Alkylthiol surface engineering: an effective strategy toward enhanced electrocatalytic N2-to-NH3 fixation by CoP nanonarray

2021 ◽  
Author(s):  
Zhaobai Du ◽  
Jie Liang ◽  
Shaoxiong Li ◽  
Zhaoquan Xu ◽  
Ting Shuai Li ◽  
...  
Keyword(s):  
Surface Engineering ◽  
Attractive Alternative ◽  
Effective Strategy ◽  
Renewable Electricity ◽  
Electricity Storage ◽  
Bosch Process ◽  
Slow Kinetics

Electrosynthesis of NH3 from N2 addresses the need for renewable electricity storage and provides an attractive alternative to the Haber–Bosch process. Unfortunately, it is hindered by slow kinetics and low...

scholarly journals Hydrogen radical-shuttle (HRS)-enabled photoredox synthesis of indanones via decarboxylative annulation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Bo Yang ◽  
Shi-Jun Li ◽  
Yongdong Wang ◽  
Yu Lan ◽  
Shifa Zhu
Keyword(s):  
Organic Synthesis ◽  
Carbonyl Compounds ◽  
Density Functional ◽  
Functional Group ◽  
Hydrogen Atom Transfer ◽  
Effective Strategy ◽  
Functional Theory ◽  
Slow Kinetics ◽  
Radical Transfer ◽  
Hydrogen Radical

AbstractHydrogen atom transfer (HAT) process is a powerful and effective strategy for activating C-H bonds followed by further functionalization. Intramolecular 1,n (n = 5 or 6)-HATs are common and frequently encountered in organic synthesis. However, intramolecular 1,n (n = 2 or 3)-HAT is very challenging due to slow kinetics. Compared to proton-shuttle process, which is well established for organic synthesis, hydrogen radical-shuttle (HRS) is unexplored. In this work, a HRS-enabled decarboxylative annulation of carbonyl compounds via photoredox catalysis for the synthesis of indanones is developed. This protocol features broad substrate scope, excellent functional group tolerance, internal hydrogen radical transfer, atom- and step-economy. Critical to the success of this process is the introduction of water, acting as both HRS and hydrogen source, which was demonstrated by mechanistic experiments and density functional theory (DFT) calculations. Importantly, this mechanistically distinctive HAT provides a complement to that of typical proton-shuttle-promoted, representing a breakthrough in hydrogen radical transfer, especially in the inherently challenging 1,2- or 1,3-HAT.

scholarly journals Large-scale compressed hydrogen storage as part of renewable electricity storage systems

2021 ◽  
Vol 46 (29) ◽  
pp. 15671-15690
Author(s):  
Ahmed M. Elberry ◽  
Jagruti Thakur ◽  
Annukka Santasalo-Aarnio ◽  
Martti Larmi
Keyword(s):  
Hydrogen Storage ◽  
Large Scale ◽  
Storage Systems ◽  
Renewable Electricity ◽  
Electricity Storage

scholarly journals Conceptualizing a new circular economy feature – storing renewable electricity in batteries beyond EV end-of-life: the case of Slovenia

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Matevz Obrecht ◽  
Rhythm Singh ◽  
Timitej Zorman
Keyword(s):  
Life Cycle ◽  
Circular Economy ◽  
Energy System ◽  
Electricity Production ◽  
Potential Solution ◽  
Renewable Electricity ◽  
Content Type ◽  
Electricity Storage ◽  
Pv Systems ◽  
Battery Capacity

