Results 1 to 10 of about 69,929 (255)

The phenomenon of "dead" metal in heterogeneous catalysis: opportunities for increasing the efficiency of carbon-supported metal catalysts. [PDF]

open access: yesChem Sci, 2023
The key factors contributing to the formation of “dead” metal – the fraction of metal in supported catalysts that remains inaccessible to reactants – are examined. Strategies to minimize the formation of “dead” metal are analyzed.
Mironenko RM, Eremin DB, Ananikov VP.
europepmc   +3 more sources

Study on the Formation Mechanism of Cutting Dead Metal Zone for Turning AISI4340 with Different Chamfering Tools [PDF]

open access: yesMicromachines, 2022
Tools with chamfered edges are often used in high speed machining of hard materials because they provide compelling cutting toughness and reduced tool wear. Chamfered tools are also responsible for the dead metal zone (DMZ).
Shujing Wu   +3 more
doaj   +2 more sources

Reactivating dead sodium for durable and high-rate anode-free sodium batteries [PDF]

open access: yesNature Communications
Reactivating dead alkali metal is an effective strategy for extending the lifespan of alkali metal batteries. Until now, relevant works are mainly concentrated in lithium batteries, however, the reactivation of dead Na remains a mystery.
Weihao Wang   +14 more
doaj   +2 more sources

Study of shear-plastic slip mechanism based on TC4 titanium alloy. [PDF]

open access: yesPLoS ONE
The stagnation point and dead metal zone in the cutting process directly or indirectly affect the chip formation and stress distribution, while the stress distribution in the machining process determines the plastic slip direction of the material. Aiming
Bo Hu   +5 more
doaj   +2 more sources

Simultaneous heavy metal removal mechanism by dead macrophytes

open access: yesChemosphere, 2006
The use of dead, dried aquatic plants, for water removal of metals derived from industrial activities as a simple biosorbent material has been increasing in the last years. The mechanism of simultaneous metal removal (Cd2+, Ni2+, Cu2+, Zn2+ and Pb2+) by 3 macrophytes biomass (Spirodela intermedia, Lemna minor and Pistia stratiotes) was investigated. L.
Andrea B Saralegui   +1 more
exaly   +4 more sources

The dead lithium formation under mechano-electrochemical coupling in lithium metal batteries

open access: yesFundamental Research
Lithium metal is one of the most promising anode materials for next-generation high-energy-density rechargeable batteries. A fundamental mechanism understanding of the dead lithium formation under the interplay of electrochemistry and mechanics in ...
Xin Shen   +9 more
doaj   +3 more sources

Degradation of lithium metal batteries due to dead lithium accumulation under ultrasound

open access: yesUltrasonics Sonochemistry
Lithium metal batteries (LMBs) have emerged as promising alternatives to conventional lithium-ion batteries (LIBs) due to their superior capacity and energy density.
Byeonggi Kim   +3 more
doaj   +3 more sources

Comparative Analysis of Hexavalent Chromium Biosorption Efficiency Using Dead and Live Aspergillus nomius Biomass

open access: yesJournal of Tropical Forestry and Environment, 2022
Daily industrial activities especially in developing countries produce and discharge wastes containing heavy metals into the water resources making them polluted, threatening human health and the ecosystem.
S. Guha, S. Debnath, S. Gayen
doaj   +1 more source

Understanding the failure process of sulfide-based all-solid-state lithium batteries via operando nuclear magnetic resonance spectroscopy

open access: yesNature Communications, 2023
All-solid-state lithium batteries performance is affected by the solid electrolyte interphase (SEI) and electrically disconnected (“dead”) Li metal. Here, via operando NMR measurements, the authors quantify the Li metal in the SEI and “dead” regions ...
Ziteng Liang   +14 more
doaj   +1 more source

Comparative Utilization of Dead and Live Fungal Biomass for the Removal of Heavy Metal: A Concise Review

open access: yesThe Scientific World Journal, 2021
Human and industrial activities produce and discharge wastes containing heavy metals into the water resources making them polluted, threatening human health and the ecosystem.
Abate Ayele   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy