The electrochemical properties of Co-MOFs with different linkers were studied. However, the manuscript still existed some problems, so it should undergo major revisions before its acceptance.
Comments and suggestions:
(1) Cobalt is suggested to be listed as one of the Keywords.
(2) //Because of its non-coplanar structure, transition metal ions can connect at different places via hydrogen bonding.// How do transition metal ions and carboxyl groups form hydrogen bonds?
(3) Page 9 of 28: 2.1 Materials: //Copper nitrate hexahydrate// was an obvious mistake. //2.2.1 Synthesis of 1, 2, 3, 4-cyclopentane tetracarboxylic acid// was also an obvious mistake. //1,2,3,4-cyclopentane-tetracarboxylic acid showed a longer discharge duration// was wrong. All similar issues should be corrected.
(4) //For three cell measurements, slurry was deposited on each electrode// Maybe, three cell measurement should be changed into “two cell measurement”.
(5) The names of Co-1,2,3,4-cyclopentane tetracarboxylic acid and Co-1,2,4,5-benzene-tetracarboxylic acid were too long and should be abbreviated.
(6) 1, 2, 3, 4-cyclopentane tetracarboxylic acid MOF? 1, 2, 4, 5-benzene-tetracarboxylic acid? Was the above naming appropriate?
(7) //A dual electron transport mechanism is illustrated by the CV curves of both cobalt-based metal-organic frameworks, which show coupled redox peaks at lower scan speeds.// What did the coupled redox peak refer to?
(8) //The geometrical arrangement of these Co based MOFs is responsible for the observed behavior. The linked connections of cobalt with organic ligand enhance and regulate the electron transfer processes, resulting in the observed phenomena in cyclic voltammograms, by creating an environment that is favorable for electron transfer.// The above statement lacked experimental basis. The manuscript did not involve any geometrical arrangement and the electron transfer process.
(9) The colors of the curves in Figures 3c and d were inconsistent and may be confusing.
(10) //As seen in Figure 8(a), the device maintained 98.62% of its initial capacity.// However, its number of cycles was only 1000.
(11) //When comparing their potential, specific capacity, energy density, and power density as electrode materials, Co-1,2,3,4-cyclopentane tetracarboxylic acid outperformed the other, owing to a greater number of redox active sites.// The superior electrochemical performance of Co-1, 2, 3, 4-cyclopentane tetracarboxylic acid should be detailly discussed. Since the SEM and XRD characterization results in this manuscript could not determine the number of redox active sites, the authors are recommended to refer to the following excellent works, Chem. Eng. J., 2023, 467, 143497, Chem. Eng. J., 2023, 470, 144256, ACS Appl. Mater. Interfaces, 2023, 15, 35380, and conduct the test of N2 adsorption-desorption isotherms to obtain the specific surface area so as to unveil the number of redox active sites. In addition, these works are also recommended to be included in the References for balanced citations, providing more valuable and extensive information for the broader Readers.
(12) Highlight should contain important research findings and conclusions, rather than research content. Highlight 2# was The metal-ligand compatibility was studied for electrochemical performance, however, metal-ligand compatibility was not cared in this manuscript.

Accept after Minor revision
Comments:
(1) About Response to Comment #2 from Referee 1: Any bond formed between metal ions and oxygen atoms of carboxylic acid radicals is not a hydrogen bond. Please make a modification to hydrogen bonding.
(2) About Response to Comment #11 from Referee 1: The authors are unwilling to accept the suggestions of the reviewers. Since the recommended works are all not cited, why do the authors' reply claim that they have already cited these works? This should be modified.

Accept.