this review, various mechanisms and the advanced characterizations involved in urea electrosynthesis are summarized. Furthermore, the outlook on the future potential, the challenges, and scope of these techniques for developing the urea electrosynthesis route are discussed, paving the way for the green synthesis of urea and other important chemicals.
Chu Zhang, Liwei Guo, Shuangli Li, Zihan Chen, Chunshuang Yan, Chade Lv   +5 more
wiley   +1 more source

Recent Advances in Photocatalytic Urea Synthesis via C−N Coupling From C/N‐Containing Species: A Mini Review

EcoEnergy, EarlyView.
This review systematically compares photocatalytic urea synthesis from various C (CO2, CO, CH3OH) and N (N2, NH3, NO3−) sources. It highlights C–N coupling mechanisms, key challenges, and future directions, offering a framework to guide rational catalyst design for sustainable, solar‐driven urea production.
Bo Ding, Jicheng Chen, Hongji Liang, Xiang Yu, Wensheng Zhang, Dongxue Han   +5 more
wiley   +1 more source

High performance channel injection sealant invention abstract [PDF]

High performance channel sealant is based on NASA patented cyano and diamidoximine-terminated perfluoroalkylene ether prepolymers that are thermally condensed and cross linked.
Basiulis, D. I., Rosser, R. W., Salisbury, D. P.   +2 more
core   +1 more source

Mixed‐Impurity Co‐Poisoning of NH3‐SCR Catalysts: Poisoning Mechanisms, Antagonistic Effects, and Anti‐Inactivation Strategies

EcoEnergy, EarlyView.
This review summarizes the synergistic effects of mixed impurities on ammonia‐selective catalytic reduction (NH3‐SCR) catalysts, including the poisoning mechanism of the catalyst caused by mixed impurities, the antagonistic effects between the impurities, and the research on the anti‐poisoning strategies for the catalyst in recent years.
Hongyan Xue, Manas Pal, Zhaoteng Xue, Dongsen Mao   +3 more
wiley   +1 more source

Purple Urine Bag Syndrome as a Visual Trigger for Overtreatment: A Case Report and Aggregated Literature Analysis. [PDF]

Cureus
Pippin M, Damodhar YR, Shrestha S.
europepmc   +1 more source

Recycling Ni‐Rich NCM Cathode Materials From Spent Li‐Ion Batteries as Efficient Electrocatalyst for Urea Oxidation

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Mounting battery waste demands sustainable solutions. We recycle spent NCM cathodes into high‐performance urea oxidation catalysts, enabling sustainable hydrogen production and simultaneous urea waste treatment. The burgeoning electric vehicle industry has intensified the demand for high‐energy Ni‐Co‐Mn (NCM) cathodes, yet their end‐of‐life management ...
Wencheng Su, Chao Wang, Huiyan Zeng, Jianwen Wang, Long Gu, Mengxian Li, Liting Deng, Chi‐Ying Vanessa Li, Chunzhen Yang   +8 more
wiley   +1 more source

Dietary exposure to N-nitrosamines and their precursors: an age-stratified assessment. [PDF]

Sci Rep
Zapico A, Herrero-Morin D, Arboleya S, de Los Reyes-Gavilán CG, Gueimonde M, González S.   +5 more
europepmc   +1 more source