Grafting of nano-Ag particles on -SO3--coated nanopolymers for promoting methane hydrate formation

doi:10.1039/c7ta02830j

QIBEBT-IR > 工业生物燃气研究组

	Grafting of nano-Ag particles on -SO3--coated nanopolymers for promoting methane hydrate formation
	Wang, Fei; Guo, Gang; Luo, Sheng-Jun; Guo, Rong-Bo
	2017-09-21
发表期刊	JOURNAL OF MATERIALS CHEMISTRY A
ISSN	2050-7488
卷号	5 期号:35 页码:18486-18493
摘要	Sodium dodecyl sulfate (SDS) has been reported to be the most efficient promoter for hydrate-based natural gas storage and transportation, however, foam generation during hydrate dissociation seriously affects its application. Nano-metal particles have also been demonstrated to be efficient promoters, nevertheless their poor stability is a serious problem. In this work, we first fixed -SO3- groups (similar to the hydrophilic group of SDS) covalently on polystyrene through soap-free emulsion polymerization to synthesize -SO3--coated nanopolymers, and by tuning their morphology they existed as amorphous polystyrene macromolecules (-SO3-@PSMM) or uniform polystyrene nanospheres (-SO3-@PSNS). Afterwards, we grafted nano-Ag particles with the size of 2-5 nm on the -SO3--coated nanopolymers through electrostatic adsorption and in situ reduction to prepare Ag&-SO3--coated nanopolymers (denoted as Ag&-SO3-@PSMM and Ag&-SO3-@PSNS), which were then used for the first time to promote methane hydrate formation. When 0.5 mmol L-1 amorphous Ag&-SO3-@PSMM was used at an initial pressure of 6 MPa and temperature of 275.15 K, the induction period was 32.2 +/- 7.9-60.8 +/- 14.2 min, the growth period was 108.8 +/- 8.2-177.1 +/- 38.9 min and the methane storage capacity reached 143.9 +/- 3.7-145.2 +/- 1.2 v/v, whereas when the spherical Ag&-SO3-@PSNS was used at 0.5 mmol L +/- 1, the induction period and growth period were 17.8 +/- 2.8-38.5 +/- 8.0 and 39.6 +/- 2.8-42.1 +/- 0.9 min, respectively; and the storage capacity reached 149.3 +/- 1.2-151.3 +/- 3.0 v/v, indicating that Ag&-SO3-@PSNS were much better promoters compared with Ag&-SO3-@PSMM. Moreover, Ag&-SO3-@PSNS exhibited excellent recycling performance for 10 cycles of methane hydrate formation-dissociation. To sum up, the Ag&-SO3--coated nano-promoters developed in this work showed significant potential in achieving the industrial application of hydrate-based natural gas storage and transportation.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1039/c7ta02830j
关键词[WOS]	GAS HYDRATE ; DISSOCIATION ; SURFACTANTS ; STORAGE ; CAPACITY
收录类别	SCI
语种	英语
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
项目资助者	China Postdoctoral Science Foundation(2017M612370)
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000410597200017
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/10460
专题	工业生物燃气研究组
通讯作者	Luo, Sheng-Jun; Guo, Rong-Bo
作者单位	Chinese Acad Sci, Shandong Ind Engn Lab Biogas Prod & Utilizat, Shandong Prov Key Lab Synthet Biol, Key Lab Biofuels,Qingdao Inst Bioenergy & Bioproc, Qingdao 266101, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Fei,Guo, Gang,Luo, Sheng-Jun,et al. Grafting of nano-Ag particles on -SO3--coated nanopolymers for promoting methane hydrate formation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(35):18486-18493.
APA	Wang, Fei,Guo, Gang,Luo, Sheng-Jun,&Guo, Rong-Bo.(2017).Grafting of nano-Ag particles on -SO3--coated nanopolymers for promoting methane hydrate formation.JOURNAL OF MATERIALS CHEMISTRY A,5(35),18486-18493.
MLA	Wang, Fei,et al."Grafting of nano-Ag particles on -SO3--coated nanopolymers for promoting methane hydrate formation".JOURNAL OF MATERIALS CHEMISTRY A 5.35(2017):18486-18493.