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|a 10.1002/adma.202202294
|2 doi
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|a pubmed24n1137.xml
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|a (DE-627)NLM341314722
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|a (NLM)35609013
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Mondal, Soumi
|e verfasserin
|4 aut
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|a Morphology-Tuned Pt3 Ge Accelerates Water Dissociation to Industrial-Standard Hydrogen Production over a wide pH Range
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 27.07.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a The discovery of novel materials for industrial-standard hydrogen production is the present need considering the global energy infrastructure. A novel electrocatalyst, Pt3 Ge, which is engineered with a desired crystallographic facet (202), accelerates hydrogen production by water electrolysis, and records industrially desired operational stability compared to the commercial catalyst platinum is introduced. Pt3 Ge-(202) exhibits low overpotential of 21.7 mV (24.6 mV for Pt/C) and 92 mV for 10 and 200 mA cm-2 current density, respectively in 0.5 m H2 SO4 . It also exhibits remarkable stability of 15 000 accelerated degradation tests cycles (5000 for Pt/C) and exceptional durability of 500 h (10 mA cm-2 ) in acidic media. Pt3 Ge-(202) also displays low overpotential of 96 mV for 10 mA cm-2 current density in the alkaline medium, rationalizing its hydrogen production ability over a wide pH range required commercial operations. Long-term durability (>75 h in alkaline media) with the industrial level current density (>500 mA cm-2 ) has been demonstrated by utilizing the electrochemical flow reactor. The driving force behind this stupendous performance of Pt3 Ge-(202) has been envisaged by mapping the reaction mechanism, active sites, and charge-transfer kinetics via controlled electrochemical experiments, ex situ X-ray photoelectron spectroscopy, in situ infrared spectroscopy, and in situ X-ray absorption spectroscopy further corroborated by first principles calculations
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|a Journal Article
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|a electrochemistry
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|a hydrogen production
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|a intermetallics
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4 |
|a water electrolysis
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|a Sarkar, Shreya
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bagchi, Debabrata
|e verfasserin
|4 aut
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1 |
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|a Das, Tisita
|e verfasserin
|4 aut
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|a Das, Risov
|e verfasserin
|4 aut
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|a Singh, Ashutosh Kumar
|e verfasserin
|4 aut
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|a Prasanna, Ponnappa Kechanda
|e verfasserin
|4 aut
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| 700 |
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|a Vinod, C P
|e verfasserin
|4 aut
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|a Chakraborty, Sudip
|e verfasserin
|4 aut
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|a Peter, Sebastian C
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 30 vom: 08. Juli, Seite e2202294
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:30
|g day:08
|g month:07
|g pages:e2202294
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|u http://dx.doi.org/10.1002/adma.202202294
|3 Volltext
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