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   https://doi.org/10.1039/D0RA09761F  

   Rigby, Maxwell T. ; Natu, Varun ; Sokol, Maxim ; Kelly, Daniel J. ; Hopkinson, David G. ; Zou, Yichao ; Bird, James R. ; Evitts, Lee J. ; Smith, Matt ; Race, Christopher P. ; et al ( January 2021 , RSC Advances)

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   Quaternary MAX phases, (Ta 1−x Ti x ) 3 AlC 2 ( x = 0.4, 0.62, 0.75, 0.91 or 0.95), have been synthesised via pressureless sintering of TaC, TiC, Ti and Al powders. Via chemical etching of the Al layers, (Ta 0.38 Ti 0.62 ) 3 C 2 T z – a new MXene, has also been synthesised. All materials contain an M-layer solid solution of Ta and Ti, with a variable Ta concentration, paving the way for the synthesis of a range of alloyed (Ta,Ti) 3 C 2 T z MXenes with tuneable compositions for a wide range of potential applications. 

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   Weiland, Ashley ; Wei, Kaya ; McCandless, Gregory T. ; Baumbach, Ryan E. ; Chan, Julia Y. ( March 2021 , The Journal of Chemical Physics)
4. Quantum-vibrational-state-selected Integral Cross Sections and Product Branching Ratios for the Ion-molecule Reactions of N 2 + ( X 2 Σ g + ; v + = 0–2) + H 2 O and H 2 O + ( X 2 B 1 : v 1 + v 2 + v 3 + = 000 and 100) + N 2 in the Collision Energy Range of 0.04–10.00 eV

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