Results 111 to 120 of about 1,195,933 (307)

Nucleation‐Controlled Reconstruction of CuOx for Selective CO2 Electroreduction

Advanced Functional Materials, EarlyView.
The ratio of oxygen vacancies (Ov) and exposed Cu2O (111)/(200) of CuOx precatalyst is modulated by nucleation control of Cu(OH)2 precursor. Low Ov ratio and high ratio of Cu2O (111)/(200) in slow‐nucleated CuOx reconstructs to high‐coordinated oxide‐derived copper (OD‐Cu) during electrochemical CO2 reduction reaction (CO2RR) and exhibits enhanced ...
Ying Ying Ch'ng, Zhipeng Ma, Ming Zhang, Shujie Zhou, Varun Kundi, Priyank Vijaya Kumar, Wenyu Zhong, Yuwei Yang, Jitraporn Vongsvivut, Qinfen Gu, Xiaoxuan Luo, Lixue Jiang, Rahman Daiyan, Zhaojun Han, Rose Amal   +14 more
wiley   +1 more source

Refurbishment of one-person regenerative air revitalization system [PDF]

Regenerative processes for the revitalization of spacecraft atmospheres and reclamation of waste waters are essential for making long-term manned space missions a reality.
Powell, Ferolyn T.
core   +1 more source

Multibit Ferroelectric HfZrO Memcapacitor for Non‐Volatile Analogue Memory and Reconfigurable Electronics

Advanced Functional Materials, EarlyView.
Ferroelectric memcapacitors enable non‐volatile, voltage‐programmable capacitance tuning for adaptive electronics. A TiN/HfZrO/TiN device stack demonstrates more than eight stable capacitance states within a 24 pF memory window in compact 60 ×$\times$ 60 μm2$\umu{\rm m}^{2}$ devices at low operating voltages.
Deepika Yadav, Spyros Stathopoulos, Patrick Foster, Andreas Tsiamis, Mohamed Awadein, Hannah Levene, Themis Prodromakis   +6 more
wiley   +1 more source

Temperature VS Carbon Dioxide [PDF]

In this activity, students examine the relationship between carbon dioxide levels and global temperature change by studying a graph of these two variables.

core  

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Near-Unity Nitrate to Ammonia conversion via reactant enrichment at the solid-liquid interface

Nature Communications
Electroreduction of nitrate (NO3 ‒) to ammonia (NH3) is a promising approach for addressing energy challenges. However, the activity is limited by NO3 ‒ mass transfer, particularly at reduction potential, where an abundance of electrons on the cathode ...
Wanru Liao, Jun Wang, Yao Tan, Xin Zi, Changxu Liu, Qiyou Wang, Li Zhu, Cheng-Wei Kao, Ting-Shan Chan, Hongmei Li, Yali Zhang, Kang Liu, Chao Cai, Junwei Fu, Beidou Xi, Emiliano Cortés, Liyuan Chai, Min Liu   +17 more
doaj   +1 more source

Monitoring and control of atmosphere in a closed environment [PDF]

Applications requiring new technologies for atmosphere monitoring and control in the closed environment and their principal functions aboard the Space Station Freedom are described.
Humphries, R., Perry, J.
core   +1 more source

Graphene Nanosheet‐Based Mixed Proton‐Electron Conducting Membranes for Efficient Hydrogen Purification

Advanced Functional Materials, EarlyView.
A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He, Fanmengjing Wang, Dehua Dong, Yuan Kang, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Douglas R. MacFarlane, Huanting Wang   +8 more
wiley   +1 more source

Sustainable conversion of alkaline nitrate to ammonia at activities greater than 2 A cm−2

Nature Communications
Nitrate (NO3 ‒) pollution poses significant threats to water quality and global nitrogen cycles. Alkaline electrocatalytic NO3 ‒ reduction reaction (NO3RR) emerges as an attractive route for enabling NO3 ‒ removal and sustainable ammonia (NH3) synthesis.
Wanru Liao, Jun Wang, Ganghai Ni, Kang Liu, Changxu Liu, Shanyong Chen, Qiyou Wang, Yingkang Chen, Tao Luo, Xiqing Wang, Yanqiu Wang, Wenzhang Li, Ting-Shan Chan, Chao Ma, Hongmei Li, Ying Liang, Weizhen Liu, Junwei Fu, Beidou Xi, Min Liu   +19 more
doaj   +1 more source

Carbon Dioxide [PDF]

Proceedings of the Royal Society of Medicine, 1955
openaire   +2 more sources