Carbon-based electrocatalysts for sustainable energy applications

Wang, Jian; Kong, Hui; Zhang, Jinying; Hao, Yong; Shao, Zongping; Ciucci, Francesco

doi:10.1016/j.pmatsci.2020.100717

Cited by 244 publications

(171 citation statements)

References 552 publications

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“…Among various alternatives, pyridinic nitrogen (N) doped carbons attract significant attention due to their high stability and excellent activity. [139,166] As mentioned in Section 3.2, plenty of N-doped carbon materials can be prepared by using DESs as precursors. Therefore, it is practicable to prepare ORR catalysts based on DESs because the dopant and graphitization of carbon can be integrated tactfully.…”

Section: (19 Of 25)mentioning

confidence: 99%

“…Electrolysis has experienced tremendous research progress over the past decade because of its important role in the production of renewable energy resources. [ 139 ] Various electrocatalytic reactions have been extensively studied, including HER, oxygen evolution reaction (OER), methanol/ethanol oxidation reaction (MOR/EOR), oxygen reduction reaction (ORR), nitrogen reduction reaction (NRR), etc. In these electrocatalytic reactions, the conversion efficiency is critical to the performance of sustainable energy devices and is mainly determined by the electrocatalysts.…”

Section: Dess For Electrocatalytic Applicationsmentioning

confidence: 99%

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Deep Eutectic Solvents for Boosting Electrochemical Energy Storage and Conversion: A Review and Perspective

Liang

et al. 2021

Adv Funct Materials

190

163

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The pursuit of sustainable energy utilization arouses increasing interest in efficiently producing durable battery materials and catalysts with minimum environmental impact. As green, safe, and cheap eutectic mixtures, deep eutectic solvents (DESs) provide tremendous opportunities and open up attractive perspectives as charge transfer and reaction media for electrochemical energy storage and conversion (EESC). In this review, the fundamental properties of DESs are first summarized. Then, the important roles that DESs play in various EESC technologies including advanced electrolytes for batteries/supercapacitors, media for the preparation of electrode materials and catalysts, and extracting agents for battery recycling are systematically reviewed. A particular focus is placed on the fundamental understanding of structure-composition-property-performance relationships. Finally, the challenges for the controllable design of DESs for EESC applications and future developments are presented. This review is expected to shed light on developing advanced DESs for next-generation EESC systems.

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Section: (19 Of 25)mentioning

confidence: 99%

Section: Dess For Electrocatalytic Applicationsmentioning

confidence: 99%

Deep Eutectic Solvents for Boosting Electrochemical Energy Storage and Conversion: A Review and Perspective

Liang

et al. 2021

Adv Funct Materials

190

163

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“…In addition to chemical composition, the morphology of the catalyst also plays a vital role in improving catalytic activity. In particular, the well‐dispersed hollow structure enhances the catalytic activity by exposing more edge atoms and internal geometry, which serve as the active sites and facilitate the mass transfer for the three‐phase reaction between O 2 , electrolyte, and catalyst [23,24] . Hence, a multi‐element catalyst with a hollow structure is expected to exhibit a synergistic effect on its bifunctional catalytic activity by combining the advantage of its material and morphology.…”

Section: Introductionmentioning

confidence: 99%

Red Bean Pod Derived Heterostructure Carbon Decorated with Hollow Mixed Transition Metals as a Bifunctional Catalyst in Zn‐Air Batteries

Mahbub

Adios

et al. 2021

Chemistry An Asian Journal

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Design and synthesis of low‐cost and efficient bifunctional catalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in Zn‐air batteries are essential and challenging. We report a facile method to synthesize heterostructure carbon consisting of graphitic and amorphous carbon derived from the agricultural waste of red bean pods. The heterostructure carbon possesses a large surface area of 625.5 m2 g−1, showing ORR onset potential of 0.89 V vs. RHE and OER overpotential of 470 mV at 5 mA cm−2. Introducing hollow FeCo nanoparticles and nitrogen dopant improves the bifunctional catalytic activity of the carbon, delivering ORR onset potential of 0.93 V vs. RHE and OER overpotential of 360 mV. Electron energy‐loss spectroscopy (EELS) O K‐edge map suggests the presence of localized oxygen on the FeCo nanoparticles, suggesting the oxidation of the nanoparticles. Zn‐air battery with these carbon‐based catalysts exhibits a peak power density as high as 116.2 mW cm−2 and stable cycling performance over 210 discharge/charge cycles. This work contributes to the advancement of bifunctional oxygen electrocatalysts while converting agricultural waste into value‐added material.

