One step towards the 1T/2H-MoS2 mixed phase: a journey from synthesis to application

Materials Chemistry Frontiers ◽

10.1039/d0qm00802h ◽

2021 ◽

Author(s):

Sarmistha Das ◽

Gayatri Swain ◽

Kulamani Parida

Keyword(s):

Energy Storage ◽

Mixed Phase ◽

Energy Storage And Conversion ◽

Pollutant Degradation ◽

Top Down ◽

Bottom Up ◽

One Step

The mixed phase 1T/2H-MoS2, synthesized by top-down and bottom-up approaches reveals intriguing properties due to the semiconducting 2H with metallic 1T phase and exhibits various applications including pollutant degradation, energy storage and conversion.

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When top-down meets bottom-up: Is there a collaborative business model for local energy storage?

Energy Research & Social Science ◽

10.1016/j.erss.2020.101606 ◽

2020 ◽

Vol 69 ◽

pp. 101606 ◽

Cited By ~ 1

Author(s):

Antonia Proka ◽

Matthijs Hisschemöller ◽

Derk Loorbach

Keyword(s):

Energy Storage ◽

Business Model ◽

Local Energy ◽

Top Down ◽

Bottom Up

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Delineating policy mixes: Contrasting top-down and bottom-up approaches to the case of energy-storage policy in California

Research Policy ◽

10.1016/j.respol.2018.04.014 ◽

2019 ◽

Vol 48 (10) ◽

pp. 103582 ◽

Cited By ~ 13

Author(s):

Jan Ossenbrink ◽

Sveinbjoern Finnsson ◽

Catharina R. Bening ◽

Volker H. Hoffmann

Keyword(s):

Energy Storage ◽

Top Down ◽

Bottom Up ◽

Policy Mixes

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Using hydrogen peroxide to mediate through a one-step hydrothermal method for the fast and green synthesis of N-CDs

RSC Advances ◽

10.1039/c5ra12976a ◽

2015 ◽

Vol 5 (116) ◽

pp. 95744-95749 ◽

Cited By ~ 4

Author(s):

Jiangling He ◽

Bingfu Lei ◽

Haoran Zhang ◽

Mingtao Zheng ◽

Hanwu Dong ◽

...

Keyword(s):

Hydrogen Peroxide ◽

High Pressure ◽

High Temperature ◽

Green Synthesis ◽

Hydrothermal Method ◽

Formation Mechanism ◽

Formation Process ◽

Top Down ◽

Bottom Up ◽

One Step

The strategy for the formation mechanism of N-CDs under high temperature and high pressure can be summarized as consisting of two parts including top-down and bottom-up. It can serve as an efficient way to express the detailed formation process of N-CDs.

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Conductive Carbon Materials from the Hydrothermal Carbonization of Vineyard Residues for the Application in Electrochemical Double-Layer Capacitors (EDLCs) and Direct Carbon Fuel Cells (DCFCs)

Materials ◽

10.3390/ma12101703 ◽

2019 ◽

Vol 12 (10) ◽

pp. 1703 ◽

Cited By ~ 5

Author(s):

Viola Hoffmann ◽

Dennis Jung ◽

Joscha Zimmermann ◽

Catalina Rodriguez Correa ◽

Amal Elleuch ◽

...

Keyword(s):

Energy Storage ◽

Double Layer ◽

Carbon Materials ◽

Hydrothermal Carbonization ◽

Energy Storage And Conversion ◽

Direct Carbon Fuel Cell ◽

Electrochemical Double Layer Capacitors ◽

One Step ◽

Electrochemical Double Layer ◽

Double Layer Capacitors

This study investigates the production of bio-based carbon materials for energy storage and conversion devices based on two different vineyard residues (pruning, pomace) and cellulose as a model biomass. Three different char categories were produced via pyrolysis at 900 °C for 2 h (biochars, BC), hydrothermal carbonization (HTC) (at 220, 240 or 260 °C) with different reaction times (60, 120 or 300 min) (hydrochars, HC), or HTC plus pyrolysis (pyrolyzed hydrochars, PHC). Physicochemical, structural, and electrical properties of the chars were assessed by elemental and proximate analysis, gas adsorption surface analysis with N2 and CO2, compression ratio, bulk density, and electrical conductivity (EC) measurements. Thermogravimetric analysis allowed conclusions to be made about the thermochemical conversion processes. Taking into consideration the required material properties for the application in electrochemical double-layer capacitors (EDLC) or in a direct carbon fuel cell (DCFC), the suitability of the obtained materials for each application is discussed. Promising materials with surface areas up to 711 m2 g−1 and presence of microporosity have been produced. It is shown that HTC plus pyrolysis from cellulose and pruning leads to better properties regarding aromatic carbon structures, carbon content (>90 wt.%), EC (up to 179 S m−1), and porosity compared to one-step treatments, resulting in suitable materials for an EDLC application. The one-step pyrolysis process and the resulting chars with lower carbon contents and low EC values between 51 and 56 S m−1 are preferred for DCFC applications. To conclude, biomass potentials can be exploited by producing tailored biomass-derived carbon materials via different carbonization processes for a wide range of applications in the field of energy storage and conversion.

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