Results 41 to 50 of about 103,149 (267)

Insight into dynamic and steady-state active sites for nitrogen activation to ammonia by cobalt-based catalyst

Nature Communications, 2020
The industrial synthesis of ammonia using iron-based Haber-Bosch catalyst requires harsh reaction conditions. Here the authors show co-existence of dynamic and steady-state single atom active sites over Co-N-C catalyst to facilitate nitrogen activation ...
Xiuyun Wang, Xuanbei Peng, Wei Chen, Guangyong Liu, Anmin Zheng, Lirong Zheng, Jun Ni, Chak-tong Au, Lilong Jiang   +8 more
doaj   +1 more source

Modeling and performance improvement of an industrial ammonia synthesis reactor

Chemical Engineering Journal Advances, 2021
Ammonia production from synthesis gas is one of the most important processes in the petrochemical industry. A heterogeneous model is used to improve the efficiency of an industrial ammonia synthesis reactor including three adiabatic catalyst beds.
Ahmad Shamiri, Nia Aliabadi
doaj   +1 more source

Spatially Decoupling Heating and Evaporation for Convection‐Enhanced 3D Solar Evaporation With Continuous Salt Harvesting

Advanced Functional Materials, EarlyView.
An architecture‐enabled bottom‐heated 3D solar convective evaporator spatially decouples photothermal heating from evaporation, triggering natural convection that intensifies sidewall vapour removal and heat transfer. The system achieves significantly enhanced evaporation rates over 2D and conventional 3D designs while confining salt precipitation to ...
Xiaolong Ma, Yan Zhao, Yan Yan, Muhammad Amjad, Guice Yao, Hui Gao, Shudan Wei, Dongsheng Wen   +7 more
wiley   +1 more source

Stability of Cs/Ru/MgO Catalyst for Ammonia Synthesis as a Hydrogen and Energy Carrier

Energies, 2022
The Cs/Ru/MgO catalyst was synthesized by sequential impregnation of Ru and Cs on MgO support using Ru(NO3)3 and CsNO3 precursors. Catalytic ammonia synthesis was carried out in a fixed-bed flow reactor using H2 and N2 as reactants.
Rahat Javaid, Tetsuya Nanba
doaj   +1 more source

General Synthesis of Amorphous Pd‐Based Nanoparticles Towards Highly Efficient Nitrate‐to‐Ammonia Electrocatalysis

Advanced Functional Materials, EarlyView.
A family of amorphous palladium‐based multi‐component phosphides nanoparticles, synthesized via a robust one‐step wet‐chemical method, overcoming the immiscibility of different elements and the difficulty in forming a stable, disordered structure. When applied in the electrochemical nitrate reduction reaction, these nanocatalysts effectively suppress ...
Lei Xu, Chuhao Luan, Mingzi Sun, Weiwei Chen, Xiaozhi Liu, Chen Ma, Long Zheng, Gang Wang, Peng Han, Ping Gu, Xiao Wang, Chenhao Shu, Cheng Lyu, Zhenyu Zhang, Nailiang Yang, Hongyan He, Xiaohong Li, Dong Su, Bolong Huang, Wenjun Zhang, Ye Chen   +20 more
wiley   +1 more source

Current status and development trends of technologies for the full industry chain of liquid ammonia synthesis, storage, transportation, and application

You-qi chuyun
ObjectiveAmmonia serves as a core carrier in the zero-carbon energy system and an essential chemical feedstock. The technological advancement of its full industry chain is crucial for advancing energy transition and fulfilling carbon peaking and carbon ...
Yuxing LI, Yiting LIU, Hanjing ZHANG, Xinran YU, Cailin WANG   +4 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

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

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, Xuesen DU, Xiaojun SU, Chaofan LI, Xiaoqiang SHEN, Chenlong HU   +5 more
doaj   +1 more source

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

Crystals
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, Constantinos D. Zeinalipour-Yazdi   +1 more
doaj   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source