CoNiO2 as a novel water oxidation cocatalyst to enhance PEC water splitting performance of BiVO4
A strategy is proposed for modifying BiVO4 photoanode with CoNiO2 as a novel water oxidation cocatalyst to enhance PEC water splitting performance. The results show that CoNiO2 has the following functions: reducing photogenerated charge recombination centers; providing trapping sites to promote char...
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| Veröffentlicht in: | Chemical communications (Cambridge, England) England), 2020-08, Vol.56 (64), p.9158-9161 |
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| container_title | Chemical communications (Cambridge, England) |
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| creator | Fang, Guozhen Liu, Zhifeng Han, Changcun Ma, Xinguo Lv, Hui Huang, Chuyun Cheng, Zhengwang Tong, Zhengfu Wang, Pan |
| description | A strategy is proposed for modifying BiVO4 photoanode with CoNiO2 as a novel water oxidation cocatalyst to enhance PEC water splitting performance. The results show that CoNiO2 has the following functions: reducing photogenerated charge recombination centers; providing trapping sites to promote charge separation; improving the stability of the overall system; providing more active sites; and offering a lower overpotential. The BiVO4/CoNiO2 photoanode has a higher photocurrent density (1.16 mA cm−2 at 1.23 V vs. RHE), a lower onset potential (∼0.06 V vs. RHE), a larger IPCE (34.37%) and ABPE (0.163%), better stability and good rates of hydrogen evolution (0.0148 μmol cm−2 min−1) and oxygen evolution (0.0076 μmol cm−2 min−1). The strategy provides promising prospects for achieving efficient PEC water splitting performance using water oxidation cocatalysts. |
| doi_str_mv | 10.1039/d0cc03516e |
| format | Article |
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The results show that CoNiO2 has the following functions: reducing photogenerated charge recombination centers; providing trapping sites to promote charge separation; improving the stability of the overall system; providing more active sites; and offering a lower overpotential. The BiVO4/CoNiO2 photoanode has a higher photocurrent density (1.16 mA cm−2 at 1.23 V vs. RHE), a lower onset potential (∼0.06 V vs. RHE), a larger IPCE (34.37%) and ABPE (0.163%), better stability and good rates of hydrogen evolution (0.0148 μmol cm−2 min−1) and oxygen evolution (0.0076 μmol cm−2 min−1). 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The results show that CoNiO2 has the following functions: reducing photogenerated charge recombination centers; providing trapping sites to promote charge separation; improving the stability of the overall system; providing more active sites; and offering a lower overpotential. The BiVO4/CoNiO2 photoanode has a higher photocurrent density (1.16 mA cm−2 at 1.23 V vs. RHE), a lower onset potential (∼0.06 V vs. RHE), a larger IPCE (34.37%) and ABPE (0.163%), better stability and good rates of hydrogen evolution (0.0148 μmol cm−2 min−1) and oxygen evolution (0.0076 μmol cm−2 min−1). The strategy provides promising prospects for achieving efficient PEC water splitting performance using water oxidation cocatalysts.</description><subject>Bismuth oxides</subject><subject>Chemical evolution</subject><subject>Hydrogen evolution</subject><subject>Oxidation</subject><subject>Photoelectric effect</subject><subject>Photoelectric emission</subject><subject>Stability</subject><subject>Vanadates</subject><subject>Water splitting</subject><issn>1359-7345</issn><issn>1364-548X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNpdjk1LAzEYhIMoWKsXf0HAi5fVfG9y1KVVobgeiniraTbRlG2ybrJ-_HtX7clh4B2Yh5cB4BSjC4youmyQMYhyLOwemGAqWMGZfNr_yVwVJWX8EByltEGjMJcT8FzFe18TqBPUMMR328IPnW0P46dvdPYxQBONzrr9ShnmCG141cFY-DCrdmTqWp-zDy-ws72L_fa3jw5e-8eaHYMDp9tkT3Z3Cpbz2bK6LRb1zV11tSg6gVWhpNOjGVPIIEnKtbS0wZI7g9YNdopZYoQiUmumGLekFEY54iQyJXZ67egUnP-97fr4NtiUV1ufjG1bHWwc0oowQjkVXKgRPfuHbuLQh3HcSFFCJSOK02-jNmM9</recordid><startdate>20200818</startdate><enddate>20200818</enddate><creator>Fang, Guozhen</creator><creator>Liu, Zhifeng</creator><creator>Han, Changcun</creator><creator>Ma, Xinguo</creator><creator>Lv, Hui</creator><creator>Huang, Chuyun</creator><creator>Cheng, Zhengwang</creator><creator>Tong, Zhengfu</creator><creator>Wang, Pan</creator><general>Royal