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dc.contributor.authorLiu, Guoqiang
dc.contributor.authorZhang, Xian
dc.contributor.authorZhao, Cuijiao
dc.contributor.authorXiong, Qizhong
dc.contributor.authorGong, Wanbing
dc.contributor.authorWang, Guozhong
dc.contributor.authorZhang, Yunxia
dc.contributor.authorZhang, Haimin
dc.contributor.authorZhao, Huijun
dc.description.abstractElectrocatalytic water splitting as an environmentally friendly method to produce clean H2 has attracted wide attention. However, efficient improvement of the performance of the oxidation half-reaction during water splitting, thus enhancing H2 evolution efficiency, has become an urgent issue. Herein, non-precious metal Co0.83Ni0.17 alloy nanoparticles on activated carbon (Co0.83Ni0.17/AC) have been successfully fabricated by a simple thermal-treatment method. The resulting Co0.83Ni0.17/AC with a dominant alloy particle size of 45 nm exhibits a microporous and mesoporous structure with a surface area of 159.2 m2 g−1. As an electrocatalyst, the as-prepared Co0.83Ni0.17/AC demonstrates bifunctional electrocatalytic activity toward the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline media, delivering overpotentials of 193 and 325 mV at 10 mA cm−2, respectively. Importantly, it is found that the electrocatalytic oxidation of benzyl alcohol to benzoic acid on Co0.83Ni0.17/AC is more favourable than the OER process, with almost 224 mV less overpotential at 10 mA cm−2 and 96% faradaic efficiency at 1.425 V vs. RHE (passing charge amount of ∼40C). As a simultaneous anode and cathode electrocatalyst for water splitting, Co0.83Ni0.17/AC displays a H2 generation rate of 8.98 μmol min−1 in 1.0 M KOH solution containing 10 mM benzyl alcohol, almost 1.4 times that obtained by an OER-introduced water splitting system, with near 98% faradaic efficiency for H2. This work would be helpful to develop low-cost and abundant bifunctional electrocatalysts for electrocatalytic organic synthesis and simultaneously improving H2 generation from water splitting.
dc.relation.ispartofjournalNEW JOURNAL OF CHEMISTRY
dc.subject.fieldofresearchChemical sciences
dc.titleElectrocatalytic oxidation of benzyl alcohol for simultaneously promoting H-2 evolution by a Co0.83Ni0.17/activated carbon electrocatalyst
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorZhao, Huijun
gro.griffith.authorZhang, Haimin

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