Data underlying research for A study on electrokinetic effects of spacers in ED using a segmented electrode stack
doi: 10.4121/e54a1b44-0a39-4c23-bc68-656a893bf613
The boundary layer thickness within the fluid channels strongly determines the performance of electrodialysis (ED) processes since it controls the rate of ion transport. Reducing the boundary layer thickness through more efficient mixing allows for reducing the energy input to achieve the same current or higher currents for the same driving potential. In our previous work, we studied the electrokinetic effects of spacers within a lab-scale ED stack by using polyelectrolyte coated spacers that create an electro-osmotic mixing effect that affects the boundary layer near the limiting current regime. In this work, we use a segmented electrode stack to explore how spacer-induced electrokinetic effects impact the evolution of the boundary layer along the length of a stack operating under constant driving potential. By using the segmented electrode system, we are able to show clear differences in the distribution of current (densities) along the stack length between the case with polyelectrolyte-coated spacers and non-coated spacers. Our results show that the use of surface-charged spacers in particular leads to higher current densities in highly ion-depleted regions of the stack (i.e. farther towards the stack outflow) and we attribute this current density increase to increased electro-osmotic mixing within the boundary layer. Additionally, we quantify the difference in spacer performance between the uncoated and coated case using a simple empirical formulation for current density distribution along the stack length.
- 2023-09-08 first online, published, posted
DATA
- 24,974 bytesMD5:
9dabd2d5a1298fc34953503e863b74a8
2V.eps - 19,722 bytesMD5:
df023f6ad435580435f281bc6aa3878a
2V.fig - 228,246 bytesMD5:
e919641efad74b85f06f971cf7a18680
2V.jpg - 255,940 bytesMD5:
70f8f4bb36f433d214a9c784bc06578c
2V.xlsm - 37,963 bytesMD5:
fbee60de2e283d9cdccd32a5097bc4fe
2V_compare.jpg - 27,966 bytesMD5:
7a439e445e0cdf077c06222b092b9ff4
2Vc.fig - 37,963 bytesMD5:
fbee60de2e283d9cdccd32a5097bc4fe
2Vc.jpg - 19,731 bytesMD5:
9c240237c09e9f0f88de8f25541097a3
2VPSS.fig - 453,519 bytesMD5:
1c9ef9ee475e1409b759a0248e0b040e
4V.csv - 24,951 bytesMD5:
06bd4dfbe0215cbc312930bed7c5f372
4V.eps - 19,747 bytesMD5:
11f97b97f4ffdfe6cb3880fdb3c7e628
