Cellulose nanofiber‐derived carbon aerogel for advanced room‐temperature sodium–sulfur batteries

نویسندگان

چکیده

Room-temperature sodium–sulfur (RT/Na–S) batteries are regarded as promising large-scale stationary energy storage systems owing to their high density and low cost well the earth-abundant reserves of sodium sulfur. However, diffusion polysulfides sluggish kinetics conversion reactions still major challenges for application. Herein, we developed a powerful functional separator inhibit shuttle effect by coating lightweight three-dimensional cellulose nanofiber-derived carbon aerogel on glass fiber (denoted [email protected]). The hierarchical porous structures, favorable electronic conductivity, interconnected network N,S-codoped endow multifunctional with strong polysulfide anchoring capability fast reaction conversion, which can act barrier layer an expanded current collector increase sulfur utilization. Moreover, hetero-doped N/S sites believed strengthen via chemisorption accelerate redox is confirmed from experimental theoretical results. As result, assembled Na–S coin cells protected] showed reversible capacity (788.8 mAh g−1 at 0.1 C after 100 cycles) superior cycling stability (only 0.059% decay per cycle over 1000 cycles 1 C), thereby demonstrating significant potential application in high-performance RT/Na–S batteries.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries

Carbon nanostructural materials have gained the spotlight as promising anode materials for energy storage; they exhibit unique physico-chemical properties such as large surface area, short Li+ ion diffusion length, and high electrical conductivity, in addition to their long-term stability. However, carbon-nanostructured materials have issues with low areal and volumetric densities for the pract...

متن کامل

Electrocatalytic Oxidation of Cellulose to Gluconate on Carbon Aerogel Supported Gold Nanoparticles Anode in Alkaline Medium

The development of high efficient and low energy consumption approaches for the transformation of cellulose is of high significance for a sustainable production of high value-added feedstocks. Herein, electrocatalytic oxidation technique was employed for the selective conversion of cellulose to gluconate in alkaline medium by using concentrated HNO3 pretreated carbon aerogel (CA) supported Au n...

متن کامل

Elaboration and characterizations of platinum nanoparticles supported on cellulose - based carbon aerogel

Abstract. This work investigates the deposition of Pt nanoparticles onto carbon aerogels (CA), derived from microcrystalline cellulose. Nanoparticles are synthesised via impregnating the CA with H2PtCl6 followed by reduction either under H2 at 300 C or in a basic NaBH4 solution. H2 reduction yields uniform Pt nanoparticles (average diameter < 2nm) dispersed over the CA surface as revealed by Tr...

متن کامل

Thermal Properties of Advanced Aerogel Insulation

Buildings consume too much energy. For example, 16.6% of all the energy used in the United States goes towards just the heating and cooling of buildings. Many governments, organizations, and companies are setting very ambitious goals to reduce their energy use over the next few years. Because the time periods for these goals are much less than the average lifetime of a building, existing buildi...

متن کامل

Highly porous regenerated cellulose hydrogel and aerogel prepared from hydrothermal synthesized cellulose carbamate

Here, a stable derivative of cellulose, called cellulose carbamate (CC), was produced from Kenaf (Hibiscus cannabinus) core pulp (KCP) and urea with the aid of a hydrothermal method. Further investigation was carried out for the amount of nitrogen yielded in CC as different urea concentrations were applied to react with cellulose. The effect of nitrogen concentration of CC on its solubility in ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Carbon energy

سال: 2022

ISSN: ['2096-9570', '2637-9368']

DOI: https://doi.org/10.1002/cey2.203