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The extensive screening of metal electrodes led to the discovery of the novel molybdenum anode, which can boost power generation in microbial fuel cells.
Because it has an intermediate atomic number (Z=42) and produces characteristic x-rays with energies suitable for this purpose, molybdenum is also frequently used as the target material for mammography anodes.
Flame oxidation, heat treatment, and electrochemical oxidation were used to make oxidized metal anodes.
Air–cathode single-chambered MFCs were used to conduct a comprehensive evaluation of the selected anodes. Results In the screening test, flame-oxidized and Sn-based anodes had the highest average maximum power densities, followed by electrochemically oxidized Mo anodes that had not been treated.
For further analysis, the FO-W and Mo anodes that had not been treated were chosen. Analyses using x-rays revealed that the Mo anode’s surface naturally oxidized in the presence of air, resulting in the formation of a layer of MoO3, a well-known oxidation catalyst.
The Mo anode was used in MFCs to achieve a higher maximum power density than the FO-W anode.
High-throughput sequencing of the rRNA gene revealed that both biofilms on the Mo and FO-W anodes contained a significant amount of Geobacter.
Conclusions Mo, W, Fe, and Sn are useful MFC anode materials, as demonstrated by the screening test.
In MFCs, the Mo anode was found to be a high-performance electrode with structural simplicity and long-term stability through in-depth analyses.
Simply forming Mo materials into the desired shapes is all that is required to prepare the anode. The anode, which is necessary for actual MFC applications, could be prepared on a large scale with the help of these properties.
Geobacter might also play a role in Earth’s Mo and W cycles, according to this study.
The Global molybdenum anode market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
A two-dimensional molybdenum anode disulfide hybrid nanosheet anode for lithium-ion batteries is produced in SITU.
To create 2D MoS2/graphene hybrid electrodes for lithium-ion batteries, a solvent-free, low-cost, high-yield, and scalable single-step ball milling method is developed.
The hybrid electrodes that were produced are made up of a large number of randomly distributed nanosheets made of MoS2 and graphene, as demonstrated by electron microscopy.
The MoS2/graphene hybrid anodes have high reversible capacities and excellent cycling stability (40 h for MoS2/graphene).
553 Mama h g−1 for MoS2/graphene (20 h); 342 mA h g-1 for MoS2/graphene (10 h) at a high current rate of 250 mA g-1 after 100 cycles, whereas the pristine MoS2 electrode retains 37 mA h g-1 at a current of 250 mA g-1 after 100 cycles.
MoS2’s electrochemical performance is significantly enhanced by the addition of graphene. In order to prevent capacity fading issues with the MoS2 anode in lithium-ion batteries, this work emphasizes the significance of the construction of the 2D MoS2/graphene hybrid structure.
The fact that the majority of production methods produce a small quantity (milligrams), which is drastically different from existing industrial processes, is a common issue when preparing electrodes based on MoS2.
The materials production process is important because, regardless of how wonderful the electrode materials are, commercial use of them would be impossible if the production method could not be adopted by industry.
By in situ generation of graphene and 2D MoS2 using bulk graphite and bulk MoS2 as starting materials, we present a straightforward and scalable ball-milling method for the production of a large quantity of MoS2/graphene hybrid nanosheet electrodes.
It is anticipated that the MoS2/graphene heterointerface structure will improve electrochemical properties by increasing electronic conductivity and storing more Li+.
When utilized as an anode material in LIBs, the MoS2/graphene hybrid nanosheets outperform the single system of MoS2 or graphite in terms of electrochemical performance.