4V.fig - 120,581 bytesMD5:
de9a5b79d45d187236247c287c9706c7
4V.jpg - 1,368,793 bytesMD5:
b0d8dd98ba66b391cd497c398b5eb614
4V.tdms - 1,226,329 bytesMD5:
d887899b6ba50652f8fa6af56bb1a791
4V.tdms_index - 246,939 bytesMD5:
eac6c719feffce771440935e9768117c
4V.xlsx - 46,075 bytesMD5:
673bd658af33545e5b182712e9800d6a
4V_compare.jpg - 28,117 bytesMD5:
c3cd28fc8648dda702e4c066a006c207
4Vc.fig - 19,744 bytesMD5:
e3c736f61b85786b9a76b5cb2aad3287
4VPSS.fig - 497,662 bytesMD5:
3caf2713aab650960fae8d7c67fd68e1
6V.csv - 1,499,737 bytesMD5:
1280135cbdbe2d16e3761c9eefa195aa
6V.csv.tdms - 24,671 bytesMD5:
da2f596679a744dffe12e65f9c2a4e01
6V.eps - 19,749 bytesMD5:
dbdcb45b5e12e2c8144f8fb810f3bb75
6V.fig - 128,013 bytesMD5:
e9cb7540f75ff829e10a215e12459dc8
6V.jpg - 263,705 bytesMD5:
2da78a9b8c10c6e6388b89b19835cf4c
6V.xlsx - 28,199 bytesMD5:
b653f4c4445b6363c745415083fb501b
6V_compare.fig - 49,318 bytesMD5:
452714fd06f504abac6647c0102f83ac
6V_compare.jpg - 19,743 bytesMD5:
83eb5434e9a50cf0a677da52892eb57a
6VPSS.fig - 443,730 bytesMD5:
d110afbc3dcd2e11aee308fe2cdbc12b
8V.csv - 27,188 bytesMD5:
7a4c445be62e882a7a9366614f9f549c
8V.eps - 19,749 bytesMD5:
73fe7ad5070f6bebbf10217767a8fa7a
8V.fig - 77,514 bytesMD5:
36fe84a5e240b798df34573b445ab909
8V.jpg - 1,343,545 bytesMD5:
1566aab53faf8dbd8038d75cb51e7406
8V.tdms - 1,203,769 bytesMD5:
9b5bf6ec89fb85c7f212ba28a6502444
8V.tdms_index - 218,414 bytesMD5:
db46c09986214ca056511b218ec1e84e
8V.xlsx - 28,182 bytesMD5:
e8a9bd113ae005239673bf3c20f65667
8V_compare.fig - 48,684 bytesMD5:
4327d4f7cf607506ffc40a28cefa709e
8V_compare.jpg - 36,560 bytesMD5:
bf7f1cd31576f2e8dfee7b87c6495c7e
8Vexp.jpg - 41,794 bytesMD5:
c470474ebc447f2529c1d54be9eec5a1
8Vexponen.jpg - 4,434,140 bytesMD5:
0139590a0e01c424bade24e0506ed2d4
8Vi.csv - 3,998,265 bytesMD5:
e4ed968294f970d9fe62856018749f0f
8Vi.tdms - 2,652,345 bytesMD5:
7058b35221a8ee82f95571d1f2a86b77
8Vi.tdms_index - 1,543,936 bytesMD5:
dfdaac34a8f93ce23bd83195d4efded4
8Vi.xlsx - 19,751 bytesMD5:
e0f4d0238b1983a155fdb8154a2df3db
8VPSS.fig - 23,813 bytesMD5:
f3d15dadd09b5e7662b8fc8266cfd4e3
abs.eps - 37,696 bytesMD5:
87a43da00cb2759a311abc6b4667e8b6
AllV_PSScoated.fig - 37,676 bytesMD5:
2812933d17d0688cbbedd29771bdae5d
AllV_uncoated.fig - 50,275 bytesMD5:
d352127cc7f26c158426a942b448f28c
AllV_uncoated.jpg - 832 bytesMD5:
3c900e2b2612c0d33843af4b8fe47106
Box.m - 19,755 bytesMD5:
ddd7802d5e17f279136ba2f56e77d632
CD.eps - 23,227 bytesMD5:
