PMID- 25221915 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150417 LR - 20211021 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 4 DP - 2014 Sep 5 TI - Enhancement of platinum mass activity on the surface of polymer-wrapped carbon nanotube-based fuel cell electrocatalysts. PG - 6295 LID - 10.1038/srep06295 [doi] LID - 6295 AB - Cost reduction and improved durability are the two major targets for accelerating the commercialization of polymer electrolyte membrane fuel cells (PEFCs). To achieve these goals, the development of a novel method to fabricate platinum (Pt)-based electrocatalysts with a high mass activity, deposited on durable conductive support materials, is necessary. In this study, we describe a facile approach to grow homogeneously dispersed Pt nanoparticles (Pt) with a narrow diameter distribution in a highly controllable fashion on polymer-wrapped carbon nanotubes (CNTs). A PEFC cell employing a composite with the smallest Pt nanoparticle size (2.3 nm diameter) exhibited a ~8 times higher mass activity compared to a cell containing Pt with a 3.7 nm diameter. This is the first example of the diamter control of Pt on polymer-wrapped carbon supporting materials, and the study opens the door for the development of a future-generation of PEFCs using a minimal amount of Pt. FAU - Hafez, Inas H AU - Hafez IH AD - 1] International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan [2] Department of Natural resources and Agricultural Engineering, Faculty of Agriculture, Damanhour University, Damanhour 22516, Egypt. FAU - Berber, Mohamed R AU - Berber MR AD - 1] International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan [2] Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt. FAU - Fujigaya, Tsuyohiko AU - Fujigaya T AD - 1] International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan [2] Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan. FAU - Nakashima, Naotoshi AU - Nakashima N AD - 1] International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan [2] Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan [3] JST-CREST, 5 Sanbancho, Chiyoda-ku, Tokyo, 102-0075, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140905 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 PMC - PMC4164040 EDAT- 2014/09/16 06:00 MHDA- 2014/09/16 06:01 PMCR- 2014/09/05 CRDT- 2014/09/16 06:00 PHST- 2014/06/06 00:00 [received] PHST- 2014/08/21 00:00 [accepted] PHST- 2014/09/16 06:00 [entrez] PHST- 2014/09/16 06:00 [pubmed] PHST- 2014/09/16 06:01 [medline] PHST- 2014/09/05 00:00 [pmc-release] AID - srep06295 [pii] AID - 10.1038/srep06295 [doi] PST - epublish SO - Sci Rep. 2014 Sep 5;4:6295. doi: 10.1038/srep06295.