Society of Chemistry</general><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope></search><sort><creationdate>20200818</creationdate><title>CoNiO2 as a novel water oxidation cocatalyst to enhance PEC water splitting performance of BiVO4</title><author>Fang, Guozhen ; Liu, Zhifeng ; Han, Changcun ; Ma, Xinguo ; Lv, Hui ; Huang, Chuyun ; Cheng, Zhengwang ; Tong, Zhengfu ; Wang, Pan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p619-98fa8fa4490c0827b8e3d185fc0bd1f94e2c6928aa4945e276c9f2f80c71fabf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Bismuth oxides</topic><topic>Chemical evolution</topic><topic>Hydrogen evolution</topic><topic>Oxidation</topic><topic>Photoelectric effect</topic><topic>Photoelectric emission</topic><topic>Stability</topic><topic>Vanadates</topic><topic>Water splitting</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fang, Guozhen</creatorcontrib><creatorcontrib>Liu, Zhifeng</creatorcontrib><creatorcontrib>Han, Changcun</creatorcontrib><creatorcontrib>Ma, Xinguo</creatorcontrib><creatorcontrib>Lv, Hui</creatorcontrib><creatorcontrib>Huang, Chuyun</creatorcontrib><creatorcontrib>Cheng, Zhengwang</creatorcontrib><creatorcontrib>Tong, Zhengfu</creatorcontrib><creatorcontrib>Wang, Pan</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><collection>MEDLINE - Academic</collection><jtitle>Chemical communications (Cambridge, England)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fang, Guozhen</au><au>Liu, Zhifeng</au><au>Han, Changcun</au><au>Ma, Xinguo</au><au>Lv, Hui</au><au>Huang, Chuyun</au><au>Cheng, Zhengwang</au><au>Tong, Zhengfu</au><au>Wang, Pan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>CoNiO2 as a novel water oxidation cocatalyst to enhance PEC water splitting performance of BiVO4</atitle><jtitle>Chemical communications (Cambridge, England)</jtitle><date>2020-08-18</date><risdate>2020</risdate><volume>56</volume><issue>64</issue><spage>9158</spage><epage>9161</epage><pages>9158-9161</pages><issn>1359-7345</issn><eissn>1364-548X</eissn><abstract>A strategy is proposed for modifying BiVO4 photoanode with CoNiO2 as a novel water oxidation cocatalyst to enhance PEC water splitting performance. The results show that CoNiO2 has the following functions: reducing photogenerated charge recombination centers; providing trapping sites to promote charge separation; improving the stability of the overall system; providing more active sites; and offering a lower overpotential. The BiVO4/CoNiO2 photoanode has a higher photocurrent density (1.16 mA cm−2 at 1.23 V vs. RHE), a lower onset potential (∼0.06 V vs. RHE), a larger IPCE (34.37%) and ABPE (0.163%), better stability and good rates of hydrogen evolution (0.0148 μmol cm−2 min−1) and oxygen evolution (0.0076 μmol cm−2 min−1). The strategy provides promising prospects for achieving efficient PEC water splitting performance using water oxidation cocatalysts.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d0cc03516e</doi><tpages>4</tpages></addata></record> |
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| ispartof | Chemical communications (Cambridge, England), 2020-08, Vol.56 (64), p.9158-9161 |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Bismuth oxides Chemical evolution Hydrogen evolution Oxidation Photoelectric effect Photoelectric emission Stability Vanadates Water splitting |
| title | CoNiO2 as a novel water oxidation cocatalyst to enhance PEC water splitting performance of BiVO4 |
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