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“…Azalan enerji kaynakları ve artan çevresel sorunlar insanlığı sürdürülebilir enerji kaynakların bulunmasına yöneltmiştir. Bunlar arasında hidrojen içerdiği yüksek enerji yoğunluğu (143 MJ/kg) ve temiz olması nedeniyle ön plana çıkmaktadır [1].…”

Section: Introductionunclassified

CuZn Elektrotundan Zn’nin Uzaklaştırılmasının Hidrojen Çıkış Davranışı Üzerine Etkisi

Döşlü¹

2021

Fırat Üniversitesi Mühendislik Bilimleri Dergisi

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Öz: Hidrojen üretiminde, elektrokimyasal yolla suyun ayrıştırılmasında yüksek katalitik aktiviteye sahip ve kararlı elektrotların geliştirilmesi çok önemlidir. Burada, CuZn elektrotunun fabrikasyonunu yapmak için ucuz alkali uzaklaştırma yöntemi kullanılmış ve bu yöntem elektrota, hidrojen oluşum reaksiyonu (HER) için yüksek yüzey alanı ve verimli aktif merkezler sağlamıştır. CuZn elektrotu karakterize etmek için, taramalı elektron mikroskop (SEM), enerji dağılımlı X-Işını (EDX), atomik kuvvet mikroskop (AFM) ve Dönüşümlü voltametri (CV) tekniklerinden yararlanılmıştır. CuZn elektrotunun hidrojen oluşum karakteristiği 1,0 M KOH çözeltisinde, bakır kaplı bakır elektrot (Cu/Cu) ile kıyaslanmıştır. SEM analizlerine göre, Cu/Cu elektrotta bakır nano-tanecikler yüzeye dağılırken, CuZn elektrotta karnabahara benzeyen şekiller elde edilmiştir. Metallerin karakteristik pikleri CV ve EDX spektrumlarında ortaya çıkmıştır. HER etkinlikleri değerlendirildiğinde, CuZn elektrot (0.309 mA cm-2), Cu/Cu elektrot (0.043 mA cm-2) ile kıyaslandığında yüksek yük değişimi akım yoğunluğu elde edilmiştir. Ayrıca, CuZn elektrot, 50 mA cm-2 akım yoğunluğunda daha düşük aşırı gerilime ve daha düşük Tafel eğimine sahiptir. Bu CuZn elektrotun Cu/Cu elektrotundan daha yüksek HER performansına sahip olduğu anlamına gelir. Bu yüksek katalitik aktivite, alkali uzaklaştırma nedeniyle yüksek yüzey alanı ve Zn ve Cu metallerinin sinerjistik etkisi ile açıklanabilir. Bu deneylere ek olarak, CuZn elektrot bazik ortamda 18000 saniye boyunca oldukça yüksek kararlılık ve dayanıklılık göstermiştir.

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Carbon-based electrocatalysts for sustainable energy applications

Cited by 244 publications

References 552 publications

Deep Eutectic Solvents for Boosting Electrochemical Energy Storage and Conversion: A Review and Perspective

Deep Eutectic Solvents for Boosting Electrochemical Energy Storage and Conversion: A Review and Perspective

Red Bean Pod Derived Heterostructure Carbon Decorated with Hollow Mixed Transition Metals as a Bifunctional Catalyst in Zn‐Air Batteries

CuZn Elektrotundan Zn’nin Uzaklaştırılmasının Hidrojen Çıkış Davranışı Üzerine Etkisi

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