Preparation of nanostructured p-NiO/n-Fe2O3 heterojunction and study of their enhanced photoelectrochemical water splitting performance
The n-type α-Fe2O3 nanoflakes are deposited on the FTO substrate by a hydrothermal method and modified with p-type NiO nanoparticles to enhance the photoelectrochemical water splitting performance. X-ray diffraction, field emission scanning electron microscopy, UV–visible and impedance spectroscopy...
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| Veröffentlicht in: | Materials letters 2014-10, Vol.133, p.123-126 |
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| creator | Rajendran, Ramesh Yaakob, Zahira Mat Teridi, Mohd Asri Abd Rahaman, Muhammad Syukri Sopian, Kamaruzzaman |
| description | The n-type α-Fe2O3 nanoflakes are deposited on the FTO substrate by a hydrothermal method and modified with p-type NiO nanoparticles to enhance the photoelectrochemical water splitting performance. X-ray diffraction, field emission scanning electron microscopy, UV–visible and impedance spectroscopy analysis are carried out to study the structural, morphological, and electrochemical characteristics. Formation of p–n heterojunction is confirmed by an impedance spectroscopy analysis and explains the transport of charge carriers. NiO/α-Fe2O3 heterojunction thin film shows the enhancement in photocurrent density (1.55mA/cm2) compared to the α-Fe2O3 nanoflakes alone (0.08mA/cm2) under simulated solar radiation at applied potential 1V/RHE.
•Heterojunction p-NiO/ n-Fe2O3 nanostructure is prepared by solution method with enhanced phtotelectrochemical water splitting performance.•NiO nanoparticles are uniformly covered on vertically oriented α-Fe2O3 nanoflakes with an average size of 20nm.•NiO/α-Fe2O3 heterojunction exhibits the maximum photocurrent density of 1.55mA/cm2 at 1V/RHE. |
| doi_str_mv | 10.1016/j.matlet.2014.06.157 |
| format | Article |
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•Heterojunction p-NiO/ n-Fe2O3 nanostructure is prepared by solution method with enhanced phtotelectrochemical water splitting performance.•NiO nanoparticles are uniformly covered on vertically oriented α-Fe2O3 nanoflakes with an average size of 20nm.•NiO/α-Fe2O3 heterojunction exhibits the maximum photocurrent density of 1.55mA/cm2 at 1V/RHE.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2014.06.157</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Chemical synthesis ; Density ; Field emission ; Heterojunctions ; Impedance spectroscopy ; Nanocrystalline materials ; Nanostructure ; Optical materials and properties ; Photocurrent ; Photoelectric effect ; Photoelectrochemical measurement ; Water splitting ; X-ray diffraction</subject><ispartof>Materials letters, 2014-10, Vol.133, p.123-126</ispartof><rights>2014 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0167577X1401221X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Rajendran, Ramesh</creatorcontrib><creatorcontrib>Yaakob, Zahira</creatorcontrib><creatorcontrib>Mat Teridi, Mohd Asri</creatorcontrib><creatorcontrib>Abd Rahaman, Muhammad Syukri</creatorcontrib><creatorcontrib>Sopian, Kamaruzzaman</creatorcontrib><title>Preparation of nanostructured p-NiO/n-Fe2O3 heterojunction and study of their enhanced photoelectrochemical water splitting performance</title><title>Materials letters</title><description>The n-type α-Fe2O3 nanoflakes are deposited on the FTO substrate by a hydrothermal method and modified with p-type NiO nanoparticles to enhance the photoelectrochemical water splitting performance. X-ray diffraction, field emission scanning electron microscopy, UV–visible and impedance spectroscopy analysis are carried out to study the structural, morphological, and electrochemical characteristics. Formation of p–n heterojunction is confirmed by an impedance spectroscopy analysis and explains the transport of charge carriers. NiO/α-Fe2O3 heterojunction thin film shows the enhancement in photocurrent density (1.55mA/cm2) compared to the α-Fe2O3 nanoflakes alone (0.08mA/cm2) under simulated solar radiation at applied potential 1V/RHE.
