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Thermoregulated Phase‐Transition Synthesis of Two‐Dimensional Carbon Nanoplates Rich in sp2 Carbon and Unimodal Ultramicropores for Kinetic Gas Separation
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-01-17 , DOI: 10.1002/anie.201712913 Lu-Hua Zhang 1 , Wen-Cui Li 1 , Hong Liu 2 , Quan-Gao Wang 1 , Lei Tang 1 , Qing-Tao Hu 1 , Wen-Jing Xu 1 , Wei-Hong Qiao 1 , Zhong-Yuan Lu 2 , An-Hui Lu 1
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-01-17 , DOI: 10.1002/anie.201712913 Lu-Hua Zhang 1 , Wen-Cui Li 1 , Hong Liu 2 , Quan-Gao Wang 1 , Lei Tang 1 , Qing-Tao Hu 1 , Wen-Jing Xu 1 , Wei-Hong Qiao 1 , Zhong-Yuan Lu 2 , An-Hui Lu 1
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The development of highly selective, chemically stable and moisture‐resistant adsorbents is a key milestone for gas separation. Porous carbons featured with random orientation and cross‐linking of turbostratic nanodomains usually have a wide distribution of micropores. Here we have developed a thermoregulated phase‐transition‐assisted synthesis of carbon nanoplates with more than 80 % sp2 carbon, unimodal ultramicropore and a controllable thickness. The thin structure allows oriented growth of carbon crystallites, and stacking of crystallites in nearly parallel orientation are responsible for the single size of the micropores. When used for gas separation from CH4, carbon nanoplates exhibit high uptakes (5.2, 5.3 and 5.1 mmol g−1) and selectivities (7, 71 and 386) for CO2, C2H6 and C3H8 under ambient conditions. The dynamic adsorption capacities are close to equilibrium uptakes of single components, further demonstrating superiority of carbon nanoplates in terms of selectivity and sorption kinetics.
中文翻译：
富含sp2碳和单峰超微孔的二维碳纳米板的温度调节相变合成，用于动力学气体分离
高度选择性，化学稳定和防潮的吸附剂的开发是气体分离的重要里程碑。具有随机取向和涡轮层状纳米域交联的多孔碳通常具有广泛的微孔分布。在这里，我们开发了一种碳纳米板的热调节相变辅助合成方法，该碳纳米板具有超过80％的sp 2碳，单峰超微孔和可控制的厚度。薄的结构允许碳微晶定向生长，并且微晶以几乎平行的方向堆叠导致微孔的单一尺寸。当用于从CH 4分离气体时，碳纳米板显示出高吸收（5.2、5.3和5.1 mmol g -1）和在环境条件下对CO 2，C 2 H 6和C 3 H 8的选择性（7、71和386）。动态吸附能力接近单一组分的平衡吸收，进一步证明了碳纳米板在选择性和吸附动力学方面的优越性。
更新日期：2018-01-17
中文翻译：
富含sp2碳和单峰超微孔的二维碳纳米板的温度调节相变合成，用于动力学气体分离
高度选择性，化学稳定和防潮的吸附剂的开发是气体分离的重要里程碑。具有随机取向和涡轮层状纳米域交联的多孔碳通常具有广泛的微孔分布。在这里，我们开发了一种碳纳米板的热调节相变辅助合成方法，该碳纳米板具有超过80％的sp 2碳，单峰超微孔和可控制的厚度。薄的结构允许碳微晶定向生长，并且微晶以几乎平行的方向堆叠导致微孔的单一尺寸。当用于从CH 4分离气体时，碳纳米板显示出高吸收（5.2、5.3和5.1 mmol g -1）和在环境条件下对CO 2，C 2 H 6和C 3 H 8的选择性（7、71和386）。动态吸附能力接近单一组分的平衡吸收，进一步证明了碳纳米板在选择性和吸附动力学方面的优越性。
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