The texture evolution of g-C3N4 nanosheets supported Fe catalyst during Fischer-Tropsch synthesis

doi:10.1016/j.molcata.2016.12.011

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	The texture evolution of g-C3N4 nanosheets supported Fe catalyst during Fischer-Tropsch synthesis
	Chen, Z ; Zhang, J ; Zheng, SK ; Ding, J ; Sun, JQ ; Dong, M ; Abbas, M ; Chen, YL ; Jiang, Z ; Chen, JG
	2018
发表期刊	MOLECULAR CATALYSIS
ISSN	2468-8231
卷号	444 页码:90-99
文章类型	期刊论文
摘要	Graphitic carbon nitride (GCN) nanosheets decorated with iron nanoparticles (Fe/g-C3N4) were synthesized and used as catalysts in FTS. The crystal structure and morphology of Fe/g-C3N4 were characterized with XRD, FT-IR, HRTEM, EXAFS, BET, and its texture evolution during Fischer-Tropsch synthesis was monitored. It was shown that there were two types of iron species in Fe/GCN, i.e., "dissolved iron", in which irons dissolved into g-C3N4 matrix as single atoms, and formed mainly at low Fe loadings. In contrast, when the loading exceeded the dissolved saturation, the irons would coordinate with (-N N-)(2-) to form the second type of iron species, Fe(NCN) like species. The "dissolved iron" was more difficult to thermally decompose and convert into iron carbide than Fe(NCN) like species. Such a slow transformation gave birth to unique induction period for low loading Fe catalysts. Moreover, the N-containing bases or defects of g-C3N4 might play a critical role in enhancing O/P ratio. As a result, g-C3N4 supported 40 wt% Fe sample exhibited highest activity and C2(=)-C4(=) selectivity. Besides, the g-C3N4 possessed a "structure memory effect" analogous to hydrotalcite
关键词	Graphitic Carbon Nitride Ray-absorption-spectroscopy Visible-light Iron Catalysts Photocatalytic Performance Electrocatalytic Reduction Magnetite Nanoparticles Facile Fabrication Low-temperatures Nanotubes
DOI	10.1016/j.molcata.2016.12.011
收录类别	SCI
语种	英语
WOS记录号	WOS:000418985200011
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/29183
专题	中科院上海应用物理研究所2011-2018年
作者单位	1.Chen, Z 2.Zhang, J 3.Zheng, SK 4.Ding, J 5.Sun, JQ 6.Dong, M 7.Abbas, M 8.Chen, YL 9.Jiang, Z 10.Chen, JG
推荐引用方式 GB/T 7714	Chen, Z,Zhang, J,Zheng, SK,et al. The texture evolution of g-C3N4 nanosheets supported Fe catalyst during Fischer-Tropsch synthesis[J]. MOLECULAR CATALYSIS,2018,444:90-99.
APA	Chen, Z.,Zhang, J.,Zheng, SK.,Ding, J.,Sun, JQ.,...&Chen, JG.(2018).The texture evolution of g-C3N4 nanosheets supported Fe catalyst during Fischer-Tropsch synthesis.MOLECULAR CATALYSIS,444,90-99.
MLA	Chen, Z,et al."The texture evolution of g-C3N4 nanosheets supported Fe catalyst during Fischer-Tropsch synthesis".MOLECULAR CATALYSIS 444(2018):90-99.

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