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Synthesis and Characterization of Ni...

Yasar, Aleyna,

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Synthesis and Characterization of NiCo2O4 Nanoparticles Anchored ZnO and TiO2Semiconductors and their Investigation in Electro- and Photochemical Water Splitting = = NiCo2O4 Nanoparcaciklarina Bagli ZnO ve TiO2Yari Iletkenliklerinin Sentezi, Karakterizasyonu ve Elektro- Ve Fotokimyasal Suyun Ayrismasinda Incelenmesi /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Synthesis and Characterization of NiCo2O4 Nanoparticles Anchored ZnO and TiO2Semiconductors and their Investigation in Electro- and Photochemical Water Splitting =/ Aleyna Yasar.
Reminder of title:	NiCo2O4 Nanoparcaciklarina Bagli ZnO ve TiO2Yari Iletkenliklerinin Sentezi, Karakterizasyonu ve Elektro- Ve Fotokimyasal Suyun Ayrismasinda Incelenmesi /
Author:	Yasar, Aleyna,
Description:	1 electronic resource (153 pages)
Notes:	Source: Masters Abstracts International, Volume: 86-04.
Contained By:	Masters Abstracts International86-04.
Subject:	Electrodes. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31656039
ISBN:	9798342370363

Synthesis and Characterization of NiCo2O4 Nanoparticles Anchored ZnO and TiO2Semiconductors and their Investigation in Electro- and Photochemical Water Splitting = = NiCo2O4 Nanoparcaciklarina Bagli ZnO ve TiO2Yari Iletkenliklerinin Sentezi, Karakterizasyonu ve Elektro- Ve Fotokimyasal Suyun Ayrismasinda Incelenmesi /
Yasar, Aleyna,

Synthesis and Characterization of NiCo2O4 Nanoparticles Anchored ZnO and TiO2Semiconductors and their Investigation in Electro- and Photochemical Water Splitting =NiCo2O4 Nanoparcaciklarina Bagli ZnO ve TiO2Yari Iletkenliklerinin Sentezi, Karakterizasyonu ve Elektro- Ve Fotokimyasal Suyun Ayrismasinda Incelenmesi /Aleyna Yasar. - 1 electronic resource (153 pages)

Source: Masters Abstracts International, Volume: 86-04.

The global priority to seek alternative energy sources due to the depletion of fossil fuels has intensified research on sustainable fuel options, with hydrogen (H2) emerging as a promising candidate. Obtaining H2from water through water splitting using metal oxide nanomaterials has gained significant attention for its economic and eco-friendly potential. Therefore, designing and synthesizing novel metal oxide nanomaterials that can perform durably and effectively in this process is crucial.In this study, NiCo2O4/ZnO hybrid nanomaterials were synthesized via the facile hydrothermal method and characterized by various analytical techniques, including XRD, SEM, EDX, TEM, XPS, ICP-OES, and BET. The novel NiCo2O4/ZnO material, when coated onto a glassy carbon electrode (GCE), exhibited notable electrochemical performance towards water oxidation with an onset potential of 1.58 V vs. RHE and an overpotential of 440 mV at 10 mA cm-2 current density, rivaling benchmark RuO2or surpassing the catalysts having similar structures.Furthermore, the oxygen- and hydrogen-generating ability in light-driven water splitting of the hybrid material was evaluated separately by monitoring the amount of evolved gas from water as 420 µmol h-1 g-1 and 250 µmol h-1 g-1, respectively. These results are promising compared to the catalysts having similar structures, and especially H2 evolution activity was found to be 25-fold higher than those of its components pure ZnO (6 µmol h-1 g-1) and NiCo2O4(9 µmol h-1 g-1).This thesis emphasized the significance of the NiCo2O4/ZnO hybrid structure in achieving high catalytic performance, marking a significant advancement in electro- and photocatalytic water splitting applications.

English

ISBN: 9798342370363Subjects--Topical Terms:

