Cobalt embedded in nitrogen-doped porous carbon as a robust heterogeneous catalyst for the atom-economic alcohol dehydrogenation to carboxylic acids; Carbon; Vol. 174
| Parent link: | Carbon Vol. 174.— 2021.— [P. 284-294] |
|---|---|
| 企业作者: | |
| 其他作者: | , , , , , , , , |
| 总结: | Title screen Herein, cobalt embedded in nitrogen-doped porous carbon (Co@NC) was developed as a robust heterogeneous catalyst for the dehydrogenative coupling of primary alcohols and hydroxides. With Co@NC as the first earth-abundant metal/carbon composite material for this transformation, numerous aromatic and aliphatic carboxylic acids were efficiently afforded. Notably, the newly prepared Co@NC was fabricated in a facile and straightforward manner and reused up to 15 recycle rounds without activity decay. It is also worth emphasizing that the catalyst recycling was realized via magnetic separation with no special treatment or activation. Additionally, further experiments elucidated the pivotal role of the cobalt and nitrogen elements dispersed in the carbon matrix as well as the hierarchical porosity (micro-/meso-pores) in the catalytic activity and recyclability. Considering the active sites of Co@NC, we envisioned that the Co-N species was the most active site, while other active sites such as Co-O, Co0 species and free N-doped carbon were also present, but demonstrating lower activity or stability in comparison with the Co-N species. Additional mechanistic investigations were carried out to gain more insights into the possible reaction pathways. We found that the aldehyde was identified as a crucial intermediate, and two possible pathways were proposed for this catalytic process. Режим доступа: по договору с организацией-держателем ресурса |
| 语言: | 英语 |
| 出版: |
2021
|
| 主题: | |
| 在线阅读: | https://doi.org/10.1016/j.carbon.2020.12.040 |
| 格式: | 电子 本书章节 |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667944 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 667944 | ||
| 005 | 20250331092538.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\39155 | ||
| 035 | |a RU\TPU\network\39090 | ||
| 090 | |a 667944 | ||
| 100 | |a 20220517d2021 k||y0rusy50 ba | ||
| 101 | 0 | |a eng | |
| 102 | |a NL | ||
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a Cobalt embedded in nitrogen-doped porous carbon as a robust heterogeneous catalyst for the atom-economic alcohol dehydrogenation to carboxylic acids |f Cheng Chen, Zhi-Qin Wang, Yan-Yan Gong [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 81 tit.] | ||
| 330 | |a Herein, cobalt embedded in nitrogen-doped porous carbon (Co@NC) was developed as a robust heterogeneous catalyst for the dehydrogenative coupling of primary alcohols and hydroxides. With Co@NC as the first earth-abundant metal/carbon composite material for this transformation, numerous aromatic and aliphatic carboxylic acids were efficiently afforded. Notably, the newly prepared Co@NC was fabricated in a facile and straightforward manner and reused up to 15 recycle rounds without activity decay. It is also worth emphasizing that the catalyst recycling was realized via magnetic separation with no special treatment or activation. Additionally, further experiments elucidated the pivotal role of the cobalt and nitrogen elements dispersed in the carbon matrix as well as the hierarchical porosity (micro-/meso-pores) in the catalytic activity and recyclability. Considering the active sites of Co@NC, we envisioned that the Co-N species was the most active site, while other active sites such as Co-O, Co0 species and free N-doped carbon were also present, but demonstrating lower activity or stability in comparison with the Co-N species. Additional mechanistic investigations were carried out to gain more insights into the possible reaction pathways. We found that the aldehyde was identified as a crucial intermediate, and two possible pathways were proposed for this catalytic process. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Carbon | ||
| 463 | |t Vol. 174 |v [P. 284-294] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a cobalt | |
| 610 | 1 | |a nitrogen-doped porous carbon | |
| 610 | 1 | |a heterogeneous catalyst | |
| 610 | 1 | |a dehydrogenation | |
| 610 | 1 | |a alcohol | |
| 610 | 1 | |a carboxylic acid | |
| 610 | 1 | |a кобальт | |
| 610 | 1 | |a углерод | |
| 610 | 1 | |a гетерогенные катализаторы | |
| 610 | 1 | |a дегидрирование | |
| 610 | 1 | |a карбоновые кислоты | |
| 610 | 1 | |a спирты | |
| 701 | 0 | |a Cheng Chen | |
| 701 | 0 | |a Zhi-Qin Wang | |
| 701 | 0 | |a Yan-Yan Gong | |
| 701 | 0 | |a Wang Jichao | |
| 701 | 0 | |a Yuan Ye | |
| 701 | 0 | |a Cheng Hua | |
| 701 | 0 | |a Wei Sang | |
| 701 | 0 | |a Chaemchuen Somboon | |
| 701 | 1 | |a Verpoort |b F. V. K. |c Chemical Engineer |c Professor of Tomsk Polytechnic University, doctor of chemical Sciences |f 1963- |g Frensis Valter Kornelius |3 (RuTPU)RU\TPU\pers\35059 |9 18334 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа химических и биомедицинских технологий (ИШХБМТ) |c (2017- ) |3 (RuTPU)RU\TPU\col\23537 |
| 801 | 0 | |a RU |b 63413507 |c 20220517 |g RCR | |
| 856 | 4 | |u https://doi.org/10.1016/j.carbon.2020.12.040 | |
| 942 | |c CF | ||