Results 31 to 40 of about 31,484 (198)

Accelerated Discovery‐to‐Unveiling of High‐Performance and Affordable Ammonia Electrode Process by Human–Machine Collaboration Framework

Angewandte Chemie, EarlyView.
By employing dimensionally reduced reaction descriptors, a human–machine collaboration framework for efficient electrochemical nitrate reduction to NH3 electrocatalysts screening is established and drastically shorten the discovery timeframe. A new kinetic model is established in combination with a rotating ring‐disk electrode, unveiling the pivotal ...
Yingying Cheng, Masaki Takeguchi, Abraham Castro Garcia, Ken Sakaushi   +3 more
wiley   +2 more sources

Sustainable nitrogen fixation: Agrochemical research in food production adapted to planetary limits

Mètode Science Studies Journal: Annual Review
Today's global food production depends on the fixation of atmospheric nitrogen by using the Haber-Bosch process. The application of this catalytic system laid the foundations for the development of industrial agriculture and led to an unprecedented ...
Lluís Pascual, Emanuela Accardo, Hermenegildo Garcia Baldoví   +2 more
doaj   +1 more source

Production of Ammonia from Low Rank Coal Employing Chemical Looping and Haber-Bosch Process

Chemical Engineering Transactions, 2017
An integrated production system of ammonia from low rank coal (LRC) is proposed and evaluated in this study. It unites several processes: coal direct chemical looping, nitrogen production, ammonia synthesis, and power generation. To effectively integrate
M. Aziz, T. Oda, A. Morihara, T. Kashiwagi   +3 more
doaj   +1 more source

Microwave-enhanced catalytic ammonia synthesis under moderate pressure and temperature

Catalysis Communications, 2021
In this study, an alternative approach based on microwave-enhanced ammonia synthesis for Haber-Bosch process was carried out under moderate pressure of 0.1–0.65 MPa and temperature range of 280–400 °C over a stable CsRu/CeO2 catalyst.
Yuxin Wang, Tuhin S. Khan, Christina Wildfire, Dushyant Shekhawat, Jianli Hu   +4 more
doaj   +1 more source

Wrinkled Strain‐Enriched High‐Entropy Metallene Enables Cross‐Site Tandem Nitrate‐to‐Ammonia

Angewandte Chemie, EarlyView.
A wrinkled 2D PdFeCoNiCuIn high‐entropy metallene overcomes the low atom utilization of high‐entropy alloys. Indium‐induced strain and p‐d hybridization enable a cross‐site tandem pathway for nitrate reduction to ammonia. It achieves 99.3% Faradaic efficiency and an NH3 yield rate of 4.55 mmol h−1 mgcat−1.
Tianfang Yang, Yang Liu, Menghao Kong, Shilong Li, Shizhe Liu, Guanjie He, Shuyan Gao   +6 more
wiley   +2 more sources

Intuitive study on the effect of support morphology over Cs-Ru/CeO2 catalyst for microwave-initiated ammonia synthesis

Catalysis Communications, 2022
Microwave-initiated ammonia synthesis is a potential candidate to the current Haber-Bosch process that can operate from stranded renewable energy source.
Alazar Araia, Yuxin Wang, Changle Jiang, Sean Brown, Ashley Caiola, Brandon Robinson, Jianli Hu   +6 more
doaj   +1 more source

A Century of Synthetic Fertilizer: 1909-2009 [PDF]

, 2009
This year marks a centenary of the synthetic fertilizer industry. German chemists, Fritz Haber and Carl Bosch, in 1909 demonstrated their industrial process for the manufacture of ammonia. The achievement won them accolades including Nobel Prizes.
Paull, John
core  

Crop intensification, land use, and on-farm energy-use efficiency during the worldwide spread of the green revolution [PDF]

, 2018
We analyzed crop production, physical inputs, and land use at the country level to assess technological changes behind the threefold increase in global crop production from 1961 to 2014.
FERNANDEZ, Roberto J., PELLEGRINI, PEDRO
core   +2 more sources

Axial F–Bi–Ov Electron Pump Drives Continuous Reconfiguration of Bi Sites for Efficient Photocatalytic N2 Reduction

Advanced Science, EarlyView.
Axial Fluorine and Light‐Induced Oxygen Vacancies Synergize as an Electron Pump to Lower N2 Activation Energy and Enable Sustained NH3 Synthesis on FBWO. ABSTRACT The electronic structure precision of single‐atom catalysts (SACs) represents a decisive factor limiting advancements in photocatalytic nitrogen reduction (NRR) efficiency.
Xiao Ge, Xinyi Wu, Hao‐tong Li, Xinya Liu, Jie‐jie Chen, Yuan Min, Xiaozhi Wang   +6 more
wiley   +1 more source

Atomic‐Scale Understanding of Selectivity Control in Nitrate Reduction on Cu(100) Under Acidic and Alkaline Conditions

Angewandte Chemie, EarlyView.
A combination of ab initio molecular dynamics simulations and density functional theory calculations clarifies the pH‐dependent origin of the selectivity of nitrate reduction on Cu(100). ABSTRACT We investigate the nitrate reduction reaction (NO3 RR) on the Cu(100) surface using grand‐canonical density functional theory (GC‐DFT) under constant ...
Ebrahim Tayyebi, Kai S. Exner
wiley   +2 more sources