Reduced graphene oxide thin layer induced lattice distortion in high crystalline MnO2 nanowires for high-performance sodium- and potassium-ion batteries and capacitors

Carbon ◽  
2021 ◽  
Vol 174 ◽  
pp. 556-566
Author(s):  
Zhongmin Wang ◽  
Xiangdong Yan ◽  
Feng Wang ◽  
Tuzhi Xiong ◽  
M.-Sadeeq Balogun ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Thin Layer ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Lattice Distortion ◽  
Potassium Ion ◽  
Reduced Graphene ◽  
Sodium And Potassium ◽  
Mno2 Nanowires

Low-defect K2Mn[Fe(CN)6]-reduced graphene oxide composite for high-performance potassium-ion batteries

2021 ◽  
Author(s):  
Juan Zhang ◽  
Leqing Deng ◽  
Meiying Feng ◽  
Liang Zeng ◽  
Miao Hu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cathode Material ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Fast Rate ◽  
Rate Capability ◽  
Potassium Ion ◽  
Oxide Composite ◽  
Reduced Graphene ◽  
Excellent Cycling Stability

Here, a low-defect K2Mn[Fe(CN)6]-reduced graphene oxide (KMF-RGO) composite is fabricated, which demonstrates excellent cycling stability, fast rate capability, and exceptional air stability as a cathode material for potassium-ion batteries (KIBs)....

Synthesis and Characterization of Reduced Graphene Oxide

2013 ◽  
Vol 678 ◽  
pp. 56-60 ◽  
Author(s):  
Cherukutty Ramakrishnan Minitha ◽  
Ramasamy Thangavelu Rajendrakumar
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Graphite Oxide ◽  
High Performance ◽  
Structural Changes ◽  
Epoxy Group ◽  
Xrd Analysis ◽  
Si Substrates ◽  
Reduced Graphene ◽  
Reduced Graphite Oxide

Reduced graphene oxide is an excellent candidate for various electronic devices such as high performance gas sensors. In this work Graphene oxide was prepared by oxidizing graphite to form graphite oxide. From XRD analysis the peak around 11.5o confirmed that the oxygen was intercalated into graphite. By using hydrazine hydrate, the epoxy group in graphite oxide was reduced then the solution of reduced graphite oxide (rGO) is exfoliated. Raman spectrum of rGO contains both G band (1580 cm-1), D band (1350 cm-1). The remarkable structural changes reveals that reduction of graphene oxide from the values of ID/IG ratio that increase from 0.727 (GO) to 1.414 (rGO). The exfoliated reduced graphite oxide solution is spin coated on to the SiO2/Si substrates.

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