It is known that carbon layer intercalation can reduce and even avoid the breakdown of matrix material induced by expansion in hydrogen storage processes.Herein,we provide a general strategy to synthesize a uniform co...It is known that carbon layer intercalation can reduce and even avoid the breakdown of matrix material induced by expansion in hydrogen storage processes.Herein,we provide a general strategy to synthesize a uniform cobalt/carbon/cobalt sandwich-like nanosheet stack(denoted as Co/C/Co),which is difficult to achieve using conventional one-pot synthetic methods.展开更多
Developing earth-abundant,highly active,and durable electrocatalysts for the oxygen evolution reaction(OER)is of crucial importance for renewable energy conversion processes.Herein,we fabricated novel flower-like NiFe...Developing earth-abundant,highly active,and durable electrocatalysts for the oxygen evolution reaction(OER)is of crucial importance for renewable energy conversion processes.Herein,we fabricated novel flower-like NiFe-layered double hydroxide nanostructures with electron-withdrawing anion intercalation and surface sulfurization via a two-step hydrothermal treatment.Benefiting from the dual-modified electronic structure of the surface active sites of NiFe-LDHs,the as-obtained catalyst showed excellent electrocatalytic activity for the OER,only demanding a low overpotential of 259 mV to achieve 10 mA cm^(-2) in 1.0 M KOH.展开更多
基金the Program for NCET in University(NCET-13-0754)the Natural Science Foundation of China(Grant No.51272050 and 51072038)+4 种基金the fundamental research funds for the central universities(No.HEUCF2016)Harbin Sci-tech innovation foundation(RC2012XK017012)Harbin Youth Fund(RC2014QN017004)Youth Fund of Heilongjiang Province(QC2014C006)the Open Project Program of Key Laboratory for Photonic and Electric Bandgap Materials,Ministry of Education,Harbin Normal University(PEBM201301)for the financial support of this research.
文摘It is known that carbon layer intercalation can reduce and even avoid the breakdown of matrix material induced by expansion in hydrogen storage processes.Herein,we provide a general strategy to synthesize a uniform cobalt/carbon/cobalt sandwich-like nanosheet stack(denoted as Co/C/Co),which is difficult to achieve using conventional one-pot synthetic methods.
基金support from the One Thousand Young Talents Program under the Recruitment Program of Global Experts,the National Natural Science Foundation of China(NSFC)(21901246,21905278 and 21771179)the Natural Science Foundation of Fujian Province(2019J05158 and 2019J01133).
文摘Developing earth-abundant,highly active,and durable electrocatalysts for the oxygen evolution reaction(OER)is of crucial importance for renewable energy conversion processes.Herein,we fabricated novel flower-like NiFe-layered double hydroxide nanostructures with electron-withdrawing anion intercalation and surface sulfurization via a two-step hydrothermal treatment.Benefiting from the dual-modified electronic structure of the surface active sites of NiFe-LDHs,the as-obtained catalyst showed excellent electrocatalytic activity for the OER,only demanding a low overpotential of 259 mV to achieve 10 mA cm^(-2) in 1.0 M KOH.
