Results 181 to 190 of about 10,667,646 (310)

Metal‐Support Interaction Triggered Electronic Reconstruction in Pd/CoN‐Co4N Catalysts for Optimizing MEK Oxidation and Poisoning Resistance

Advanced Science, EarlyView.
The strengthened EMSI in Pd/CoN‐Co4N induces electronic rearrangement, generating abundant Pd0 species in situ, modulating the Pd d‐band center to enhance O2 adsorption and MEK activation. Concurrently, it creates numerous Lewis acid sites that preferentially adsorb poisons and shield the active sites.
Yadi Wang, Chaoqian Ai, Cai Wang, Zeyu Jiang, Jialei Wan, Jingjing Wang, Xiangbo Feng, Chi He   +7 more
wiley   +1 more source

NH3 Formation in Synthesis and Dehydrogenation of Alkali Metal Amidoboranes

, 2009
1. The exothermic reaction of NaH-NH3BH3 triggers the reaction between the NaNH2BH3 formed and unreacted NH3BH3, resulting in NH3 formation in the ball milling process 2.Conditions for ball milling NaH-NH3BH3 have to be carefully controlled to prevent ...
蔡永胜, 吴国涛, 陈萍, 熊智涛, 吴成章, 郭建平   +5 more
core  

A General Enzymatic Strategy for Site‐Specific Incorporation of Modified Genetic Building Blocks Into DNA

Advanced Science, EarlyView.
Eco‐friendly enzymatic synthesis of high‐fidelity, site‐specifically modified DNA using 3′‐blocked nucleotides for full synthetic control and next‐generation sequencing compatibility. ABSTRACT Methods for site‐specific incorporation of modified DNA building blocks remain limited.
Raveena Raveena, Bhavana Ramadas, Sidney Becker   +2 more
wiley   +1 more source

Longitudinal Changes in Glutamine and Ammonia in Relation to Hyperammonemic Crisis in Urea Cycle Disorders. [PDF]

JIMD Rep
Yasuda Y, Nakajima Y, Sudo Y, Ishihara T, Ito T.   +4 more
europepmc   +1 more source

Photoelectric‐Coupled Ferroelectric Heterojunctions for Ultrahigh NO2 Sensing With Polarization‐Memory‐Assisted Interfacial Modulation

Advanced Science, EarlyView.
This study demonstrates a Bi2WO6/SrBi2Ta2O9 heterojunction where light‐driven ferroelectric polarization reversal couples with persistent photoconductivity, enabling exclusive NO2 selective room‐temperature sensing. The device achieves a two‐order‐of‐magnitude sensitivity enhancement over an unpolarized device, a sub‐ppb detection limit, and robust ...
Liping Tan, Xuefeng Hu, Ming Zhou, Weiwei Qing, Along Li, Zilong Wang, Mudan Feng, Shuang Zhao, Xiaoliang Wang, Peipei Li, Yali Bi, Wei Zhang   +11 more
wiley   +1 more source

Volatilized Ammonia Supports Subterranean Ecosystems with Unusual Nitrogen Isotopic Signatures. [PDF]

Environ Sci Technol
Best MB, Wankel SD, Graham HV, Stern JC, Macalady J, Mainiero M, Recanatini S, Mariani S, D'Angeli I, Vaccarelli I, Jones DS.   +10 more
europepmc   +1 more source

Adubação nitrogenada e perdas de N-NH3 de fontes convencionais e de eficiência aumentada na cultura do milho

, 2018
Nitrogen fertilizers are essential for crops under tropical conditions express their productive potential. Among these fertilizers urea is the most widely used in agriculture and due to the need to reduce their losses by volatilization when applied on the soil surface, the urea has become the conventional fertilizer most used for the development of ...
openaire   +1 more source

Robust Amorphous MOF‐Based Aerogels Digital Biosensor for Sensitive Detection of Organophosphate Pesticides

Advanced Science, EarlyView.
We report a robust aerogel digital biosensor by integrating an enzyme‐mediated amorphous MOF within an aerogel matrix for on‐site pesticide detection. The enzyme‐mediated assembly strategy enables in situ tailoring of MOF into a porous amorphous structure, achieving both high stability and activity.
Changshun Su, Xiangyu Zhai, Houru Li, Yijie Wang, Hongxia Li, Yueyao Jiang, Geyu Lu, Xu Yan   +7 more
wiley   +1 more source

Promoting direct C─N coupling via NO intermediate modulation for highly selective electrochemical urea synthesis. [PDF]

Sci Adv
Zhang X, Shi Z, Zuo Y, Yu D, He Q, Sun L, Yang W, Shan J, Wang X.   +8 more
europepmc   +1 more source

Dynamic Reconstruction‐Engineered Heterointerfaces for Acidic Hydrogen Evolution at Ampere‐Level Current Density

Advanced Science, EarlyView.
A dynamic reconstruction strategy was utilized to construct PtCu/Cu3P heterostructures on the surface of self‐supporting Cu3P nanowires. The loose porosity in the restructured layer, together with a dynamic “dissolution‐redeposition” equilibrium during electrocatalysis, enables the electrode to maintain a low, stable overpotential for 240 h at ampere ...
Kaixi Wang, Yunshan Zheng, Chengzong Yuan, Kwun Nam Hui   +3 more
wiley   +1 more source