Ni and/or Co nanoparticles as catalysts for oxygen reduction reaction (ORR) at room temperature

Goubert-Renaudin, Stéphanie; Wiȩckowski, Andrzej

doi:10.1016/j.jelechem.2010.11.022

Cited by 44 publications

(21 citation statements)

References 53 publications

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“…Various metals such as Au [17], Ag [18], Pd [19] and Ni [20] are explored to achieve high ORR comparable to Pt catalysts. Among the non-Pt metals described, Ag is regarded as most promising alternative of Pt owing to its good thermodynamical and electrochemical stability, abundance, high catalytic ORR activity and low cost [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Stable silver nanoclusters electrochemically deposited on nitrogen-doped graphene as efficient electrocatalyst for oxygen reduction reaction

Jin

Chen

Dong

et al. 2015

Journal of Power Sources

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Section: Introductionmentioning

confidence: 99%

Stable silver nanoclusters electrochemically deposited on nitrogen-doped graphene as efficient electrocatalyst for oxygen reduction reaction

Jin

Chen

Dong

et al. 2015

Journal of Power Sources

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“…[35][36][37][38] Thus, their application seems too expensive and technically demanding for developing countries. Therefore here low-cost as well as ubiquitous materials were investigated.…”

Section: Resultsmentioning

confidence: 99%

eLatrine: Lessons Learned from the Development of a Low-Tech MFC Based on Cardboard Electrodes for the Treatment of Human Feces

Kretzschmar

Riedl

Brown

et al. 2016

J. Electrochem. Soc.

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The aim of the study was to provide experimental proof-of-concept that stand-alone power generation based on microbial fuel cells (MFCs) operated using human feces as the substrate can be achieved. A pit latrine that is typically employed for decentralized treatment of human feces e.g. in regions without access to centralized wastewater infrastructures was installed as sampling site. It was the philosophy that the components, i.e. anodes and cathodes, used in the MFCs had to be based on low-cost precursors. This was achieved by recycling common household materials or waste products and a low-tech/cost production method was developed to convert them into usable electrodes. It is demonstrated that i) pre-tests on using an equivalent to vent-air from ovens or fire-places allowed a low-tech carbonization of e.g. corrugated cardboard to electrode materials; ii) that anodes based on corrugated cardboard can be operated using real human feces as substrate, nevertheless, providing only low current densities (15.09 ± 5.18 μA cm −2 ) and iii) cathodes -with nitrogen functionalities derived from (artificial) urine -based on corrugated cardboard or as an alternative jeans cloth show a good oxygen reduction reaction (ORR) activity. Introducing nitrogen containing surface moieties to the cathode surface increased the ORR up to factor 5 (chronoamperometry at 0 V vs. Ag/AgCl sat. KCl) compared to the untreated reference. Most importantly, highly valuable lessons for exploiting real and highly heterogeneous and dense substrates like human feces in microbial electrochemical technologies were learned. In 2015 the United Nations proposed the 17 Sustainable Development Goals to be achieved by 2030.1 Among these are for instance "Good health and well-being", "Clean water and sanitation", "Affordable and clean energy" as well as "Sustainable cities and communities". Hence, sanitation and concurrently treat of waste is a key challenge, as it covers technical as well as socio-economic and health related issues.2,3 Wastewater treatment facilities and related infrastructure, e.g. as typically installed in the USA or Europe, can be a significant sink for energy and resources, 4-6 which are needed for construction, maintenance, especially of the sewer system, and operation. 7At the same time an estimated 2.4 billion people, or approx. 33 % of the world population, do not have access to such infrastructure. For this share of the world's population using simple solutions such as pit latrines can already be advantageous in terms of hygiene and security when compared to open defecation.2,3 Therefore decentralized sanitation systems seem advantageous in developing regions with no or only very little existing infrastructure.Waste and wastewaters have gradually become perceived not as sinks of chemicals and energy but as re-sources thereof. In this light microbial electrochemical technologies (MET) 8 and especially microbial fuel cells (MFCs) are considered to be a highly promising solution.6 MFCs are primary microbial electrochemical technologies...

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“…Cu nanoparticle catalyst exhibit barely catalytic current for ORR [16]. The onset potential and limiting current density of Ag catalyst for ORR are -0.21 V (vs SCE) and 46 mA cm -2 g -1 at -0.8V (vs SCE) [17], respectively, which have a significant improvement compared to Ni foam and Cu nanoparticles catalyst.…”

Section: (B) the Ni Foam Andmentioning

confidence: 93%

Facile preparation of Ag-Cu bifunctional electrocatalysts for zinc-air batteries

Jin

Chen

2015

Electrochimica Acta

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Ni and/or Co nanoparticles as catalysts for oxygen reduction reaction (ORR) at room temperature

Cited by 44 publications

References 53 publications

Stable silver nanoclusters electrochemically deposited on nitrogen-doped graphene as efficient electrocatalyst for oxygen reduction reaction

Stable silver nanoclusters electrochemically deposited on nitrogen-doped graphene as efficient electrocatalyst for oxygen reduction reaction

eLatrine: Lessons Learned from the Development of a Low-Tech MFC Based on Cardboard Electrodes for the Treatment of Human Feces

Facile preparation of Ag-Cu bifunctional electrocatalysts for zinc-air batteries

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