9fec83e9786809b183514a3b3826b473
CD.eps - 35,388 bytesMD5:
7b50187d559a2e4f44f1208b5007556d
CD_pd.jpg - 5,540 bytesMD5:
3e5a89f4130a240ab9248c49f97cb24b
Copy_of_Segmentedmodeling.m - 674,357 bytesMD5:
d000b72e3e0b08fcfe125cbd9f84d34a
datasheet-1090519-voltcraft-vc130-1-handheld-multimeter-digital-cat-iii-250-v-display-counts-2000.pdf - 19,723 bytesMD5:
fdba1206139ca017a635017251289624
I_overall.fig - 39,207 bytesMD5:
3a2f0e87d47b634384d0a383c2c2daeb
I_overall.jpg - 278,882 bytesMD5:
6f7fd3262063481c00461158c9c66098
IV.jpg - 34,582 bytesMD5:
c7e1b19a5e313f76fd85446a81d6f4fd
IV6trials.eps - 37,858 bytesMD5:
77983f228bdcac2834fff6ac7f017d52
IVcoated.eps - 61,582 bytesMD5:
8ca9fcb6b3d0c1727b3a6ff8b25d81eb
IVcoated.jpg - 494,543 bytesMD5:
d94c56fc2d270efe2febe55dcb936dc6
Ivst.png - 35,832 bytesMD5:
23005aa31f47df5d7ed57f75a25b0234
IVuncoated.eps - 58,838 bytesMD5:
2f43d7c0dc3119eb5a37852a001a9e1b
IVuncoated.jpg - 68,230 bytesMD5:
95f1bfbe455e5e8f7188062290c41321
IVuncoatedPSS.jpg - 63,106 bytesMD5:
0239e60d3192a0ebe73e6ff8fd4ddc20
IVuncoatedvsPSS.jpg - 386 bytesMD5:
0472d6bcc727072eaf4cefe8345cc02a
LCD.m - 37,375 bytesMD5:
8cc72c1cbc4f7018f154982ba1015168
LF.eps - 59,602 bytesMD5:
d9010a9783e1e95b703284e62fcb4f20
PD.jpg - 58,392 bytesMD5:
cf76c1b112badd66c86009461178f0ac
PDADMAC.jpg - 237,298 bytesMD5:
022101a3b17f5cdf27e7bf84ded59547
PDADMAC_i_t.png - 37,403 bytesMD5:
2525a8fe47707c7adba56f135369c4fa
PSSbw.fig - 1,112 bytesMD5:
f78cc807daacd2b07a1d89188608e907
Read me.rtf - 1,522,841 bytesMD5:
ec6057a502ca3b1f98d89c820c325687
Recording 1.tdms - 1,364,249 bytesMD5:
076878e9100f7c9d1c43ce10eb6efaaa
Recording 1.tdms_index - 669,111 bytesMD5:
779cc57905b73e7b6ac1105ec0a1aebf
Recording 2.csv - 1,945,721 bytesMD5:
9293c4e7ceb27da0d68a1bd9fea300bd
Recording 2.tdms - 1,738,425 bytesMD5:
cdee43b029f32b4a60cceae67aff768c
Recording 2.tdms_index - 61,454 bytesMD5:
def0d2430504285b25f9002b0c6f0ed6
SE_fitted_uncoated.jpg - 60,560 bytesMD5:
8d4b5aefa4b149765dfc342f3231f5a6
SE_fitted_uncoated.png - 58,682 bytesMD5:
2cf8fed80930bb24ee0a69e64173d6b7
Seg_coated.jpg - 15,621 bytesMD5:
3f97e201a960a23ccc0ceae20a5a7209
Seg_PDADMACcoated_HF90_2V_NaCl.xlsx - 59,990 bytesMD5:
40ced41111c9014508877b88aafc68f1
Seg_PDADMACcoated_HF90_2V_NaCl.xlsx - 16,365 bytesMD5:
7efd578cbb41df3b9562fa79b4801363
Seg_PDADMACcoated_HF90_2Vi_NaCl.xlsx - 16,778 bytesMD5:
acc153552407f32545db6de6765ab51b
