Jiahe Li, Yujie Huang, Haijun Wang, Minji Yang, Tao Han, Gaili Ke, Wenrong Wang, Hanmei Jiang and Huichao He*,
{"title":"PbCrO4薄膜光阳极在不同电解质中太阳水氧化的活性和稳定性研究。","authors":"Jiahe Li, Yujie Huang, Haijun Wang, Minji Yang, Tao Han, Gaili Ke, Wenrong Wang, Hanmei Jiang and Huichao He*, ","doi":"10.1021/acs.langmuir.5c02297","DOIUrl":null,"url":null,"abstract":"<p >Monoclinic PbCrO<sub>4</sub> is an n-type semiconductor with a band gap of ∼2.2 eV, which has attracted research attentions as photoanode material for solar water splitting in recent years, but few works consider the correlation of PbCrO<sub>4</sub> photoanodes’ activity and stability with electrolytes. Herein, typical monoclinic PbCrO<sub>4</sub> films were prepared by a drop-casting method and investigated as photoanodes for solar water splitting in sodium sulfate (NSO), phosphate-buffered saline (PBS), potassium bicarbonate (KHCO), sodium borate (NBO), and potassium hydrogen phthalate (KHP) aqueous electrolyte. The water oxidation activity of the PbCrO<sub>4</sub> film photoanode was found to be closely related to the electrolyte, and a relatively higher activity was observed on the PbCrO<sub>4</sub> photoanode in PBS and KHP. However, in the five types of electrolytes, the PbCrO<sub>4</sub> film photoanode had unsatisfactory stability due to the presence of photocorrosion, composition transformation, and dissolution, posing a significant challenge to the application of PbCrO<sub>4</sub> in solar water splitting. In the Na<sub>2</sub>SO<sub>3</sub>/KHP mixing electrolyte, improved and stable photocurrent can be achieved on the PbCrO<sub>4</sub> film photoanode for the oxidation of SO<sub>3</sub><sup>2–</sup> into SO<sub>4</sub><sup>2–</sup>. The present work reveals the objective water splitting behaviors of the PbCrO<sub>4</sub> film photoanode in typical electrolytes, which could provide helpful reference and act as a reminder for the research of PbCrO<sub>4</sub> and similar photoanode materials.</p>","PeriodicalId":50,"journal":{"name":"Langmuir","volume":"41 30","pages":"20096–20104"},"PeriodicalIF":3.9000,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Insight into the Activity and Stability Behaviors of the PbCrO4 Film Photoanode during Solar Water Oxidation in Different Electrolytes\",\"authors\":\"Jiahe Li, Yujie Huang, Haijun Wang, Minji Yang, Tao Han, Gaili Ke, Wenrong Wang, Hanmei Jiang and Huichao He*, \",\"doi\":\"10.1021/acs.langmuir.5c02297\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Monoclinic PbCrO<sub>4</sub> is an n-type semiconductor with a band gap of ∼2.2 eV, which has attracted research attentions as photoanode material for solar water splitting in recent years, but few works consider the correlation of PbCrO<sub>4</sub> photoanodes’ activity and stability with electrolytes. Herein, typical monoclinic PbCrO<sub>4</sub> films were prepared by a drop-casting method and investigated as photoanodes for solar water splitting in sodium sulfate (NSO), phosphate-buffered saline (PBS), potassium bicarbonate (KHCO), sodium borate (NBO), and potassium hydrogen phthalate (KHP) aqueous electrolyte. The water oxidation activity of the PbCrO<sub>4</sub> film photoanode was found to be closely related to the electrolyte, and a relatively higher activity was observed on the PbCrO<sub>4</sub> photoanode in PBS and KHP. However, in the five types of electrolytes, the PbCrO<sub>4</sub> film photoanode had unsatisfactory stability due to the presence of photocorrosion, composition transformation, and dissolution, posing a significant challenge to the application of PbCrO<sub>4</sub> in solar water splitting. In the Na<sub>2</sub>SO<sub>3</sub>/KHP mixing electrolyte, improved and stable photocurrent can be achieved on the PbCrO<sub>4</sub> film photoanode for the oxidation of SO<sub>3</sub><sup>2–</sup> into SO<sub>4</sub><sup>2–</sup>. 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Insight into the Activity and Stability Behaviors of the PbCrO4 Film Photoanode during Solar Water Oxidation in Different Electrolytes
Monoclinic PbCrO4 is an n-type semiconductor with a band gap of ∼2.2 eV, which has attracted research attentions as photoanode material for solar water splitting in recent years, but few works consider the correlation of PbCrO4 photoanodes’ activity and stability with electrolytes. Herein, typical monoclinic PbCrO4 films were prepared by a drop-casting method and investigated as photoanodes for solar water splitting in sodium sulfate (NSO), phosphate-buffered saline (PBS), potassium bicarbonate (KHCO), sodium borate (NBO), and potassium hydrogen phthalate (KHP) aqueous electrolyte. The water oxidation activity of the PbCrO4 film photoanode was found to be closely related to the electrolyte, and a relatively higher activity was observed on the PbCrO4 photoanode in PBS and KHP. However, in the five types of electrolytes, the PbCrO4 film photoanode had unsatisfactory stability due to the presence of photocorrosion, composition transformation, and dissolution, posing a significant challenge to the application of PbCrO4 in solar water splitting. In the Na2SO3/KHP mixing electrolyte, improved and stable photocurrent can be achieved on the PbCrO4 film photoanode for the oxidation of SO32– into SO42–. The present work reveals the objective water splitting behaviors of the PbCrO4 film photoanode in typical electrolytes, which could provide helpful reference and act as a reminder for the research of PbCrO4 and similar photoanode materials.
期刊介绍:
Langmuir is an interdisciplinary journal publishing articles in the following subject categories:
Colloids: surfactants and self-assembly, dispersions, emulsions, foams
Interfaces: adsorption, reactions, films, forces
Biological Interfaces: biocolloids, biomolecular and biomimetic materials
Materials: nano- and mesostructured materials, polymers, gels, liquid crystals
Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry
Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals
However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do?
Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*.
This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).