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Updated: Feb 7, 2026

Preparation of Carbon Nanosheets at Room Temperature

Preparation of Carbon Nanosheets at Room Temperature

Published on: March 8, 2016

効率的かつ選択的なアンモニアへの硝酸塩電気還元のための炭素ナノシートに埋め込まれたFeドープCuO

Jinjie Lin¹, Nan Wu¹, Xianhong Wu¹

¹Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China. wuxianhong@dlpu.edu.cn.

Chemical communications (Cambridge, England)

|February 5, 2026

Abstract:

The nitrate electroreduction reaction (NO₃^-RR) provides a low-carbon and environmentally friendly strategy for ammonia production. Here, a sustainable method for synthesizing carbon nanosheets is developed by assembling biomass molecules on a boric acid template, followed by thermal annealing. During this process, the introduction of Fe³⁺ and Cu²⁺ ions enables the formation of Fe-doped CuO nanoparticles embedded in carbon nanosheets (Fe-CuO/C). The Fe-CuO/C shows high activity for the NO₃^-RR resulting in a low potential of 0.089 and -0.192 V vs. RHE at -10 and -50 mA cm^-2, with high ammonia yield and faraday efficiency. Theoretical calculations indicate that the *NO to *NOH step is the rate-determining step during the NO₃^-RR. The doping of Fe effectively reduces the energy barrier of this step.

キーワード:

硝酸塩電気還元アンモニア合成 FeドープCuO 炭素ナノシート持続可能な触媒

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