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首页> 外文期刊>Catalysis science & technology >Efficient electrocatalytic CO2 conversion into formate with AlxBiyOz nanorods in a wide potential window
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Efficient electrocatalytic CO2 conversion into formate with AlxBiyOz nanorods in a wide potential window

机译：高效electrocatalytic二氧化碳转换成甲酸与AlxBiyOz纳米宽潜在的窗口

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摘要

Electrocatalytic CO2 conversion into value-added fuels to form a sustainable recycling system is desirable but is still confronted with a problem about the lack of highly active electrocatalysts. Herein, novel AlxBiyOz nanorods were synthesized by a facile hydrothermal method for the electrochemical CO2 reduction reaction (CO2RR). The obtained sample exhibits high electrocatalytic activity for CO2 conversion with a faradaic efficiency (FE) of above 90% to formate under a wide potential window from -0.79 V to -1.29 V vs. RHE. Particularly, a FE to formate of up to 97.5% can be achieved at -1.19 V vs. RHE. Furthermore, it shows great stability during the 10 h electrolysis at -0.79 V vs. RHE. It is believed that the introduction of Al species could modulate the electronic configuration of Bi2O3, together with the enlarged surface area and exposed (2 0 1) crystal plane contributing to the enhanced adsorption and activation capability of CO2, which could mainly account for the high CO2RR performance.
机译：Electrocatalytic二氧化碳转换成增值燃料形成一个可持续的循环系统可取的但仍面临着一个问题对高活性electrocatalysts的缺乏。在此,小说AlxBiyOz纳米合成温和的水热方法二氧化碳电化学还原反应(CO2RR)。获得的样品展览高electrocatalytic活动二氧化碳转换感应电流的效率(FE)的90%以上从-0.79下甲酸广泛的潜在的窗口V -1.29 V和流值。可以实现高达97.5%的甲酸为-1.19 V与流值。在10 h电解在-0.79 V和流值。相信的引入物种可以调节电子配置的Bi2O3一起增大表面积和暴露(2 0 1)晶体飞机有助于增强吸附和二氧化碳的活化能力,这可能主要是占高CO2RR性能。

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