Raman spectroscopy to study thermal maturity and elastic modulus of kerogen

Nanoscale rock mechanical property changes in heterogeneous coal after water adsorption

Micro-scale fracturing mechanisms in coal induced by adsorption of supercritical CO2

Characterization of nanoscale rockmechanical properties and microstructures of a Chinese sub-bituminous coal

Chemical imaging of coal in micro-scale with Raman mapping technology

Implications of the 3D micro scale coal characteristics along with Raman stress mapping of the scratch tracks


 Introduction of Manganese (Mn) ions (2+ ⇋ 3+ ⇋ 4+) to transition metal oxides proved to be a potential strategy to tailor the redox behavior of these materials for energy storage. We fabricate a lower electronegative element (i.e., Mn) doped copper cobaltite and copper oxide (CuCo2O4/CuO; CCO) heterostructures electrodes through the hydrothermal synthesis route. The ensued electrodes have a more than 2-fold improvement in specific capacity (382.9 C g-1) than the undoped CCO electrode (120.8 C g-1) at 1 A g-1. The all-solid-state asymmetric supercapacitor (ASC) practical device is constructed with higher Mn-doped CCO heterostructures as the positive electrode and activated carbon (AC) as the negative electrode. With a voltage window of 1.5 V, the fabricated ASC device has a high specific energy of 52.6 Wh kg-1 and specific power of 774.3 W kg-1. The long-term cyclic stability of 92% capacity retention after 5000 cycles at the current density of 4 A g-1. Additionally, two ASC devices are series-connected that can power up a red light-emitting diode (LED) display for more than150 s, demonstrating the device's efficient power delivery.

Boosting the Electrochemical Performance of Mn-doped CuCo2O4/CuO Heterostructures for All-Solid-State Asymmetric Battery-type Supercapacitors

Microscale assessment of 3D geomechanical structural characterization of gondawana shales

Estimating stress percolation patterns in hydraulic fractured Gondwana coal using Raman spectroscopy

Multi-stage hydraulic fracture monitoring at the lab scale

G.L. Manjunath

Papers

Implications of the 3D micro scale coal characteristics along with Raman stress mapping of the scratch tracks

Boosting the Electrochemical Performance of Mn-doped CuCo2O4/CuO Heterostructures for All-Solid-State Asymmetric Battery-type Supercapacitors

Microscale assessment of 3D geomechanical structural characterization of gondawana shales

Estimating stress percolation patterns in hydraulic fractured Gondwana coal using Raman spectroscopy

Multi-stage hydraulic fracture monitoring at the lab scale