Preparation of double-layered Co−Ci/NiFeOOH co-catalyst for highly meliorated PEC performance in water splitting
The cobalt−carbonate (CoCi)/NiFeOOH double-layer co-catalyst was prepared on bismuth vanadate (BiVO4). Compared with the same type of electrode (Co−Pi/NiFeOOH/BiVO4 and Co−Sil/NiFeOOH/BiVO4), the photoelectrochemical (PEC) performance of the composite electrode presents the most excellent performanc...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2022-07-01
|
| Series: | Advanced Powder Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772834X21000245 |
| _version_ | 1798005003598692352 |
|---|---|
| author | Xingsheng Hu Yan Li Xinxin Wei Lei Wang Houde She Jingwei Huang Qizhao Wang |
| author_facet | Xingsheng Hu Yan Li Xinxin Wei Lei Wang Houde She Jingwei Huang Qizhao Wang |
| author_sort | Xingsheng Hu |
| collection | DOAJ |
| description | The cobalt−carbonate (CoCi)/NiFeOOH double-layer co-catalyst was prepared on bismuth vanadate (BiVO4). Compared with the same type of electrode (Co−Pi/NiFeOOH/BiVO4 and Co−Sil/NiFeOOH/BiVO4), the photoelectrochemical (PEC) performance of the composite electrode presents the most excellent performance. The Co−Ci/NiFeOOH/BiVO4 electrode prepared by photoelectric deposition (PED) achieves a photocurrent density of 4.1 mA/cm2 at 1.23 V vs RHE, and the applied bias photon-current efficiency (ABPE) is up to 0.95%. In addition, with the help of the equivalent circuit fitting in electrochemical impedance spectroscopy (EIS), the charge transfer resistance (Rct) of Co−Ci/NiFeOOH/BiVO4 is only 108.9 Ω, which is 16% that of BiVO4. The enhanced PEC performance of Co−Ci/NiFeOOH/BiVO4 in the double-layer cocatalyst system is attributed to the outstanding advantages of Co−Ci cocatalyst in oxygen vacancy defects, superior to other cobalt-based catalysts in promoting charge transfer and improving the kinetics of water oxidation. This makes Co−Ci co-catalyst become one of the favorable competitors in the field of photoelectric catalysis. |
| first_indexed | 2024-04-11T12:32:17Z |
| format | Article |
| id | doaj.art-63e001313745483ea238492b95548809 |
| institution | Directory Open Access Journal |
| issn | 2772-834X |
| language | English |
| last_indexed | 2024-04-11T12:32:17Z |
| publishDate | 2022-07-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Advanced Powder Materials |
| spelling | doaj.art-63e001313745483ea238492b955488092022-12-22T04:23:43ZengKeAi Communications Co. Ltd.Advanced Powder Materials2772-834X2022-07-0113100024Preparation of double-layered Co−Ci/NiFeOOH co-catalyst for highly meliorated PEC performance in water splittingXingsheng Hu0Yan Li1Xinxin Wei2Lei Wang3Houde She4Jingwei Huang5Qizhao Wang6Gansu International Scientific and Technological Cooperation Base of Water–Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, ChinaGansu International Scientific and Technological Cooperation Base of Water–Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, ChinaGansu International Scientific and Technological Cooperation Base of Water–Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, ChinaGansu International Scientific and Technological Cooperation Base of Water–Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, ChinaGansu International Scientific and Technological Cooperation Base of Water–Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, ChinaGansu International Scientific and Technological Cooperation Base of Water–Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, ChinaGansu International Scientific and Technological Cooperation Base of Water–Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China; School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Chang'an University, Xi'an 710054, China; Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin 300384, China; Corresponding author. Gansu International Scientific and Technological Cooperation Base of Water–Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.The cobalt−carbonate (CoCi)/NiFeOOH double-layer co-catalyst was prepared on bismuth vanadate (BiVO4). Compared with the same type of electrode (Co−Pi/NiFeOOH/BiVO4 and Co−Sil/NiFeOOH/BiVO4), the photoelectrochemical (PEC) performance of the composite electrode presents the most excellent performance. The Co−Ci/NiFeOOH/BiVO4 electrode prepared by photoelectric deposition (PED) achieves a photocurrent density of 4.1 mA/cm2 at 1.23 V vs RHE, and the applied bias photon-current efficiency (ABPE) is up to 0.95%. In addition, with the help of the equivalent circuit fitting in electrochemical impedance spectroscopy (EIS), the charge transfer resistance (Rct) of Co−Ci/NiFeOOH/BiVO4 is only 108.9 Ω, which is 16% that of BiVO4. The enhanced PEC performance of Co−Ci/NiFeOOH/BiVO4 in the double-layer cocatalyst system is attributed to the outstanding advantages of Co−Ci cocatalyst in oxygen vacancy defects, superior to other cobalt-based catalysts in promoting charge transfer and improving the kinetics of water oxidation. This makes Co−Ci co-catalyst become one of the favorable competitors in the field of photoelectric catalysis.http://www.sciencedirect.com/science/article/pii/S2772834X21000245BiVO4Water splittingCo-catalystCobalt−carbonate (Co−Ci) |
| spellingShingle | Xingsheng Hu Yan Li Xinxin Wei Lei Wang Houde She Jingwei Huang Qizhao Wang Preparation of double-layered Co−Ci/NiFeOOH co-catalyst for highly meliorated PEC performance in water splitting Advanced Powder Materials BiVO4 Water splitting Co-catalyst Cobalt−carbonate (Co−Ci) |
| title | Preparation of double-layered Co−Ci/NiFeOOH co-catalyst for highly meliorated PEC performance in water splitting |
| title_full | Preparation of double-layered Co−Ci/NiFeOOH co-catalyst for highly meliorated PEC performance in water splitting |
| title_fullStr | Preparation of double-layered Co−Ci/NiFeOOH co-catalyst for highly meliorated PEC performance in water splitting |
| title_full_unstemmed | Preparation of double-layered Co−Ci/NiFeOOH co-catalyst for highly meliorated PEC performance in water splitting |
| title_short | Preparation of double-layered Co−Ci/NiFeOOH co-catalyst for highly meliorated PEC performance in water splitting |
| title_sort | preparation of double layered co ci nifeooh co catalyst for highly meliorated pec performance in water splitting |
| topic | BiVO4 Water splitting Co-catalyst Cobalt−carbonate (Co−Ci) |
| url | http://www.sciencedirect.com/science/article/pii/S2772834X21000245 |
| work_keys_str_mv | AT xingshenghu preparationofdoublelayeredcocinifeoohcocatalystforhighlymelioratedpecperformanceinwatersplitting AT yanli preparationofdoublelayeredcocinifeoohcocatalystforhighlymelioratedpecperformanceinwatersplitting AT xinxinwei preparationofdoublelayeredcocinifeoohcocatalystforhighlymelioratedpecperformanceinwatersplitting AT leiwang preparationofdoublelayeredcocinifeoohcocatalystforhighlymelioratedpecperformanceinwatersplitting AT houdeshe preparationofdoublelayeredcocinifeoohcocatalystforhighlymelioratedpecperformanceinwatersplitting AT jingweihuang preparationofdoublelayeredcocinifeoohcocatalystforhighlymelioratedpecperformanceinwatersplitting AT qizhaowang preparationofdoublelayeredcocinifeoohcocatalystforhighlymelioratedpecperformanceinwatersplitting |