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Cobalt Oxide on N-Doped Carbon for 1-Butene Oligomerization to Produce Linear Octenes
ACS Catalysis ( IF 11.3 ) Pub Date : 2017-10-02 00:00:00 , DOI: 10.1021/acscatal.7b01482 Dongting Zhao 1 , Zhuoran Xu 1 , Joseph P. Chada 1 , Carlos A. Carrero 2 , Devon C. Rosenfeld 3 , Jessica L. Rogers 3 , Ive Hermans 4 , George W. Huber 1
ACS Catalysis ( IF 11.3 ) Pub Date : 2017-10-02 00:00:00 , DOI: 10.1021/acscatal.7b01482 Dongting Zhao 1 , Zhuoran Xu 1 , Joseph P. Chada 1 , Carlos A. Carrero 2 , Devon C. Rosenfeld 3 , Jessica L. Rogers 3 , Ive Hermans 4 , George W. Huber 1
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Cobalt oxide supported on N-doped carbon catalysts were investigated for 1-butene oligomerization. The materials were synthesized by treating activated carbon with nitric acid and subsequently with NH3 at 200, 400, 600, and 800 °C, followed by impregnation with cobalt. The 1-butene oligomerization selectivity increased with ammonia treatment temperature of the carbon support. The oligomerization selectivity of cobalt oxide on N-doped carbon synthesized at 800 °C (800A-CoOx/N-C) is 2.6 times higher than previously reported cobalt oxide on N-doped carbon synthesized with NH4OH (2A-CoOx/N-C). Over 70% of the butene dimers were linear C8 olefins for all catalysts. The oligomerization selectivity increased with 1-butene conversion. The catalysts were characterized by elemental analysis, N2 adsorption, X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS), and X-ray photoelectron spectroscopy (XPS). The nitrogen content of the catalysts increases with ammonia treatment temperature as confirmed by elemental analysis. The surface content of pyridinic nitrogen with a binding energy of 398.4 ± 0.1 eV increased with ammonia treatment temperature as evidenced by deconvolution of N 1s XPS spectra.
中文翻译：
N掺杂碳上的氧化钴用于1-丁烯低聚生成线性辛烯
研究了负载在N掺杂碳催化剂上的氧化钴的1-丁烯低聚反应。通过用硝酸和随后在200、400、600和800℃下用NH 3处理活性炭，然后用钴浸渍来合成材料。1-丁烯低聚选择性随着碳载体的氨处理温度而增加。在800°C（800A-CoOx / NC）合成的N掺杂碳上，氧化钴的低聚选择性比以前报道的用NH 4 OH（2A-CoOx / NC）合成的N掺杂碳上的氧化钴高2.6倍。对于所有催化剂，超过70％的丁烯二聚体是直链C 8烯烃。低聚选择性随着1-丁烯转化而增加。用元素分析法对催化剂进行了表征，N2吸附，X射线衍射（XRD），X射线吸收光谱（XAS）和X射线光电子能谱（XPS）。元素分析证实，催化剂的氮含量随氨处理温度的升高而增加。N 1s XPS光谱的反卷积证明，结合能为398.4±0.1 eV的吡啶二氮的表面含量随氨处理温度的增加而增加。
更新日期：2017-10-03
中文翻译：
N掺杂碳上的氧化钴用于1-丁烯低聚生成线性辛烯
研究了负载在N掺杂碳催化剂上的氧化钴的1-丁烯低聚反应。通过用硝酸和随后在200、400、600和800℃下用NH 3处理活性炭，然后用钴浸渍来合成材料。1-丁烯低聚选择性随着碳载体的氨处理温度而增加。在800°C（800A-CoOx / NC）合成的N掺杂碳上，氧化钴的低聚选择性比以前报道的用NH 4 OH（2A-CoOx / NC）合成的N掺杂碳上的氧化钴高2.6倍。对于所有催化剂，超过70％的丁烯二聚体是直链C 8烯烃。低聚选择性随着1-丁烯转化而增加。用元素分析法对催化剂进行了表征，N2吸附，X射线衍射（XRD），X射线吸收光谱（XAS）和X射线光电子能谱（XPS）。元素分析证实，催化剂的氮含量随氨处理温度的升高而增加。N 1s XPS光谱的反卷积证明，结合能为398.4±0.1 eV的吡啶二氮的表面含量随氨处理温度的增加而增加。
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