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Design and Fabrication of Cds@Nico-Ldh Combined Electrocatalyst Coating By Adjusting Electronic Structure and Interface Engineering of Layered Double Hydroxide
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DOR
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20.1001.2.0021079099.1400.8.1.34.4
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نویسنده
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Rasouli S.
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منبع
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كنگره بين المللي رنگ و پوشش - 1400 - دوره : 8 - کنگره بین المللی رنگ و پوشش - کد همایش: 00210-79099 - صفحه:1 -1
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چکیده
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It is eminent in many processes of renewable energy conversion to efficient explore inexpensive electrocatalysts for both oxygen evolution reaction (oer) and hydrogen evolution reaction (her). the present paper is a report on a convenient approach to the synthesis of a very efficient hybrid electrocatalyst, consisting of ni-co layered double hydroxide as the shell and cds as the core, hence cds@nico-ldh. this electrode has a large specific surface area that allows fast transference of electrons and exhibits long-term stability. we fabricated 3d cds, cds@ni1.5co0.5-ldh, cds@ni1.33co0.67-ldh, and cds@ni1.67co0.33-ldh electrodes on a nickel foam using synthetic electrodeposition. after electrochemical tests, cds@ni1.5co0.5-ldh exhibited the best her performance via producing current densities of 20 and 100 ma cm-2 at overpotentials of -135 and -189 mv, respectively. further, it showed the best oer catalytic activity by generating current densities of 20 and 100 ma cm-2 at overpotentials of 144 and 206 mv, in that order.
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کلیدواژه
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Layered Double Hydroxide (Ldh) ,Water Splitting ,Cds@Nico-Ldh/Nf ,Hydrogen Evolution Reaction ,Oxygen Evolution Reaction
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آدرس
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Institute For Color Science And Technology, Iran, University Of Sistan And Baluchestan, Iran, Institute For Color Science And Technology, Department Of Nanomaterials & Nanocoatings, ایران, Institute For Color Science And Technology, Iran
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Design and fabrication of CdS@NiCo-LDH combined electrocatalyst coating by adjusting electronic structure and interface engineering of layered double hydroxide
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Authors
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Rasouli S.
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Abstract
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It is eminent in many processes of renewable energy conversion to efficient explore inexpensive electrocatalysts for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). The present paper is a report on a convenient approach to the synthesis of a very efficient hybrid electrocatalyst, consisting of Ni-Co layered double hydroxide as the shell and CdS as the core, hence CdS@NiCo-LDH. This electrode has a large specific surface area that allows fast transference of electrons and exhibits long-term stability. We fabricated 3D CdS, CdS@Ni1.5Co0.5-LDH, CdS@Ni1.33Co0.67-LDH, and CdS@Ni1.67Co0.33-LDH electrodes on a nickel foam using synthetic electrodeposition. After electrochemical tests, CdS@Ni1.5Co0.5-LDH exhibited the best HER performance via producing current densities of 20 and 100 mA cm-2 at overpotentials of -135 and -189 mV, respectively. Further, it showed the best OER catalytic activity by generating current densities of 20 and 100 mA cm-2 at overpotentials of 144 and 206 mV, in that order.
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Keywords
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layered double hydroxide (LDH) ,water splitting ,CdS@NiCo-LDH/NF ,hydrogen evolution reaction ,oxygen evolution reaction
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