  This thesis is devoted to the study of Lie bialgebra and Hopf algebra
structures related to certain versions of non-commutative geometry constructed
on infinite-dimensional Lie algebras that arise in the context of asymptotic
symmetries of spacetime. We prove a number of theorems about cohomology groups
that aid the classification of the Lie bialgebras and explicitly construct and
analyze selected Hopf algebras. Particularly interesting behavior was found by
studying the contraction limit of spacetimes with cosmological constant and the
inclusion of central charges on the level of Lie bialgebras and Hopf algebras.
Phenomenological consequences, like deformed in-vacuo dispersion relations,
known from the study of $\kappa$-Poincar\'e quantum groups, are investigated.
Furthermore, we examine how a new proposal in the context of the black hole
information loss paradox and counterarguments against it are affected.
