مورد إلكتروني
Operando Converting BiOCl into Bi2O2(CO3)xCly for Efficient Electrocatalytic Reduction of Carbon Dioxide to Formate
| العنوان: | Operando Converting BiOCl into Bi2O2(CO3)xCly for Efficient Electrocatalytic Reduction of Carbon Dioxide to Formate |
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| المصدر: | Nano-Micro Letters |
| بيانات النشر: | Open Access Science Online 2022-12 |
| تفاصيل مُضافة: | Fu, Huai Qin Liu, Junxian Bedford, Nicholas M. Wang, Yun Wright, Joshua Liu, Peng Fei Wen, Chun Fang Wang, Liang Yin, Huajie Qi, Dongchen Liu, Porun Yang, Hua Gui Zhao, Huijun |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Bismuth-based materials (e.g., metallic, oxides and subcarbonate) are emerged as promising electrocatalysts for converting CO2 to formate. However, Bio-based electrocatalysts possess high overpotentials, while bismuth oxides and subcarbonate encounter stability issues. This work is designated to exemplify that the operando synthesis can be an effective means to enhance the stability of electrocatalysts under operando CO2RR conditions. A synthetic approach is developed to electrochemically convert BiOCl into Cl-containing subcarbonate (Bi2O2(CO3)xCly) under operando CO2RR conditions. The systematic operando spectroscopic studies depict that BiOCl is converted to Bi2O2(CO3)xCly via a cathodic potential-promoted anion-exchange process. The operando synthesized Bi2O2(CO3)xCly can tolerate − 1.0 V versus RHE, while for the wet-chemistry synthesized pure Bi2O2CO3, the formation of metallic Bio occurs at − 0.6 V versus RHE. At − 0.8 V versus RHE, Bi2O2(CO3)xCly can readily attain a FEHCOO- of 97.9%, much higher than that of the pure Bi2O2CO3 (81.3%). DFT calculations indicate that differing from the pure Bi2O2CO3-catalyzed CO2RR, where formate is formed via a *OCHO intermediate step that requires a high energy input energy of 2.69 eV to proceed, the formation of HCOO− over Bi2O2(CO3)xCly has proceeded via a *COOH intermediate step that only requires low energy input of 2.56 eV. |
| مصطلحات الفهرس: | Carbon dioxide reduction, Cathodic potential-promoted anion-exchange, Chloride-containing bismuth subcarbonate, Stability, Contribution to Journal |
| URL: | doi:10.1007/s40820-022-00862-0 Fu, Huai Qin, Liu, Junxian, Bedford, Nicholas M., Wang, Yun, Wright, Joshua, Liu, Peng Fei, Wen, Chun Fang, Wang, Liang, Yin, Huajie, Qi, Dongchen, Liu, Porun, Yang, Hua Gui, & Zhao, Huijun (2022) Operando Converting BiOCl into Bi2O2(CO3)xCly for Efficient Electrocatalytic Reduction of Carbon Dioxide to Formate. Nano-Micro Letters, 14(1), Article number: 121. |
| الإتاحة: | Open access content. Open access content free_to_read http://creativecommons.org/licenses/by/4.0 2022 The Author(s) This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au |
| ملاحظة: | application/pdf |
| أرقام أخرى: | ATUTQ oai:eprints.qut.edu.au:234758 Centre for Materials Science; Faculty of Science; School of Chemistry & Physics 1343979729 |
| المصدر المساهم: | QUEENSLAND UNIV OF TECH From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1343979729 |
| قاعدة البيانات: | OAIster |
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