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    					Fe2Mo3O8 nanoparticles self-assembling 3D mesoporous hollow spheres toward superior lithium storage properties  | 
  					 
  					  										
						Lifeng Zhang1,2( ), Yifei Song1, Weiping Wu2( ), Robert Bradley3,4,5, Yue Hu1, Yi Liu1, Shouwu Guo1,6( ) | 
					 
															
						1. School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China 2. Department of Electrical and Electronic Engineering, School of Mathematics, Computer Science and Engineering, City, University of London, London, EC1V 0HB, UK 3. Department of Materials, University of Oxford, Oxford, OX1 3PH, UK 4. MatSurf Technology Ltd., The Old Stables Marion Lodge, Cumbria, CA10 1NW, UK 5. School of Energy Resources, University of Wyoming, Laramie, WY 82071, USA 6. School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China | 
					 
										
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													     		                            						                            																	    Abstract  Unique self-assembled iron(II) molybdenum(IV) oxide (Fe2Mo3O8) mesoporous hollow spheres have been facilely constructed via the bubble-template-assisted hydrothermal synthesis method combined with simple calcination. The compact assembly of small nanoparticles on the surface of the hollow spheres not only provides more active sites for the Fe2Mo3O8, but also benefits the stability of the hollow structure, and thus improved the lithium storage properties of Fe2Mo3O8. The Fe2Mo3O8 mesoporous hollow spheres exhibit high initial discharge and charge capacities of 1189 and 997 mA∙h∙g−1 respectively, as well as good long-term cycling stability (866 mA∙h∙g−1 over 70 cycles) when used as a lithium-ion battery anode. This feasible material synthesis strategy will inspire the variation of structural design in other ternary metal molybdates. 
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															| Keywords 
																																																				molybdates  
																		  																																				Fe2Mo3O8  
																		  																																				hollow spheres  
																		  																																				lithium ion batteries  
																		  																																				anodes  
																																			  
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																																Corresponding Author(s):
																Lifeng Zhang,Weiping Wu,Shouwu Guo   
																													     		
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																															Just Accepted Date: 28 September 2020  
																																														Online First Date: 17 November 2020   
																																														Issue Date: 12 January 2021
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