Real-time determination of 'COIND.2' production and estimation of adsorbate coverage on a proton exchange membrane fuel cell under oscillatory operation - Lopes, Pietro Papa; Batista, Bruno Carreira; Saglietti, Guilherme Gonçalves de Aquino; Varela, Hamilton; Ticianelli, Edson Antonio (Journal of Solid State Electrochemistry, 2013)