Seg_PDADMACcoated_HF90_2Vi_NaCl.xlsx - 16,534 bytesMD5:
98b559b15e2d0b9a5f0ae6e94e853ecb
Seg_PDADMACcoated_HF90_4V_NaCl.xlsx - 18,339 bytesMD5:
87ec57f78ebda1472a0ecf523bd5883c
Seg_PDADMACcoated_HF90_4V_NaCl.xlsx - 21,783 bytesMD5:
aaf3a090db8415d5dd1aaaea020803da
Seg_PDADMACcoated_HF90_6V_NaCl.xlsx - 11,996 bytesMD5:
1feecadbb722de87361e9c29e3b54c36
Seg_PDADMACcoated_HF90_8V_NaCl.xlsx - 17,287 bytesMD5:
a6026aa492f05fb78733c82ba8a0f14d
Seg_PDADMACcoated_HF90_8V_NaCl.xlsx - 21,305 bytesMD5:
b65318b2d3b9caceda3f3b0cc2f59d2a
Seg_PSScoated_HF90_2V_NaCl.xlsx - 25,623 bytesMD5:
412f83ea5cda886107d7900ceb486396
Seg_PSScoated_HF90_2V_NaCl.xlsx - 19,456 bytesMD5:
160d974fa3deaf0b15f8eae096f738ce
Seg_PSScoated_HF90_2Vi_NaCl.xlsx - 17,057 bytesMD5:
8d336db558c700013052145fab95d2ff
Seg_PSScoated_HF90_2Vi_NaCl.xlsx - 25,898 bytesMD5:
04392e5fb320cfdf5690a3aa63650012
Seg_PSScoated_HF90_4V_NaCl.xlsx - 19,063 bytesMD5:
c9a771087db4b240b077e0928e0b7eec
Seg_PSScoated_HF90_4V_NaCl.xlsx - 18,280 bytesMD5:
8c44c368e8fda4c5fd75495bad614356
Seg_PSScoated_HF90_4Vi_NaCl.xlsx - 22,706 bytesMD5:
989345c4ec2be10654717db8a04e6ad8
Seg_PSScoated_HF90_4Vi_NaCl.xlsx - 27,509 bytesMD5:
682b7015aa557847950b517084c0cab0
Seg_PSScoated_HF90_6V_NaCl.xlsx - 22,063 bytesMD5:
1ff2cac81fbdd8a47f0ac8087a860181
Seg_PSScoated_HF90_6V_NaCl.xlsx - 16,894 bytesMD5:
84ca9b06bf2223180dd53afd2606bd85
Seg_PSScoated_HF90_6Vi_NaCl.xlsx - 16,388 bytesMD5:
d2af72389e7b364edfa753d3b62869f5
Seg_PSScoated_HF90_6Vi_NaCl.xlsx - 18,517 bytesMD5:
233be0398d759a31621438d945025d91
Seg_PSScoated_HF90_8V_NaCl.xlsx - 18,988 bytesMD5:
ce180a14b6acd5234cc861e2afc721a4
Seg_PSScoated_HF90_8V_NaCl.xlsx - 22,747 bytesMD5:
78373015eb46e4c697dd0a84d650c301
Seg_PSScoated_HF90_8Vi_NaCl.xlsx - 16,440 bytesMD5:
48fb882f097e30b7eaa7197027d1110e
Seg_PSScoated_HF90_8Vi_NaCl.xlsx - 27,574 bytesMD5:
9cc3eada37851c9049c3e389a70248a7
Seg_Uncoated_HF90_2V_NaCl.xlsx - 27,264 bytesMD5:
02aa5cbb4ee0934449e212e520e8e79e
Seg_Uncoated_HF90_2V_NaCl.xlsx - 142,722 bytesMD5:
537ede53ff1c8ee533f8332844b38b09
Seg_Uncoated_HF90_2V_NaCl.xlsx - 19,671 bytesMD5:
e84125825bc297a0816d0ee99f97f0ec
Seg_Uncoated_HF90_2Vt1_NaCl.xlsx - 21,223 bytesMD5:
a87a9ef6297ffcd447f0aa50a13e7775
Seg_Uncoated_HF90_2Vt2_NaCl.xlsx - 20,850 bytesMD5:
48be6e906a1647d59f744adce85b2ce2
Seg_Uncoated_HF90_2Vt3_NaCl.xlsx - 23,764 bytesMD5:
d4234cb98d4a93bea656b590b80b3764
Seg_Uncoated_HF90_4V_NaCl.xlsx - 21,961 bytesMD5:
