# Effect of MXene Nanosheet Sticking on Supercapacitor Device Performance
## 5 Conclusions
### Recommendations for Future Research  
Once the above-described obstacles are overcome, future research endeavors in the field of application of MXenes in supercapacitors could focus on the following areas:  
Novel MXene compositions: Exploration of novel MXene compositions with tailored properties to further enhance specific capacitance, rate capability, and stability. This may involve synthesizing new MXene derivatives or composites that exhibit improved electrochemical performance.  
Scalable synthesis methods: continued development of scalable, cost-effective synthesis methods for producing high-quality MXene materials suitable for large-scale supercapacitor applications, with a focus on energy and cost efficiency.  
Understanding interfaces and electrode-electrolyte interactions: in-depth investigation of MXene-electrolyte interactions and interfaces to improve charge storage mechanisms, electrochemical stability, and ion transport within supercapacitor devices.  
Advanced electrode architectures: development of advanced electrode architectures and scalable manufacturing techniques to optimize the utilization of MXene materials in supercapacitors, potentially enhancing energy density and load-bearing capabilities.  
Flexible and wearable supercapacitors: research into flexible and wearable supercapacitors based on MXenes, considering the design of conformal, stretchable, and lightweight energy storage devices for emerging electronic and wearable technologies.  
Environmental impact assessment: investigation into the environmental impact and sustainable practices related to MXene synthesis, processing, and end-of-life recycling, aimed at developing environmentally friendly strategies for MXene-based supercapacitors.  
Integrated energy storage systems: research efforts could focus on integrating MXene-based supercapacitors with complementary energy harvesting systems, such as piezoelectric, thermoelectric, or photoelectric systems, to create multifunctional energy storage solutions.  
Real-world performance and durability studies: comprehensive performance and durability studies under real-world operating conditions to assess long-term stability, cycle life, and reliability of MXene-based supercapacitors for various end-use applications.  
**Author Contributions:** Conceptualization, M.A.; methodology, M.A., N.K. and I.P.; formal analysis, M.A. and N.K.; resources, M.A., N.K. and I.P.; writing--original draft preparation, M.A. and N.K.; writing--review and editing, N.K. and I.P.; visualization, M.A.; project administration, I.P.; funding acquisition, I.P. All authors have read and agreed to the published version of the manuscript.  
**Funding:** This study is financed by the European Union-NextGenerationEU, through the National Recovery and Resilience Plan of the Republic of Bulgaria, project No BG-RRP-2.004-0005-C03.  
**Institutional Review Board Statement:** Not applicable.  
**Informed Consent Statement:** Not applicable.  
**Data Availability Statement:** Not applicable.  
**Conflicts of Interest:** The authors declare no conflicts of interest.