Enhanced thermo cell properties from N-doped carbon nanotube-Pd composite electrode

Dong, Mingliang; Qian, Weijin; Liu, Xing Zhen; Chen, Yawei; Huang, Weijun; Dong, Changkun

doi:10.1016/j.surfcoat.2022.128213

Cited by 8 publications

(4 citation statements)

References 39 publications

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“…The decrease in the internal resistance was mainly due to the decrease in R mt that can be reduced by the temperature gradient-induced convection flow of electrolyte. The areal power density (P) was 193.4 mW m −2 and P/(ΔT) 2 was 0.236 mW m −2 K ΔT of 28.6 K (Figure 7b), which are comparable to those of MXene/SWCNTs/PANI posite (0.0822 mW m −2 K −2 at ΔT of 40 K) [63], CNT (0.353 mW m −2 K −2 at ΔT of 50 K) CNT/graphene electrode (0.460 mW m −2 K −2 at ΔT of 50 K) [64], N-doped CNT/Pd com site (0.432 mW m −2 K −2 at ΔT of 50 K) [65], and carbon fiber (0.0101 mW m −2 K −2 at ΔT K) [66].…”

Section: Resultsmentioning

confidence: 99%

“…The mandarin peel waste was successfully converted into carbonaceous materia thermocell electrodes. The influence of carbonization temperature on the structural, c ical properties, and thermocell performance of CMP was explored, and CMP-800 car ized at 800 °C generated the maximum electrical power due to the combined contribu The areal power density (P) was 193.4 mW m −2 and P/(∆T) 2 was 0.236 mW m −2 K −2 for ∆T of 28.6 K (Figure 7b), which are comparable to those of MXene/SWCNTs/PANI composite (0.0822 mW m −2 K −2 at ∆T of 40 K) [63], CNT (0.353 mW m −2 K −2 at ∆T of 50 K) [64], CNT/graphene electrode (0.460 mW m −2 K −2 at ∆T of 50 K) [64], N-doped CNT/Pd composite (0.432 mW m −2 K −2 at ∆T of 50 K) [65], and carbon fiber (0.0101 mW m −2 K −2 at ∆T of 50 K) [66].…”

Section: Discussionmentioning

confidence: 99%

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Biomass-Derived Sustainable Electrode Material for Low-Grade Heat Harvesting

Park

Kim

2023

Nanomaterials

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The ever-increasing energy demand and global warming caused by fossil fuels push for the exploration of sustainable and eco-friendly energy sources. Waste thermal energy has been considered as one of the promising candidates for sustainable power generation as it is abundantly available everywhere in our daily lives. Recently, thermo-electrochemical cells based on the temperature-dependent redox potential have been intensely studied for efficiently harnessing low-grade waste heat. Despite considerable progress in improving thermocell performance, no attempt was made to develop electrode materials from renewable precursors. In this work, we report the synthesis of a porous carbon electrode from mandarin peel waste through carbonization and activation processes. The influence of carbonization temperature and activating agent/carbon precursor ratio on the performance of thermocell was studied to optimize the microstructure and elemental composition of electrode materials. Due to its well-developed pore structure and nitrogen doping, the mandarin peel-derived electrodes carbonized at 800 °C delivered the maximum power density. The areal power density (P) of 193.4 mW m−2 and P/(ΔT)2 of 0.236 mW m−2 K−2 were achieved at ΔT of 28.6 K. However, KOH-activated electrodes showed no performance enhancement regardless of activating agent/carbon precursor ratio. The electrode material developed here worked well under different temperature differences, proving its feasibility in harvesting electrical energy from various types of waste heat sources.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Biomass-Derived Sustainable Electrode Material for Low-Grade Heat Harvesting

Park

Kim

2023

Nanomaterials

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“…[10,11] Specifically, the net reaction at the hot end of P-type TEC is an oxidation reaction, for example, ferri/ferrocyanide [Fe(CN) 6 3− /Fe(CN) 6 4− ] based TECs. [12][13][14][15][16][17][18][19] Naturally, the net reaction of N-type is a reduction reaction correspondingly, such as cobalt(III/II) tris(bipyridyl), [20][21][22] Fe, 3+/2+ [10,11,[23][24][25][26][27][28] I 3 −1 /I −1 [29][30][31][32][33] TECs. Generally speaking, P-type TECs tend to have better properties.…”

Section: Introductionmentioning

confidence: 99%

Semi‐Solid Thermo‐Electrochemical Cell Based Wearable Power Generator for Body Heat Harvesting

Xu,

Tao,

Qian

et al. 2024

Adv Funct Materials

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A high‐performance TiO2/GO‐Fe3+/2+‐based N‐type thermo‐electrochemical cell (TEC) is demonstrated and prepared P‐N combined power generator prototypes combining BST/FeCN3‐/4−‐based P‐type TEC that is reported in the previous work. The functional groups on the TiO2/GO in the electrolyte can adjust the solvation structure of Fe3+/2+ to improve the Se value. In addition, TiO2 acts as a relay reaction site to improve charge transport efficiency. The synergistic effect results in Se of 2.53 mV K−1 and a maximum output power density of 0.38 W m−2. Besides, both flexible and rigid power generator prototypes are prepared. It is worth noting that the flexible prototype can generate an open‐circuit voltage of 1.27 V and power an electronic watch by using the temperature difference between the human body and the environment. This work demonstrates the potential of TEC for low‐grade heat energy recovery and powering wearable devices.

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“…In this regard, Pd NPs were synthesized by three types of method: a chemical method [18], a physical method [19], and a biological method [20], but on the industrial scale, the physical method and chemical method were of interest. Physical methods included magnetron sputtering [21], physical vapor deposition [22], and laser ablation [23]. However, the synthesized physical method required expensive equipment and energyintensive processes, including maintaining high pressure and high temperatures [24].…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in the Application of Palladium Nanoparticles: A Review

Alaqarbeh,

Adil,

Ghrear

et al. 2023

Catalysts

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Palladium (Pd), a noble metal, has unique properties for C-C bond formation in reactions such as the Suzuki and Heck reactions. Besides Pd-based complexes, Pd NPs have also attracted significant attention for applications such as fuel cells, hydrogen storage, and sensors for gases such as H2 and non-enzymatic glucose, including catalysis. Additionally, Pd NPs are catalysts in environmental treatment to abstract organic and heavy-metal pollutants such as Cr (VI) by converting them to Cr(III). In terms of biological activity, Pd NPs were found to be active against Staphylococcus aureus and Escherichia coli, where 99.99% of bacteria were destroyed, while PVP-Pd NPs displayed anticancer activity against human breast cancer MCF7. Hence, in this review, we attempted to cover recent progress in the various applications of Pd NPs with emphasis on their application as sensors and catalysts for energy-related and other applications.

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Enhanced thermo cell properties from N-doped carbon nanotube-Pd composite electrode

Cited by 8 publications

References 39 publications

Biomass-Derived Sustainable Electrode Material for Low-Grade Heat Harvesting

Biomass-Derived Sustainable Electrode Material for Low-Grade Heat Harvesting

Semi‐Solid Thermo‐Electrochemical Cell Based Wearable Power Generator for Body Heat Harvesting

Recent Progress in the Application of Palladium Nanoparticles: A Review

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