Pd-based PdPt(19:1)/C electrocatalyst as an electrode in PEM fuel cell

In-situ investigation on the CO tolerance of carbon supported Pd–Pt electrocatalysts with low Pt content by electrochemical impedance spectroscopy

“…7c and d, the serious pseudo-inductive behavior is not observed in the Nyquist plots and the new loops appear in higher frequency region rather than in lower frequency region. These results indicate that the oxidation removal of CO ads does not occur on the surface of PdePt/C catalysts, which is in agreement with Garcia's result [19]. The charge-transfer resistances of single cells with PdePt/C catalysts at 500 mA cm À2 are lower than half of those with TKK Pt/ C and JM PtRu/C catalysts, which imply that the coverage of CO ads on the PdePt/C catalysts is remarkably lower than that on the TKK Pt/C and JM PtRu/C catalysts.…”

“…PdePt bimetal catalyst, even with low Pt content, shows comparable HOR activity with Pt/C catalysts [18,19]. The CO tolerance of PdePt catalyst is superior to that of pure Pt and pure Pd catalysts and comparable with that of PtRu catalyst [18,20].…”

Molecular dynamics simulations of ternary PtxPdyAuz fuel cell nanocatalyst growth

“…Pt x Pd 1-x . binary catalysts have been proposed as possible candidates for both PEMFC electrodes, the anode for the hydrogen oxidation reaction and the cathode for improved oxygen reduction reaction (ORR) compared with pure platinum [18][19][20][21][22]. At the same time, Au addition was proposed to improve durability of the nanocatalysts [23][24][25][26][27].…”

Morphology Controlled Cathode Catalyst Layer with AAO Template in Polymer Electrolyte Membrane Fuel Cells

“…막-전극접합체 (MEA)의 성능을 향상시키고 촉 매로 사용하는 백금의 사용량을 줄이기 위하여 백금 합금 촉매 및 비백금 촉매에 관한 연구가 진행되고 있다. [4][5][6][7] 또한, 백금 이용률을 증가시키고 촉매층의 구 조를 최적화하기 위하여 MEA 제조 방법에 관한 연 구가 진행되고 있다. [8][9][10][11] 촉매층의 구조를 개선하려는 연구의 일환으로 기공 형성제를 이용한 MEA 제조에 관한 연구가 진행되고 있다.…”