Insight Into How Ni/Al Ratio Impacts the Properties of Ni-Al LDH ACS_AMI AFM atomicforcemicroscopy
By Bhavna KavetiSep 28 2022Reviewed by Susha Cheriyedath, M.Sc. Nickel-aluminum layered double hydroxides have layered structures and tunable transition metal charges, and are applied in conversion and energy storage devices. The molar ratio of Ni/Al in NiAl-LDH significantly modifies the structural, interfacial, and electrochemical properties, improving reaction efficiency and kinetics.
The rearrangement of Al3+ and Ni2+ ions and Ni/Al molar ratio significantly influenced the microcrystalline structure of Ni-Al LDH nanosheets. Moreover, the area with dissolved Ni-Al-n LDH nanosheets showed a greater Young’s modulus value than the undissolved area. Nevertheless, the experimental conditions of in situ electrochemical atomic force microscopy must be carefully fixed to achieve reproducible electrochemical measurements and images of good quality.
Thus, in the present study, morphological evolutions and changes in the nanomechanical properties of three Ni-Al-n LDH nanosheets were investigated during potential cycling utilizing the in situ electrochemical atomic force microscopy.
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