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A highly durable catalyst based on CoxMn3-xO4 nanosheets for low-temperature formaldehyde oxidation 被引量:10

A highly durable catalyst based on CoxMn3-xO4 nanosheets for low-temperature formaldehyde oxidation
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摘要 Cost-effective catalysts for the oxidation of volatile organic compounds (VOCs) are critical to energy conversion applications and environmental protection. The main bottleneck of this process is the development of an efficient, stable, and cost-effective catalyst that can oxidize HCHO at low temperature. Here, an advanced material consisting of manganese cobalt oxide nanosheet arrays uniformly covered on a carbon textile is successfully fabricated by a simple anodic electrodeposition method combined with post annealing treatment, and can be directly applied as a high-performance catalytic material for HCHO elimination. Benefiting from the increased surface oxygen species and improved redox properties, the as-prepared manganese cobalt oxide nanosheets showed substantially higher catalytic activity for HCHO oxidation. The catalyst completely converted HCHO to CO2 at temperatures as low as 100 ℃, and exhibited excellent catalytic stability. Such impressive results are rarely achieved by non-precious metal-based catalysts at such low temperatures. Cost-effective catalysts for the oxidation of volatile organic compounds (VOCs) are critical to energy conversion applications and environmental protection. The main bottleneck of this process is the development of an efficient, stable, and cost-effective catalyst that can oxidize HCHO at low temperature. Here, an advanced material consisting of manganese cobalt oxide nanosheet arrays uniformly covered on a carbon textile is successfully fabricated by a simple anodic electrodeposition method combined with post annealing treatment, and can be directly applied as a high-performance catalytic material for HCHO elimination. Benefiting from the increased surface oxygen species and improved redox properties, the as-prepared manganese cobalt oxide nanosheets showed substantially higher catalytic activity for HCHO oxidation. The catalyst completely converted HCHO to CO2 at temperatures as low as 100 ℃, and exhibited excellent catalytic stability. Such impressive results are rarely achieved by non-precious metal-based catalysts at such low temperatures.
出处 《Nano Research》 SCIE EI CAS CSCD 2016年第12期3881-3892,共12页 纳米研究(英文版)
基金 This work was preliminarily supported by the National Natural Science Foundation of China (Nos. 21425627 and 21276104) and Natural Science Foundation of Guangdong Province (Nos. 21425627).
关键词 CoxMn3-xO4 nanosheet FORMALDEHYDE catalytic oxidation mechanism CoxMn3-xO4 nanosheet formaldehyde catalytic oxidation mechanism
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