Carbon coated copper sulfides nanosheets synthesized via directly sulfurizing Metal-Organic Frameworks for lithium batteries

Highly Efficient Nanocarbon Coating Layer on the Nanostructured Copper Sulfide-Metal Organic Framework Derived Carbon for Advanced Sodium-Ion Battery Anode

“…Despite this, the Cu 1.8 S-C/C somewhat retained the MOF-199-derived micropores and the newly-generated mesopores. It should be noted that the Cu 1.8 S-C/C had a higher pore volume and specific surface area compared to the previous reports of Cu x S-C/C [20,30,33]. These results suggest that the Cu 1.8 S-C/C could offer facilitated Na + ion diffusion and reaction, inter-space volume to accommodate volume change, and a large contact area of the electrode/electrolyte interface during cycling process, thus leading to enhanced SIB performance [18].…”

“…The large surface area and porosity of Cu 1.8 S-C/C could promote sodium ion diffusion in the structure and increase the available sites for sodium ion accommodation during the charge and discharge cycle, thereby enhancing SIB performance [30]. To prove the correlation between high porosity and the large surface area of the Cu 1.8 S-C/C and its electrochemical performance, we analyzed the N 2 adsorption and desorption isotherms and pore-size distribution curves of the MOF-199 and Cu 1.8 S-C/C, respectively (see Figure 6).…”

“…Because of MOF’s appealing properties of crystallinity, along with its high surface area and porosity, these materials have been widely implemented into gas sorption/separation [25], toxic gas mitigation [26], catalysis [27], batteries, and supercapacitors [28,29]. Very recently, highly nanoporous MOFs were employed as a sacrificial template to synthesize Cu x S-carbon nanocomposite cathode materials through thermal evaporation of sulfur powders for LIBs [14,30]. Nevertheless, their cycling stability still needs to be improved [12] along with their specific capacity [28].…”

MIL-88A Metal-Organic Framework as a Stable Sulfur-Host Cathode for Long-Cycle Li-S Batteries

“…Various factors affect the performance of Li-S batteries using a certain MOF as a cathodic host material, such as pore structure, adequate particle size, functional organic linkers, and open metal sites in the metal-organic structure [32]. There have been several works reported where MOF materials are included as components that constitute Li-S batteries as a cathode [33,34], or as a separator [35][36][37]. In most cases, MOF derivatives are used, or the incorporation of additives into the pristine MOF is carried out to improve the conductivity of these energy systems.…”

Copper Sulfide (CuxS) Nanowire‐in‐Carbon Composites Formed from Direct Sulfurization of the Metal‐Organic Framework HKUST‐1 and Their Use as Li‐Ion Battery Cathodes

“…By simply heating MOFs in the presence of S in an inert atmosphere, nanostructured metal sulfide compounds can be formed. One of the very first permanently porous MOFs ever synthesized, Cu‐BTC {[Cu 3 (C 9 H 3 O 6 ) 2 (H 2 O) 3 ]} n , commonly known as HKUST‐1, has been widely studied for multiple applications and has been used to synthesize single phase Cu 1.96 S nanosheets/particles within a conductive carbon matrix for an electrochemical capacitor and as an LIB cathode material . The composites were synthesized by directly mixing sulfur with HKUST‐1 prior to heating temperatures ranging from 350 to 650 °C under pressure.…”