303ac1105d542148d8dc54ba426c74ee
Seg_Uncoated_HF90_4V_NaCl.xlsx - 21,906 bytesMD5:
b90f8d54b519a8a3fa5c4cee13133a0e
Seg_Uncoated_HF90_4V_NaCl.xlsx - 22,443 bytesMD5:
08141b97dbad5d2222269eacfbde7826
Seg_Uncoated_HF90_4Vt1_NaCl.xlsx - 23,000 bytesMD5:
9492787ad4e7429e9a7464b9e7705f5f
Seg_Uncoated_HF90_4Vt2_NaCl.xlsx - 20,312 bytesMD5:
082d5c54dbc974e74f9e288f0d741779
Seg_Uncoated_HF90_4Vt3_NaCl.xlsx - 21,560 bytesMD5:
75a6cd77e41c4ee0a412c875ef388c09
Seg_Uncoated_HF90_6V_NaCl.xlsx - 20,144 bytesMD5:
0139352ba55ba082fb69faab572805df
Seg_Uncoated_HF90_6V_NaCl.xlsx - 19,888 bytesMD5:
b8ea708bfce6e27c25af865f5a877833
Seg_Uncoated_HF90_6Vt1_NaCl.xlsx - 20,316 bytesMD5:
46339eb9974d217bda6a5020b43f3e59
Seg_Uncoated_HF90_6Vt1_NaCl.xlsx - 16,278 bytesMD5:
b07e6834e14a2735020d97060e14e008
Seg_Uncoated_HF90_6Vt2_NaCl.xlsx - 20,756 bytesMD5:
882208f61e815af53a25a941a116e92a
Seg_Uncoated_HF90_6Vt_NaCl.xlsx - 20,117 bytesMD5:
97603a2130b793bd9c21cdaac5831cfc
Seg_Uncoated_HF90_8V_NaCl.xlsx - 18,461 bytesMD5:
1d970a726798bf4d43104d2a4c756695
Seg_Uncoated_HF90_8V_NaCl.xlsx - 23,369 bytesMD5:
d1c76dc43f708adc5528401bcb0219d3
Seg_Uncoated_HF90_8Vt1_NaCl.xlsx - 21,166 bytesMD5:
5c50aec8473a90e1f336b54f68555555
Seg_Uncoated_HF90_8Vt1_NaCl.xlsx - 27,993 bytesMD5:
0435868ebb30f89d485d9647570f83d3
Seg_Uncoated_HF90_8Vt2_NaCl.xlsx - 22,071 bytesMD5:
3086fa83433aee6ac68ddb0ff859235d
Seg_Uncoated_HF90_8Vt3_NaCl.xlsx - 20,976 bytesMD5:
baed9f4d8c470b4fa6a3a493be30b32d
Seg_Uncoated_LF45_2V_NaCl.xlsx - 36,576 bytesMD5:
358eef305107c4838e4bc060f976cadc
Seg_Uncoated_LF45_4V_NaCl.xlsx - 12,524 bytesMD5:
eb442ac653a6ae0cf87fbbc5b70a7caf
segmented.m - 10,823 bytesMD5:
4ca6138d60da07551331672e29b17498
Segmented_calc.xlsx - 6,253 bytesMD5:
a884e6c6a60232a7c3363e1a796ff574
Segmented_Calculator_v3.m - 3,710 bytesMD5:
fee3b303f1bca4a1d7503d513117aef6
Segmented_Calculator_v4.m - 92,449 bytesMD5:
fae4d4ef493f4d0ba89be10d48716144
Segmented_Schematic.png - 9,861 bytesMD5:
3dc32ae19374c3f91ff59c51639154b3
Segmentedmodeling.m - 1,545 bytesMD5:
ac7d185a773940aabca21150a9b679c2
Segplots.m - 5,067 bytesMD5:
00a814a4d6518acffb4d823d4dbaa0b9
segv3.m - 37,504 bytesMD5:
09ecb1ae1895d2ee9d2d9a37af1b47b5
simu_allvolts.fig - 64,897 bytesMD5:
14ee161ff3cedff068581f5b42727ebf
simu_allvolts.jpg - 142,722 bytesMD5:
537ede53ff1c8ee533f8332844b38b09
Total current data.xlsx -
download all files (zip)
34,442,559 bytes unzipped