In　the　present　work,　we　introduce　a　dual　carbon　accommodated　structure　in　which　germanium　nanoparticles　are　encapsulated　into　an　ordered　mesoporous　carbon　matrix　(Ge-CMK)　and　further　coated　with　an　amorphous　carbon　layer　(Ge@C-CMK)　through　a　nano-casting　route　followed　by　chemical　vapor　deposition　(CVD)　treatment.　In　the　resultant　Ge@C-CMK　composite,　the　unique　lane-like　pore　structure　that　cooperates　with　the　amorphous　carbon　surface　can　not　only　mitigate　the　volume　expansion　of　germanium　particles,　but　also　improve　the　electrical　conductivity　of　germanium　as　well　as　facilitate　Na./K.　diffusion.　When　employed　as　the　anode　of　sodium-ion　batteries,　the　Ge@C-CMK　electrode　exhibits　stable　capacity　as　well　as　long-term　cycling　stability　(a　stable　capacity　of　176　mAh　g(-1)　at　1　A　g(-1)　after　5000　cycles).　Furthermore,　it　also　delivers　a　reversible　capacity　when　used　as　the　anode　of　potassium-ion　batteries.　This　demonstrates　that　the　Ge@C-CMK　electrode　possesses　promising　application　potential　as　an　alternative　anode　in　sodium　and　potassium　ion　storage　applications.　(C)　2020　Elsevier　Inc.　All　rights　reserved.