Results 291 to 300 of about 610,465 (350)

Manipulating Surface Chemistry on the Microarchitecture of Coal‐Based Hard Carbon for Improved Sodium Storage

Advanced Science, EarlyView.
This study utilizes surface chemistry engineering to enhance coal‐based carbon materials for sodium storage. By introducing oxygen‐containing functional groups (OFGs) via pre‐oxidation, the researchers found that carboxyl groups delay decarboxylation during pyrolysis, enabling extended intermolecular rearrangement up to 600 °C while suppressing soft ...
Wenhai Zhang, Ruizhen Song, Hong Meng, Yakun Tang, Yue Zhang, Lang Liu, Ping Han, Limin Deng, Yuliang Cao   +8 more
wiley   +1 more source

Water Electrolysis Beyond Platinum: Carbon Nitride Materials for Electrochemical Hydrogen Evolution

Advanced Science, EarlyView.
Porous long carbon nitride nanoscrolls can be activated by subpotential reduction to become effective electrocatalyts for electrochemical hydrogen evolution (HER) and storage, with a performance superior to Platinum. The optimized system displays an overpotential close to commercial Pt/C but provides a superior current density (1.3 A/cm2), turnover ...
Kamel Eid, Markus Antonietti
wiley   +1 more source

Exploration of Quasi‐Direct Band Edge in a Multilayer Ferroelectric Semiconductor for Applications in Van Der Waals Stacked Heterojunction Solar Cell and Photocatalytic Devices

Advanced Science, EarlyView.
Multilayered AgBiP2Se6 has been systematically characterized to be a quasi‐direct semiconductor using theoretical calculations and optical experiments. It possesses an indirect bandgap of 1.46 eV and a direct gap of 1.535 eV for simultaneously absorbing the NIR to visible‐light photons. In combination with a p‐type Ga0.5In0.5Se, a high efficiency p‐Ga0.
Anna Milatul Ummah, Yen‐Chang Su, Yu‐Hung Peng, You‐Xun Xu, Ching‐Hwa Ho   +4 more
wiley   +1 more source

Safety, health and environmental annual report 2010. Joint Research Centre Institute for Energy [PDF]

, 2011
Eriksen, B., Timke, T., van Lierop, K.
core  

Bandgap‐Dependent Doping of Semiconducting Carbon Nanotube Networks by Proton‐Coupled Electron Transfer for Stable Thermoelectrics

Advanced Electronic Materials, EarlyView.
Proton‐coupled electron transfer doping with benzoquinone is applied to p‐dope dense films of semiconducting single‐walled carbon nanotubes. The doping efficiency depends on the pH of the doping solution and the bandgap of the nanotubes. The highest conductivities and power factors are achieved for small‐bandgap nanotubes, remaining stable for over 120
Angus Hawkey, Xabier Rodríguez‐Martínez, Sebastian Lindenthal, Moritz C. F. Jansen, Reverant Crispin, Jana Zaumseil   +5 more
wiley   +1 more source

A service evaluation of physiotherapy practice within one scottish intensive care unit [PDF]

, 2011
Salisbury, Lisa, Stevenson, Lorna
core  

Toward Complete CO2 Electroconversion: Status, Challenges, and Perspectives

Advanced Energy Materials, EarlyView.
Electrocatalytic CO2 reduction and CO2 batteries face challenges in achieving complete CO2 conversion with high conversion rates and Faradaic efficiency simultaneously. Existing systems compromise one for the other with incomplete CO2 conversion and inefficiencies, hindering practical applications. This perspective highlights state‐of‐the‐art progress,
Changfan Xu, Ping Hong, Yulian Dong, Marc Robert, Guosheng Shao, Yong Lei   +5 more
wiley   +1 more source

Enhancing Photocatalytic CO2 Reduction via Robust Polymer Fragment–Single‐Walled Carbon Nanotube Heterojunction Engineering

Advanced Energy Materials, EarlyView.
This work presents a polymer fragmentation procedure to construct SWNT/CNF heterojunction. The SWNT/CNF hybrid exhibits exceptional CO2 photoreduction performance with selective CH4 production. The enhanced activity originates from enhanced CO2 adsorption, optimized dynamics, and robust interfacial coupling between SWNT and CNF, which establish Ohmic ...
Xiaolong Zhao, Ying Tao, Mingyu Xia, Kee Wah Leong, Yingguang Zhang, Shijing Luo, Weicheng Chen, Mahmoud Samy, Xiaoping Yi, Wending Pan, Guisheng Li, Dennis Y. C. Leung   +11 more
wiley   +1 more source

Use of Untraditional Methods of Strengthening of Health [PDF]

, 2014
Panov, S.F., Schuravsky, Viktor, Trutovsky, G.J.   +2 more
core  

Zero‐Valent Iron Nanoparticles Supported on Si/N Codoped Carbon Materials: From Biomass to Oxygen Reduction Electrocatalysts and Supercapacitors

Advanced Energy and Sustainability Research, EarlyView.
Zero‐valent iron nanoparticles on Si/N codoped carbon support are prepared from hydrothermal carbonization and pyrolysis of biomass, silica, and iron salt. The Fe nanoparticles are evenly distributed on the support and encapsulated in graphitic or iron oxide shells.
Lilian Moumaneix, Oktay Safarov, Tanja Kallio   +2 more
wiley   +1 more source