Results 61 to 70 of about 275,793 (312)

Development Prospects and Application Scenarios of Green Ammonia Energy Industry Under the Background of Carbon Peak and Neutrality

open access: yes南方能源建设, 2023
[Introduction] As a zero-carbon fuel, ammonia is easy to achieve safe and low-cost transportation and thus is considered to be an ideal energy source with the same development potential as hydrogen energy.
Zhibin LUO   +4 more
doaj   +1 more source

Low-T Mechanisms of Ammonia Synthesis on Co3Mo3N [PDF]

open access: yes, 2018
Dispersion-corrected periodic DFT calculations have been applied to elucidate the Langmuir–Hinshelwood (dissociative) and an Eley–Rideal/Mars–van Krevelen (associative) mechanism for ammonia synthesis over Co3Mo3N surfaces, in the presence of surface ...
Catlow, CRA   +2 more
core  

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

open access: yesAdvanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari   +4 more
wiley   +1 more source

Recent Advances in Ammonia Synthesis Modeling and Experiments on Metal Nitrides and Other Catalytic Surfaces

open access: yesCrystals
In this review, we explore the recent progress in catalytic materials for the ammonia syntheses that are based on metal nitrides and other catalytic surfaces.
Numair Elahi   +1 more
doaj   +1 more source

Splanchnic metabolism of nutrients and hormones in steers fed alfalfa under conditions of increased absorption of ammonia and L-arginine supply across the portal-drained viscera [PDF]

open access: yes, 2005
Effects of increased ammonia and/or arginine absorption on net splanchnic (portal-drained viscera [PDV] plus liver) metabolism of nonnitrogenous nutrients and hormones in cattle were examined.
Assan   +42 more
core   +1 more source

Formation of Stable Amorphous Calcium Phosphate and Collagen Assemblies by a Versatile Spray‐Drying Approach

open access: yesAdvanced Functional Materials, EarlyView.
Amorphous calcium phosphate (ACP) microparticles with long‐term and thermal stability are prepared with or without collagen using a scalable one‐pot spray‐drying process. Under simulated physiological conditions, they crystallize into biomimetic bone mineral and, when combined with collagen, form extrudable, fibrillar bone‐like 3D constructs.
Camila Bussola Tovani   +13 more
wiley   +1 more source

Perspectives on electrochemical nitrogen fixation catalyzed by two-dimensional MXenes

open access: yesMaterials Reports: Energy, 2022
Ammonia is the most basic raw material in industrial and agricultural production. The current industrial production of ammonia relies on the Haber-Bosch process with high energy consumption.
Tiezhu Guo   +2 more
doaj   +1 more source

Ornithine-catalyzed urea formation in liver homogenate [PDF]

open access: yes, 1947
Heretofore attempts to obtain synthesis of urea from ammonia (and carbon dioxide) in cell-free extracts have been unsuccessful. We have found the reaction to proceed in guinea pig liver homogenate.
Borsook, Henry, Dubnoff, Jacob W.
core  

Fabrication of Pyridinic Nitrogen‐Functionalized Carbon Cloth for High‐Performance Iron‐Chromium Flow Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The carbon cloth electrode with targeted pyridinic nitrogen doping, achieved via urea pyrolysis, effectively modulates the adsorption of Cr(II) species and enhances electron transfer, leading to significantly improved kinetics of the Cr(II)/Cr(III) reaction. The material demonstrates a high discharge capacity of 689.3 mAh and an energy efficiency of 72.
Jinfeng Yi   +9 more
wiley   +1 more source

Research on Plasma-Synergized Catalytic Ammonia Synthesis Based on Supported SBA-15 Catalysts

open access: yes能源环境保护
Plasma-catalytic ammonia synthesis has garnered significant attention due to its potential for reducing energy consumption and mitigating environmental impact, emerging as a promising alternative to traditional thermal catalytic ammonia synthesis ...
Jinfei CHEN   +5 more
doaj   +1 more source

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