Results 141 to 150 of about 269,403 (285)

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

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

Small aggregates can cause nitrite accumulation in one-stage partial nitritation and anammox [PDF]

, 2010
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Carballa, Marta, De Clippeleir, Haydée, Schaubroeck, Thomas, Smets, Barth F, Terada, Akihiko, Verstraete, Willy, Vlaeminck, Siegfried   +6 more
core   +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

Media Optimization, Strain Compatibility, and Low-Shear Modeled Microgravity Exposure of Synthetic Microbial Communities for Urine Nitrification in Regenerative Life-Support Systems

, 2019
Urine is a major waste product of human metabolism and contains essential macro- and micronutrients to produce edible microorganisms and crops. Its biological conversion into a stable form can be obtained through urea hydrolysis, subsequent nitrification,
Boon, Nico, Clauwaert, Peter, Defoirdt, Tom, Ilgrande, Chiara, Vlaeminck, Siegfried   +4 more
core   +1 more source

Phosphate and fluoride removal options for Hanford high‐level waste sludge processing

Environmental Progress &Sustainable Energy, EarlyView.
Abstract High‐phosphate and high‐fluoride sludges represent some of the most challenging waste streams within the Hanford High‐Level Waste (HLW) inventory due to solubility constraints, impacts on glass loading, and corrosion risks during vitrification.
A. M. Westesen, K. J. Murray, A. A. Bachman, A. M. Robb, R. A. Peterson   +4 more
wiley   +1 more source

Comparative Effects of Three Microbial Starter Cultures on the Physicochemical and Sensory Quality of Fermented Sausages

Food Bioengineering, EarlyView.
ABSTRACT This study innovatively links specific microbial compositions of commercial starter cultures to the evolution of key odorant and taste‐active amino acids, revealing the underlying mechanisms behind distinct flavor profiles. Three microbial starter cultures—Saccharomyces cerevisiae (SC), Scarlet (ST), and Roxaane LC (LC), were added to sausages,
Lili Ji, Yi Luo, Rui Yang, Song Yang, Xiaoping Yu, Hongqian Zhang, Kun Liao, Jiamin Zhang   +7 more
wiley   +1 more source

Antioxidant Activity and Inhibition of Carbohydrate Hydrolyzing Enzymes by Underutilized Parts From Some Plant‐Based Foods and Their Effect on Postprandial Hyperglycemia

Food Chemistry International, EarlyView.
The underutilized parts viz: pawpaw seed, banana, plantain, and potato peels showed promising antioxidant and inhibition of α‐amylase and α‐glucosidase activities (IC50 values ≤ 100 μg/mL). Similarly, pawpaw seed, banana, plantain, and potato peels reduced postprandial hyperglycemia in sucrose‐ and maltose‐induced hyperglycemia in rats.
Aminu Mohammed, Buhari Shehu Saidu, Nuhu Aliyu, Michael Peter Simon   +3 more
wiley   +1 more source

Nitrogen Oxide Concentrations in Natural Waters on Early Earth

, 2019
A key challenge in origins-of-life studies is estimating the abundances of species relevant to the chemical pathways proposed to have contributed to the emergence of life on early Earth.
Babbin, Andrew R., Ranjan, Sukrit, Rimmer, Paul B., Sasselov, Dimitar D., Todd, Zoe R.   +4 more
core   +1 more source