•Heterojunction p-NiO/ n-Fe2O3 nanostructure is prepared by solution method with enhanced phtotelectrochemical water splitting performance.•NiO nanoparticles are uniformly covered on vertically oriented α-Fe2O3 nanoflakes with an average size of 20nm.•NiO/α-Fe2O3 heterojunction exhibits the maximum photocurrent density of 1.55mA/cm2 at 1V/RHE.</description><subject>Chemical synthesis</subject><subject>Density</subject><subject>Field emission</subject><subject>Heterojunctions</subject><subject>Impedance spectroscopy</subject><subject>Nanocrystalline materials</subject><subject>Nanostructure</subject><subject>Optical materials and properties</subject><subject>Photocurrent</subject><subject>Photoelectric effect</subject><subject>Photoelectrochemical measurement</subject><subject>Water splitting</subject><subject>X-ray diffraction</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNotkctKxDAUQIMoOD7-wEWWblqTJm0mG0HEF4jjQsFdyKQ3NkMnqUmq-AX-tq3j6m7OudzLQeiMkpIS2lxsyq3OPeSyIpSXpClpLfbQgi4FK7gUch8tJkwUtRBvh-gopQ0hhEvCF-jnOcKgo84ueBws9tqHlONo8hihxUPx5FYXvriFasVwBxli2Ize_OHatzjlsf2exdyBixh8p72ZxS7kAD2YHIPpYOuM7vGXnnycht7l7Pw7HiDaELezcYIOrO4TnP7PY_R6e_NyfV88ru4erq8eC6g4y4WmnEIlZQ3Ltga9rI1ka1NRLahm0oAmkhjbSLu2RFoBgoNktqWGVw1YumbH6Hy3d4jhY4SU1dYlA32vPYQxKdrwilEhuZzQyx0K0z2fDqJKxsH8nYvTX6oNTlGi5gJqo3YF1FxAkUZNBdgvZfCA-g</recordid><startdate>20141015</startdate><enddate>20141015</enddate><creator>Rajendran, Ramesh</creator><creator>Yaakob, Zahira</creator><creator>Mat Teridi, Mohd Asri</creator><creator>Abd Rahaman, Muhammad Syukri</creator><creator>Sopian, Kamaruzzaman</creator><general>Elsevier B.V</general><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20141015</creationdate><title>Preparation of nanostructured p-NiO/n-Fe2O3 heterojunction and study of their enhanced photoelectrochemical water splitting performance</title><author>Rajendran, Ramesh ; Yaakob, Zahira ; Mat Teridi, Mohd Asri ; Abd Rahaman, Muhammad Syukri ; Sopian, Kamaruzzaman</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e243t-a141e2995e8d5ea85c93bc21a71a39cea090cf69fbf09f7e74e93fd1c426ef1b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Chemical synthesis</topic><topic>Density</topic><topic>Field emission</topic><topic>Heterojunctions</topic><topic>Impedance spectroscopy</topic><topic>Nanocrystalline materials</topic><topic>Nanostructure</topic><topic>Optical materials and properties</topic><topic>Photocurrent</topic><topic>Photoelectric effect</topic><topic>Photoelectrochemical measurement</topic><topic>Water splitting</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rajendran, Ramesh</creatorcontrib><creatorcontrib>Yaakob, Zahira</creatorcontrib><creatorcontrib>Mat Teridi, Mohd Asri</creatorcontrib><creatorcontrib>Abd Rahaman, Muhammad Syukri</creatorcontrib><creatorcontrib>Sopian, Kamaruzzaman</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rajendran, Ramesh</au><au>Yaakob, Zahira</au><au>Mat Teridi, Mohd Asri</au><au>Abd Rahaman, Muhammad Syukri</au><au>Sopian, Kamaruzzaman</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation of nanostructured p-NiO/n-Fe2O3 heterojunction and study of their enhanced photoelectrochemical water splitting performance</atitle><jtitle>Materials letters</jtitle><date>2014-10-15</date><risdate>2014</risdate><volume>133</volume><spage>123</spage><epage>126</epage><pages>123-126</pages><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>The n-type α-Fe2O3 nanoflakes are deposited on the FTO substrate by a hydrothermal method and modified with p-type NiO nanoparticles to enhance the photoelectrochemical water splitting performance. X-ray diffraction, field emission scanning electron microscopy, UV–visible and impedance spectroscopy analysis are carried out to study the structural, morphological, and electrochemical characteristics. Formation of p–n heterojunction is confirmed by an impedance spectroscopy analysis and explains the transport of charge carriers. NiO/α-Fe2O3 heterojunction thin film shows the enhancement in photocurrent density (1.55mA/cm2) compared to the α-Fe2O3 nanoflakes alone (0.08mA/cm2) under simulated solar radiation at applied potential 1V/RHE.
•Heterojunction p-NiO/ n-Fe2O3 nanostructure is prepared by solution method with enhanced phtotelectrochemical water splitting performance.•NiO nanoparticles are uniformly covered on vertically oriented α-Fe2O3 nanoflakes with an average size of 20nm.•NiO/α-Fe2O3 heterojunction exhibits the maximum photocurrent density of 1.55mA/cm2 at 1V/RHE.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2014.06.157</doi><tpages>4</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Chemical synthesis Density Field emission Heterojunctions Impedance spectroscopy Nanocrystalline materials Nanostructure Optical materials and properties Photocurrent Photoelectric effect Photoelectrochemical measurement Water splitting X-ray diffraction |
| title | Preparation of nanostructured p-NiO/n-Fe2O3 heterojunction and study of their enhanced photoelectrochemical water splitting performance |
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