Electrocatalytic hydrogen production on a modified pencil graphite electrode

Electrochemically dealloyed nanoporous Fe40Ni20Co20P15C5 metallic glass for efficient and stable electrocatalytic hydrogen and oxygen generation

“…3d) for the as dealloyed MG ribbon toward HER in acidic medium is evaluated to be 67 mV dec À1 , and it indicates that the HER reaction proceeds via Volmer-Heyrovsky mechanism (Volmer step: H + + e À / H ads ; Tafel slope: 120 mV dec À1 and Heyrovsky step: H + + H ads + e À / H 2(g) ; Tafel slope: 40 mV dec À1 ) with desorption as the rate-limiting step. 36,44 The Tafel slope for Pt catalyst is measured to be 24.5 mV dec À1 . Tafel slope for the current MG and reported electrocatalysts toward HER in the acid medium from other similar reports are given in Table S1.…”

Elektroki̇myasal Aritim Prosesi̇ İle Kot Kumaşi Üreti̇m Tesi̇si̇ Atiksuyundan Koi̇ Gi̇deri̇mi̇ Ve Regresyon Yöntemi̇ İle Opti̇mi̇zasyonu

“…İstenilen voltaj ve akım güç kaynağı ile sağlanarak belirlenen süreler sonunda alınan numunelerde gerekli analizler yapılmıştır. Her çalışma öncesinde elektrotlar üzerinde biriken kir ve pas kalıntılarını gidermek amacıyla önceden hazırlanan temizleme çözeltisi içerisinde (0,25 M H2SO4) 5 dakika bekletilmiştir [12]. Temizleme sonrası elektrotlar 100°C etüvde kurutulmuş, desikatörde sabit tartıma hazır hale getirilerek bir sonraki deney düzeneği için hazırlanmıştır.…”

Pencil Graphite Electrodes Decorated with Platinum Nanoparticles as Efficient Electrocatalysts for Hydrogen Evolution Reaction

“…Furthermore, these electrodes are described by sensitivity, and are considered a viable, renewable and economical alternative [ 14 ]. Their high activity, stability and cost-efficiency has boosted the interest of their use for other important electrochemical processes, such as hydrogen evolution reaction [ 17 ].…”