To　further　develop　the　two-phase　immersion　cooling　technology　with　dielectric　liquids　and　accelerate　their　applications　in　industrial　practices,　a　comparative　experimental　study　on　saturated　pool　boiling　heat　transfer　of　FC-72　on　the　carbon　nanotube　(CNT)　buckypaper　and　the　smooth　indium　tin　oxide　(ITO)　film　is　performed　at　atmospheric　pressure　in　the　present　work.　The　commercially　available　buckypaper　is　selected　as　the　nanostructured　reinforced　surface　because　of　its　low-cost,　highly-scalable　and　mass-producible　advantages.　It　achieves　enhancements　of　CHF　and　maximum　HTC　up　to　74.2　%　and　102　%,　compared　to　the　smooth　ITO　surface.　The　underlying　mechanism　is　well　elucidated　from　the　perspectives　of　surface　characteristics,　capillary　wicking　capability　and　bubble　dynamics.　The　interconnected　nanoporous　network　structure　of　CNT　buckypaper　can　significantly　improve　bubble　dynamics　behavior　and　induce　a　marked　nanoscale　capillary　wicking　effect.　The　outstanding　wickability　can　provide　additional　liquid　replenishment　on　the　boiling　surface,　facilitating　the　rapid　generation　and　departure　of　bubbles　as　well　as　delaying　film　boiling.　Interestingly,　in　terms　of　dielectric　fluid　(FC-72),　it　is　found　that　the　markedly　increased　bubble　departure　frequency　on　the　CNT　buckypaper　surface　primarily　arises　from　a　substantial　reduction　in　the　bubble　waiting　period.　The　present　work　not　only　provides　an　in-depth　insight　into　the　enhanced　pool　boiling　characteristics　of　dielectric　liquids　on　nanostructured　surfaces,　but　also　opens　opportunities　for　the　industrial　applications　of　state-of-the-art　two-phase　immersion　cooling　technology　based　on　nanostructures.　©　2024　Elsevier　Ltd