PMID- 21158405 OWN - NLM STAT- MEDLINE DCOM- 20110425 LR - 20200930 IS - 1530-6992 (Electronic) IS - 1530-6984 (Linking) VI - 11 IP - 1 DP - 2011 Jan 12 TI - Three-dimensional carbon nanotube-textile anode for high-performance microbial fuel cells. PG - 291-6 LID - 10.1021/nl103905t [doi] AB - Microbial fuel cells (MFCs) harness the metabolism of microorganisms, converting chemical energy into electrical energy. Anode performance is an important factor limiting the power density of MFCs for practical application. Improving the anode design is thus important for enhancing the MFC performance, but only a little development has been reported. Here, we describe a biocompatible, highly conductive, two-scale porous anode fabricated from a carbon nanotube-textile (CNT-textile) composite for high-performance MFCs. The macroscale porous structure of the intertwined CNT-textile fibers creates an open 3D space for efficient substrate transport and internal colonization by a diverse microflora, resulting in a 10-fold-larger anolyte-biofilm-anode interfacial area than the projective surface area of the CNT-textile. The conformally coated microscale porous CNT layer displays strong interaction with the microbial biofilm, facilitating electron transfer from exoelectrogens to the CNT-textile anode. An MFC equipped with a CNT-textile anode has a 10-fold-lower charge-transfer resistance and achieves considerably better performance than one equipped with a traditional carbon cloth anode: the maximum current density is 157% higher, the maximum power density is 68% higher, and the energy recovery is 141% greater. FAU - Xie, Xing AU - Xie X AD - Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305, United States. FAU - Hu, Liangbing AU - Hu L FAU - Pasta, Mauro AU - Pasta M FAU - Wells, George F AU - Wells GF FAU - Kong, Desheng AU - Kong D FAU - Criddle, Craig S AU - Criddle CS FAU - Cui, Yi AU - Cui Y LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101215 PL - United States TA - Nano Lett JT - Nano letters JID - 101088070 RN - 0 (Biocompatible Materials) RN - 0 (Nanotubes, Carbon) SB - IM MH - Biocompatible Materials/chemistry MH - *Bioelectric Energy Sources/economics/trends MH - Electrodes MH - Electron Transport MH - Nanotubes, Carbon/*chemistry/ultrastructure MH - Porosity MH - *Textiles/analysis EDAT- 2010/12/17 06:00 MHDA- 2011/04/26 06:00 CRDT- 2010/12/17 06:00 PHST- 2010/12/17 06:00 [entrez] PHST- 2010/12/17 06:00 [pubmed] PHST- 2011/04/26 06:00 [medline] AID - 10.1021/nl103905t [doi] PST - ppublish SO - Nano Lett. 2011 Jan 12;11(1):291-6. doi: 10.1021/nl103905t. Epub 2010 Dec 15.