Results 71 to 80 of about 473,404 (341)

Transport Matters: The Critical Role of the Hydrogen Evolution Reaction (HER) in Accelerating Electrochemical Nitrate to Ammonia Conversion

Advanced Science, EarlyView.
A porous cobalt‐based metal‐oxide foam catalyst is synthesized using the DHBT technique, followed by calcination. It demonstrates exceptional activity for e‐NO3RR, reaching near‐unity ammonia selectivity at low overpotentials. Dynamic surface area changes due to NO3‐ depletion are mitigated by “self‐convection” during hydrogen evolution.
Nandu Ashtaman‐Pillai Syamaladevi, Abhijit Dutta, Alain Rieder, Xin Yu, Hridya Nedumkulam, Jakub Drnec, Zsolt Szakály, Soma Vesztergom, Rebecca Katharina Pittkowski, Peter Broekmann   +9 more
wiley   +1 more source

In Situ Structural Evolution and Activity Descriptor of Atomically Dispersed Catalysts During Nitrate Electroreduction

Advanced Science, EarlyView.
The in situ evolution of single‐atom catalysts to metallic nanoclusters during nitrate electroreduction is demonstrated. A direct correlation between the OH binding energy on the metallic clusters and ammonia production rate is established as a key activity descriptor, explaining the superior performance of Ni and Co catalysts.
Daniel S. Braga, Angus Pedersen, Mohd Riyaz, Jesús Barrio, Alexander Bagger, Itamar T. Neckel, Thiago M. Mariano, Manuel E. G. Winkler, Ifan E. L. Stephens, Maria‐Magdalena Titirici, Raphael Nagao   +10 more
wiley   +1 more source

Design optimization of groundwater circulation well based on numerical simulation and machine learning

Scientific Reports
The optimal design of groundwater circulation wells (GCWs) is challenging. The key to purifying groundwater using this technique is its proficiency and productivity.
Zhang Fang, Hao Ke, Yanling Ma, Siyuan Zhao, Rui Zhou, Zhe Ma, Zhiguo Liu   +6 more
doaj   +1 more source

Evaluation of the performance of a hydraulic barrier by the Null space Monte Carlo method

Acque Sotterranee, 2019
A gasoline leak caused the contamination of a shallow alluvial aquifer in an urbanized area in Northern Italy. A rapid intervention was conceived to stop the spreading of contamination: a hydraulic barrier has been placed downstream of the source to ...
Giovanni Formentin, Jacopo Terrenghi, Mariangela Vitiello, Alberto Francioli   +3 more
doaj   +1 more source

Novel Role of Gut‐Derived Roseburia Intestinalis in Safeguarding Intestinal Barrier Integrity and Microenvironment Homeostasis During Arsenic Exposure

Advanced Science, EarlyView.
Arsenic exposure disrupts intestinal barriers and gut microenvironment. Fecal microbiota transplantation (FMT) alleviates arsenic‐induced damage, with gut‐derived Roseburia intestinalis (R.i) identified as a key protective strain. R.i administration counters arsenic toxicity through immunomodulatory pathways and metabolites.
Lixiao Zhou, Chunsong Wang, Jieying Gao, Xu Wu, Geng Li, Xuejun Jiang, Yinyin Xia, Jun Zhang, Bo Lv, Feng Zhao, Hongyang Zhang, Huifeng Pi, Jingfu Qiu, Shangcheng Xu, Zhen Zou, Chengzhi Chen   +15 more
wiley   +1 more source

Vacancy Engineered Zero‐Valent Iron Steer Hydrogen Spillover toward Per‐ and Polychlorinated Organics Rapid Complete Dechlorination

Advanced Science, EarlyView.
Zero‐valent iron with a vacancy‐rich carbon shell and lattice Cu doping in Fe0 cores generates a dechlorination mechanism combining enhanced electron transfer and modulated H* spillover, which significantly lowers the energy barrier for dechlorinating low‐chlorinated intermediates, accelerates C─Cl bond dissociation, and then delivers breakthrough ...
Zimin Yan, Bin Wu, Zhiling Li, Tianyi Huang, Di Cao, Yunxia Zu, Shih‐Hsin Ho, Aijie Wang   +7 more
wiley   +1 more source

Moroccan Groundwater Resources and Evolution with Global Climate Changes

Géosciences, 2020
In semi-arid areas, many ecosystems and activities depend essentially on water availability. In Morocco, the increase of water demands combined to climate change induced decrease of precipitation put a lot of pressure on groundwater.
Mohammed Hssaisoune, L. Bouchaou, A. Sifeddine, I. Bouimetarhan, A. Chehbouni   +4 more
semanticscholar   +1 more source

Electronic‐Structure‐Guided Screening of Piperazine Derivatives: Achieving Efficient CO2 Capture with High Cyclic Capacity and Low Energy Consumption

Advanced Science, EarlyView.
A density functional theory (DFT)‐based framework is proposed to predict CO2 capture performance of piperazine derivatives. 2,6‐dimethylpiperazine (26DMPZ) is identified as a promising candidate: CO2‐induced precipitation in water eliminates the need for organic solvents; the low‐solubility, unstable dicarbamate enhances CO2 capture efficiency and ...
Feng Xie, Xuehua Shen, Han Lin, Junyang Lu, Feng Yan, Zuotai Zhang   +5 more
wiley   +1 more source

Unprecedented Selectivity for Arsenic(III) in a Dimercaptosuccinic Acid‐Based Zr‐MOF: The Role of Dangling Ligands

Angewandte Chemie, EarlyView.
Highly defective DMSA‐based zirconium metal–organic framework (Zr‐DMSA‐MOF) removes arsenic from water with higher selectivity over phosphate than conventional Zr‐MOFs. X‐ray absorption spectroscopy, pair distribution function analysis, and solid‐state NMR reveal that, unlike other Zr‐based MOFs where arsenic binds to the clusters, the flexible ...
Timo M. O. Felder, Till Schertenleib, Beatriz Mouriño, Dragos Stoian, Nazanin Taheri, Laura Piveteau, Wei Shi, Emad Oveisi, Wendy L. Queen   +8 more
wiley   +2 more sources

Electronic Nanomaterials for Plants: A Review on Current Advances and Future Prospects

Advanced Electronic Materials, EarlyView.
Global food security faces mounting challenges from climate change and rapid population growth. This review highlights the pivotal role of electronic nanomaterials–including metals, metal oxides, and carbon‐based structures–in enhancing plant photosynthesis, nutrient uptake, and stress resilience. Furthermore, it explores how emerging platforms such as
Ciro Allará, Giuseppe Ciccone, Manuela Ciocca, Sahira Vasquez, Pietro Ibba, Mauro Maver, Tanja Mimmo, Paolo Lugli, Luisa Petti   +8 more
wiley   +1 more source