Electrochemical hydrogen evolution reaction (HER) at single graphene sheets has been investigated {widely|extensively|broadly} either in its pristine {form|type|kind} or {after|following|right after|soon after|immediately after|just after} chemical modification. {One|1|A single|One particular} {important|essential|crucial|critical|significant|vital} challenge {is the|will be the|may be the|would be the|could be the|is definitely the} long-term stability of single graphene sheets on Si/SiO2 substrates {under|below|beneath} HER. {Previous|Prior|Earlier|Preceding} reports have {found|discovered|identified|located} that {due to|because of|as a result of|on account of|resulting from|as a consequence of} {stress|tension|anxiety|pressure|strain} {developing|creating|building|establishing} {under|below|beneath} gas evolution, the sheets {tend|have a tendency} to break apart, {with a|having a|using a} {very|extremely|really|quite|incredibly|pretty} low lifetime {limited|restricted} to just {a few|a couple of|several|a number of|some|a handful of} cycles of HER. {Here|Right here}, we show {through|via|by means of|by way of} {appropriate|suitable|proper|acceptable} electrode preparation that {it is|it’s|it really is|it truly is|it can be|it is actually} {possible|feasible|achievable|attainable|doable|probable} {to achieve|to attain} {highly|extremely|very|hugely} {durable|tough|sturdy} single graphene electrodes on insulating substrates, which can survive {several|a number of|numerous|many|various|quite a few} {hundreds of|a huge selection of|numerous} HER cycles with {virtually|practically} no {damage|harm} {to the|towards the|for the} sp2-carbon framework. {Through|Via|By means of|By way of} systematic investigations {including|such as|which includes|like} atomic force microscopy, Raman spectroscopy and electroanalysis, we show that even {after|following|right after|soon after|immediately after|just after} {so many|a lot of|numerous|countless|a great number of|lots of} cycles, the sheet is physically intact {and the|and also the|as well as the|along with the|plus the} electron transfer capability {of the|from the|in the|on the|with the|of your} electrodes {remain|stay} unaffected. This {extremely|very|incredibly|really|particularly|exceptionally} {high|higher} stability of a single atomic sheet of carbon, when combined with {appropriate|suitable|proper|acceptable} chemical modification {strategies|methods|techniques|approaches|tactics}, will pave way for the realization of novel 2D electrocatalysts. 1086423-62-2 supplier BuyMethyl 2-formyl-6-nitrobenzoate PMID:23937941
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