Comparison Cu₇S₄ hollow nanotubes electrode with previously reported Cu_xS-based electrodes for non-enzymatic glucose defection from literature.

Electrode	Linear range (μmol L−1)	LOD (μmol L−1)	Sensitivity (μA mM−1 cm−2)	Ref.
Cu/Cu7S4 hollow nanotubes	0.5–100	0.127	1058.33	This work
Cu2S nanoparticles	10–3000	1.3	61.67	55
Au-CuxS/3DCF	1.98–976.56	7.62	59	56
Cu@CuS	2–8100	0.10	361.58	53
Cu2S nanocrystal-DWCNT/GCE	0.005–1	1	280	57
S-rGO/CuS	0.0001–3880	0.032	429.4	51
CuS nanosphere-like	1.0–1200	0.015	117.3	58
Cu2S/MWCNT	0.0010–1000	1.0	0.075	59