Results 11 to 20 of about 20,982 (319)

Intratumoral synthesis of nano-metalchelate for tumor catalytic therapy by ligand field-enhanced coordination

open access: yesNature Communications, 2021
Iron gall chelate (GA-Fe) can promote oxygen reduction reactions and reactive oxygen species generation which causes chemical corrosion. Here, the authors, inspired by this phenomenon, develop a composite nanomedicine for tumour therapy constructed by ...
Bowen Yang   +8 more
doaj   +1 more source

Fabrication and mechanical behavior of 2D-Cf/TaxHf1−xC–SiC composites by a low-temperature and highly-efficient route

open access: yesJournal of Advanced Ceramics, 2023
Cf/TaxHf1−xC–SiC composites are ideal thermal structural materials for service under extreme conditions of hypersonic vehicles. However, how to synthesize TaxHf1-xC powders and efficiently fabricate Cf/TaxHf1-xC–SiC composites still faces some challenges.
Xuegang Zou   +8 more
doaj   +1 more source

Dual fluorination of polymer electrolyte and conversion-type cathode for high-capacity all-solid-state lithium metal batteries

open access: yesNature Communications, 2022
The practical use of all-solid-state batteries is hindered by inadequate cycling performance. Here, the authors propose a fluorination strategy for the positive electrode and polymeric electrolyte to develop all-solid-state Li||FeF3 pouch cells with high
Jiulin Hu   +6 more
doaj   +1 more source

Thermal-inert and ohmic-contact interface for high performance half-Heusler based thermoelectric generator

open access: yesNature Communications, 2022
Unsatisfied electrode bonding in half-Heusler devices limits their practical service at high temperatures. Here, the authors develop a direct bonding interface to ideal ohmic contact and thermally inert and ohmic contact, leading to high deficiency.
Ruiheng Liu   +10 more
doaj   +1 more source

Electrode interface optimization advances conversion efficiency and stability of thermoelectric devices

open access: yesNature Communications, 2020
Long-term service stability of thermoelectric devices is one of the major obstacles for their application. Here, the authors combine interfacial reaction energy and Sb migration activation energy barrier as a criterion to determine the interfacial ...
Jing Chu   +10 more
doaj   +1 more source

Microstructure of ceramic foams [PDF]

open access: yesJournal of the European Ceramic Society, 2000
This paper describes the preparation of ceramic foams by expansion of a ceramic suspension based on a polyurethane system. The microstructure and degree of reticulation of the foamed ceramic were examined and analysed with the help of a simple geometrical model.
H.X. Peng   +3 more
openaire   +2 more sources

Active site recovery and N-N bond breakage during hydrazine oxidation boosting the electrochemical hydrogen production

open access: yesNature Communications, 2023
Substituting hydrazine oxidation reaction for oxygen evolution reaction can result in greatly reduced energy consumption for hydrogen production, however, the mechanism and the electrochemical utilization rate of hydrazine oxidation reaction remain ...
Libo Zhu   +10 more
doaj   +1 more source

LMO Ceramics Microstructure

open access: yesArchives of Metallurgy and Materials, 2016
Abstract The aim of this work was to characterize the microstructure of LMO type ceramics. The ceramics obtained by the free sintering at two temperatures 1473 K and 1573 K and two sintering times 6 and 12 h was the test material. One series was also obtained by the hot pressing method for a comparison.
Bruś, Beata, Zarycka, Aldona
openaire   +4 more sources

Modulation of the morphotropic phase boundary for high-performance ductile thermoelectric materials

open access: yesNature Communications, 2023
The flexible thermoelectric technique, which can convert heat from the human body to electricity via the Seebeck effect, is expected to provide a peerless solution for the power supply of wearables.
Jiasheng Liang   +8 more
doaj   +1 more source

Residual stress variation in SiCf/SiC composite during heat treatment and its effects on mechanical behavior

open access: yesJournal of Advanced Ceramics, 2020
Residual stress originated from thermal expansion mismatch determines the mechanical properties of ceramic matrix composites (CMCs). Here, continuous SiC fiber reinforced SiC matrix (SiCf/SiC) composites were fabricated by nano-infiltration and transient
Xiaowu Chen   +8 more
doaj   +1 more source

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