![]() The ex situ XRD patterns reveal the reverse phase transformation between Cu 6Sn 5 and Li 2CuSn. After 100 cycles, the anode maintains a stable capacity higher than 200 mA h g −1 for at least 350 cycles, with outstanding Coulombic efficiency. The anode shows an initial discharge capacity as high as 1200 mA h g −1, and it remains a capacity of higher than 600 mA h g −1 for the initial five cycles at 0.1 A g −1. The as-dealloyed np-Cu 6Sn 5 has an ultrafine ligament size of 40 nm and a high BET-specific area of 15.9 m 2 g −1. Herein, the nanoporous (np) Cu 6Sn 5 alloy and Cu 6Sn 5/Sn composite were applied as a lithium-ion battery anode. The volume expansion during Li ion insertion/extraction remains an obstacle for the application of Sn-based anode in lithium ion-batteries. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them. PDF is the official format for papers published in both, html and pdf forms.You may sign up for e-mail alerts to receive table of contents of newly released issues.Issues are regarded as officially published after their release is announced to the table of contents alert mailing list.The small, yet significant modification of the molecular structure gives rise to ceramics with different nanodomain structures and properties. ![]() The difference between these two polymers is linked to the existence of direct Si–C bonding in the first precursor and the absence of any Si–C bonds in the second precursor, where only Si–O–C bonding types are present. The precursors developed by an aqueous sol–gel method both contain one phenyl substituent per silicon atom as an exclusive source for carbon. Herein, we present a simple and effective method for access to polymer-derived silicon oxycarbide ceramics with or without mixed bonding in their structure. ![]()
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