629151
Electrodes.

Synthesis and Characterization of NiCo2O4 Nanoparticles Anchored ZnO and TiO2Semiconductors and their Investigation in Electro- and Photochemical Water Splitting = = NiCo2O4 Nanoparcaciklarina Bagli ZnO ve TiO2Yari Iletkenliklerinin Sentezi, Karakterizasyonu ve Elektro- Ve Fotokimyasal Suyun Ayrismasinda Incelenmesi /
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245 1 0 $a Synthesis and Characterization of NiCo2O4 Nanoparticles Anchored ZnO and TiO2Semiconductors and their Investigation in Electro- and Photochemical Water Splitting = $b NiCo2O4 Nanoparcaciklarina Bagli ZnO ve TiO2Yari Iletkenliklerinin Sentezi, Karakterizasyonu ve Elektro- Ve Fotokimyasal Suyun Ayrismasinda Incelenmesi / $c Aleyna Yasar.
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520 $a The global priority to seek alternative energy sources due to the depletion of fossil fuels has intensified research on sustainable fuel options, with hydrogen (H2) emerging as a promising candidate. Obtaining H2from water through water splitting using metal oxide nanomaterials has gained significant attention for its economic and eco-friendly potential. Therefore, designing and synthesizing novel metal oxide nanomaterials that can perform durably and effectively in this process is crucial.In this study, NiCo2O4/ZnO hybrid nanomaterials were synthesized via the facile hydrothermal method and characterized by various analytical techniques, including XRD, SEM, EDX, TEM, XPS, ICP-OES, and BET. The novel NiCo2O4/ZnO material, when coated onto a glassy carbon electrode (GCE), exhibited notable electrochemical performance towards water oxidation with an onset potential of 1.58 V vs. RHE and an overpotential of 440 mV at 10 mA cm-2 current density, rivaling benchmark RuO2or surpassing the catalysts having similar structures.Furthermore, the oxygen- and hydrogen-generating ability in light-driven water splitting of the hybrid material was evaluated separately by monitoring the amount of evolved gas from water as 420 µmol h-1 g-1 and 250 µmol h-1 g-1, respectively. These results are promising compared to the catalysts having similar structures, and especially H2 evolution activity was found to be 25-fold higher than those of its components pure ZnO (6 µmol h-1 g-1) and NiCo2O4(9 µmol h-1 g-1).This thesis emphasized the significance of the NiCo2O4/ZnO hybrid structure in achieving high catalytic performance, marking a significant advancement in electro- and photocatalytic water splitting applications.
520 $a Fosil yakitlarin azalmasi nedeniyle alternatif enerji kaynaklarinin arastirilmasina yonelik kuresel oncelik, surdurulebilir yakit secenekleri uzerine arastirmalari yogunlastirmis ve hidrojen (H2) umut verici bir aday olarak ortaya cikmistir. Metal oksit nanomalzemeler kullanilarak suyun ayristirilmasi yoluyla sudan H2elde edilmesi, ekonomik ve cevre dostu potansiyeli nedeniyle buyuk ilgi gormeye baslamistir. Bu surecte dayanikli ve etkili bir bicimde calisabilen yeni metal oksit nanomalzemelerin tasarlanmasi ve sentezlenmesi onemlidir.Bu calismada, NiCo2O4/ZnO hibrit nanomalzemeler kolay hidrotermal yontemle sentezlenmis ve XRD, SEM, EDX, TEM, XPS, ICP-OES, ve BET gibi cesitli analitik tekniklerle karakterize edilmistir. Bu yeni NiCo2O4/ZnO hibrit nanomalzeme camsi karbon elektrot uzerine kaplandiginda 1.58 V (vs. RHE) baslangic potansiyeli ve 10 mA cm-2 akim yogunlugunda 440 mV asiri potansiyel ile suyun yukseltgenmesi tepkimesinde referans olarak kullanilan RuO2ile kiyaslanabilir ya da benzer yapiya sahip katalizorlerden ustun elektrokimyasal performans sergilemistir.Ayrica, NiCo2O4/ZnO hibrit malzemenin, suyun isikla bolunmesindeki ayri ayri oksijen ve hidrojen uretme yetenegi, sudan olusan gaz miktari izlenerek degerlendirilmis ve sirasiyla 420 µmol h-1 g-1 ve 250 µmol h-1 g-1 H2urettigi gorulmustur.Literaturde benzer yapiya sahip katalizorler icin bildirilenlerle karsilastirildiginda bu sonuclar umut verici olup, ozellikle H2 olusum aktivitesi saf ZnO (6 µmol h-1 g-1) ve NiCo2O4(9 µmol h-1 g-1) bilesenlerine gore 25 kat daha yuksektir.Bu tez suyun elektrokimyasal ve isikla bolunmesinde onemli bir ilerlemeye isaret ederek yuksek katalitik performans elde etmede NiCo2O4/ZnO hibrit yapisinin onemini vurgulamaktadir.
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650 4 $a Nanomaterials. $3 3558221
650 4 $a Metal oxides. $3 3681693
650 4 $a Environmental impact. $3 3564810
650 4 $a Voltammetry. $3 3681694
650 4 $a Energy resources. $3 3561090
650 4 $a Photocatalysis. $3 737792
650 4 $a Climate change. $2 bicssc $3 2079509
650 4 $a Sun. $3 686108
650 4 $a Scanning electron microscopy. $3 551366
650 4 $a Nanowires. $3 576100
650 4 $a Gases. $3 559387
650 4 $a Oxidation. $3 714629
650 4 $a Fossil fuels. $3 701525
650 4 $a Carbon. $3 604057
650 4 $a Cobalt. $3 3682549
650 4 $a Alternative energy sources. $3 3561089
650 4 $a Alternative energy. $3 3436775
650 4 $a Analytical chemistry. $3 3168300
650 4 $a Nanotechnology. $3 526235
650 4 $a Physical chemistry. $3 1981412
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710 2 $a Middle East Technical University (Turkey). $b Department of Chemistry. $e degree granting institution. $3 3820765
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