Severity: Warning
Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 176
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 1034
Function: getPubMedXML
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3152
Function: GetPubMedArticleOutput_2016
File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
A sonication-assisted liquid-phase preparation technique is developed to prepare boron quantum dots (BQDs) with a lateral size of 3 nm in a solution of NMP and NBA; it shows a direct bandgap semiconductor with a bandgap of 3 eV and a specific capacitance of 41 F g . A BQDs(10)-Ti C T membrane electrode with excellent capacitance and high flexibility is prepared by using Ti C T nanosheets (NSs) as assembled units and BQDs as pillar; it gives a specific capacitance of 524 F g at 1 A g in 6 m H SO electrolyte, a high capacity retention of 75%, and a minimum relaxation time of 0.51 s. An all-solid-state BQDs(10)-Ti C T flexibility supercapacitor is assembled by using a BQDs(10)-Ti C T membrane as electrodes and PVA/H SO hydrogel as electrolyte; it not only shows an area specific capacitance of 552 mF cm at 1.25 mA cm , a retention rate of 75%, a capacity retention of 93% after 5000 cycles, and an energy density of 40.4 Wh cm at a volume power density of 416 W cm , but also provides superior flexibility and can be bent to different degrees, showing that the assembled BQDs(10)-Ti C T membrane electrode and BQDs(10)-Ti C T flexible supercapacitor display broad application prospects in field of portable/wearable electronic devices.
Download full-text PDF |
Source |
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http://dx.doi.org/10.1002/smll.202306562 | DOI Listing |
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