1. 横向课题，水伏发电器件关键技术开发，主持，2024-2026；

2. 横向课题，复合涂层附着力仿真计算分析，主持，2025-2027；

3. 博士后科学基金面上资助，铁电极化对复合纳米纤维表面摩擦电荷的增强机理研究（2019M663645），主持，2019-2022；

4. 陕西省自然科学基础研究项目，半导体负载Janus结构纳米纤维膜的可控制备及其光热性能研究，主持，2020-2021；

5. 西北工业大学博士论文创新基金，摩擦纳米发电机材料设计与应用特性研究（CX201806），主持，2018-2019；

6. 国家自然科学基金面上项目，铋基无铅压电材料构筑及其能量转化收集特性研究（51672220），主研，2017-2020；

7. ***用高性能***材料（JPPT-115-5-1831），军工项目，主研，2014-2016。

发表论文

1. H. Wu, X. Ren, W. Hu, et al. Permittivity controllable CNTs/PI composite aerogels with oriented microchannels for advanced microwave absorption and thermal isolation.Carbon,  233(2025) 119883.

2. X. Ren, L.Huang, H. Yuan, et al. Sodium alginate derived SiC-carbon composite aerogel for effective microwave absorption. Journal of Magnetism and Magnetic Materials, 596 (2024): 171970.

3. S. Cui, X. Ren*, H. Yin, et al. One-step electrodeposited nickel-cobalt-layered double hydroxide nanosheets with anion intercalation for supercapacitor. Journal of Energy Storage, 85 (2024) 111092.

4. X. Wu, Y. Lu, X. Ren (共同一作), et al. Interfacial Solar Evaporation: From Fundamental Research to Applications. Advanced Materials, (2024) 2313090.

5. Y. Gong,   W. Wang, * X. Che,  Y. Su,   Y. Jia, X. Ren* (共同通讯)  and  Huiqing Fan.Three dimensional polydimethylsiloxane/barium titanate elastomer networks for piezoelectric energy harvesters. Journal of Materials Chemistry A, 2024,12, 24565-24573.

6. H. Yuan, H. Wu, X. Ren*, et al. Preparation of BT@ PS composite nanofibers via recycling waste polystyrene foams for triboelectric nanogenerator. Journal of Materials Science: Materials in Electronics, 35 (2024) 360.

7. D. Gui, X. Ren*. Investigation on electromagnetic properties of La–Al co-doped Co2W hexagonal ferrites for microwave absorption. Ceramics International,49 (2023) :14079-14089.

8. X. Ren*, S. Cui, J. Guan, et al. PAN@PPy nanofibrous membrane with core-sheath structure for solar water evaporation. Materials Letters, 313 (2022): 131807.

9. X. Ren*, J. Wang, H. Yin, et al. Hierarchical CoFe2O4@PPy hollow nanocubes with enhanced microwave absorption. Applied Surface Science, 575 (2022): 151752.

10. X. Ren⁎, X. Xiang, H. Yin*,  et al. All-yarn triboelectric nanogenerator and supercapacitor based self-charging power cloth for wearable applications. Nanotechnology, 32 (2021):315404.

11. X. Pu, X. Ren⁎, H. Yin*,  et al. One-step electrodeposition strategy for growing nickel cobalt hydroxysulfide nanosheets for supercapacitor application.Journal of Alloys and Compounds, 865 (2021):158736.

12. X. Ren*, Xi. Pu, H. Yin*,  et al. Fabrication of hierarchical PANI@ W-type barium hexaferrite composites for highly efficent microwave absorption. Ceramics International ,47 (2021) :12122-12129.

13. L. Chang, X. Ren*, H. Yin*,  et al. The tunable microwave absorption properties of the Co2+–Zr4+ co-substituted Co2W-type hexagonal ferrites. Journal of Materials Science: Materials in Electronics, 31 (2020): 20908–20918.

14. X. Ren, H. Yin, Y. Tang, et al. The large electro-strain in BNKT-BST-100xTa lead-free ceramics. Ceramics International ,46 (2020) :1876–1882.

15.  X. Ren, H. Fan, C. Wang, et al. Wind energy harvester based on coaxial rotatory freestanding triboelectric nanogenerators for self-powered water splitting. Nano Energy, 50 (2018):562-570.

16. X. Ren, H. Fan, C. Wang, et al. Magnetic force driven noncontact electromagnetic-triboelectric hybrid nanogenerator for scavenging biomechanical energy. Nano Energy, 35 (2017):233-241.

17. X. Ren, H. Fan, Y. Zhao, et al. Flexible lead-free BiFeO3/PDMS-based nanogenerator as piezoelectric energy harvester. ACS Applied Materials & Interfaces, 8 (2016): 26190-26197.

18. X. Ren, H. Fan, J. Ma, et al. A triboelectric nanogenerators based on fluorinated wasted rubber powder for self-powering application. ACS sustainable Chemistry & Engineering, 5 (2017): 1957-1964.

19. X. Ren, H. Fan, J. Ma, et al. Hierarchical Co3O4/PANI hollow nanocages: Synthesis and application for electrode materials of supercapacitor. Applied Surface Science, 441 (2018): 194-203.

20. X. Ren, H. Fan, C. Wang, et al. Coaxial Rotatory-Freestanding Triboelectric Nanogenerator for Effective Energy Scavenging from Wind. Smart Materials and Structures, 27 (2018): 065016.

21. X. Ren, H. Fan, Y. Cheng. Microwave absorption properties of double-layer absorber based on carbonyl iron/barium hexaferrite composites. Applied Physics A, 122 (2016): 506-513.

22. X. Ren, Y. Cheng. Electromagnetic and microwave absorbing properties of carbonyl iron/BaTiO3 composite absorber for matched load of isolator. Journal of Magnetism and Magnetic Materials, 393 (2015):293-296.

23. X. Ren, G. Xu. Electromagnetic and microwave absorbing properties of NiCoZn-ferrites doped with La3+. Journal of Magnetism and Magnetic Materials, 354 (2014): 44-48.

发明专利

1. 樊慧庆，任小虎，李哲新，魏新颖，一种非接触式可穿戴电磁-摩擦混合纳米发电装置及制备方法，发明专利，专利号：ZL201810306352.8；

2. 樊慧庆，任小虎，李哲新，魏新颖，基于废弃氟化橡胶粉末的自供电纳米摩擦电发电机的制备方法，发明专利，专利号：ZL201810306351.8；

3. 樊慧庆，张明昌，潘倩，任小虎，马龙涛，付可，全固态非对称电容器的制备方法，发明专利，专利号：ZL201710639326. 2；

4.  樊慧庆，张明昌，潘倩，任小虎，彭海军，赵楠，Co3O4@CoWO4纳米线阵列核壳结构材料的制备方法及其应用，发明专利，专利号：ZL201710639341.7。