PurposeThis paper aims to forecast the availability of used but operational electric vehicle (EV) batteries to integrate them into a circular economy concept of EVs' end-of-life (EOL) phase. Since EVs currently on the roads will become obsolete after 2030, this study focuses on the 2030–2040 period and links future renewable electricity production with the potential for storing it into used EVs' batteries. Even though battery capacity decreases by 80% or less, these batteries will remain operational and can still be seen as a valuable solution for storing peaks of renewable energy production beyond EV EOL.Design/methodology/approachStoring renewable electricity is gaining as much attention as increasing its production and share. However, storing it in new batteries can be expensive as well as material and energy-intensive; therefore, existing capacities should be considered. The use of battery electric vehicles (BEVs) is among the most exciting concepts on how to achieve it. Since reduced battery capacity decreases car manufacturers' interest in battery reuse and recycling is environmentally hazardous, these batteries should be integrated into the future electricity storage system. Extending the life cycle of batteries from EVs beyond the EV's life cycle is identified as a potential solution for both BEVEOL and electricity storage.FindingsResults revealed a rise of photovoltaic (PV) solar power plants and an increasing number of EVs EOL that will have to be considered. It was forecasted that 6.27–7.22% of electricity from PV systems in scenario A (if EV lifetime is predicted to be 20 years) and 18.82–21.68% of electricity from PV systems in scenario B (if EV lifetime is predicted to be 20 years) could be stored in batteries. Storing electricity in EV batteries beyond EV EOL would significantly decrease the need for raw materials, increase energy system and EV sustainability performance simultaneously and enable leaner and more efficient electricity production and distribution network.Practical implicationsStoring electricity in used batteries would significantly decrease the need for primary materials as well as optimizing lean and efficient electricity production network.Originality/valueEnergy storage is one of the priorities of energy companies but can be expensive as well as material and energy-intensive. The use of BEV is among the most interesting concepts on how to achieve it, but they are considered only when in the use phase as vehicle to grid (V2G) concept. Because reduced battery capacity decreases the interest of car manufacturers to reuse batteries and recycling is environmentally risky, these batteries should be used for storing, especially renewable electricity peaks. Extending the life cycle of batteries beyond the EV's life cycle is identified as a potential solution for both BEV EOL and energy system sustainability, enabling more efficient energy management performance. The idea itself along with forecasting its potential is the main novelty of this paper.

scholarly journals Surface Engineering of Gold Nanorods for Cytochrome c Bioconjugation: An Effective Strategy To Preserve the Protein Structure

ACS Omega ◽  
2018 ◽  
Vol 3 (5) ◽  
pp. 4959-4967 ◽  
Author(s):  
Tiziana Placido ◽  
Lorenzo Tognaccini ◽  
Barry D. Howes ◽  
Alessandro Montrone ◽  
Valentino Laquintana ◽  
...  
Keyword(s):  
Protein Structure ◽  
Cytochrome C ◽  
Gold Nanorods ◽  
Surface Engineering ◽  
Effective Strategy

scholarly journals Nickel-Iron layered double hydroxides for improved Ni/Fe hybrid battery-electrolyser

2021 ◽  
Author(s):  
Audrey Iranzo ◽  
Fokko M. Mulder
Keyword(s):  
Layered Double Hydroxides ◽  
Renewable Electricity ◽  
Electricity Grid ◽  
Electricity Storage ◽  
Nickel Iron ◽  
Electrolytic Hydrogen ◽  
Double Hydroxides

The transition to renewable electricity sources and green feedstock implies the development of electricity storage and conversion systems to both stabilise the electricity grid and to provide electrolytic hydrogen. We...

Non-thermal plasma fixing of nitrogen into nitrate: solution for renewable electricity storage?

2018 ◽  
Vol 11 (1) ◽  
pp. 92-96 ◽  
Author(s):  
Yi He ◽  
Zhengwu Chen ◽  
Zha Li ◽  
Guangda Niu ◽  
Jiang Tang
Keyword(s):  
Thermal Plasma ◽  
Nitrate Solution ◽  
Renewable Electricity ◽  
Electricity Storage ◽  
Non Thermal Plasma

scholarly journals A Tuned Lewis Acidic Catalyst Guided by Hard-soft Acid-base Theory to Promote N2 Electroreduction

2021 ◽  
Author(s):  
Yongwen Ren ◽  
Chang Yu ◽  
Xuedan Song ◽  
Fengyi Zhou ◽  
Xinyi Tan ◽  
...  
Keyword(s):  
Reduction Reaction ◽  
Ambient Conditions ◽  
Renewable Electricity ◽  
Acid Base ◽  
Acidic Catalyst ◽  
Bosch Process ◽  
Base Theory ◽  
Soft Acid

Electrocatalytic N2 reduction reaction (NRR) to ammonia (NH3) driven by intermittent renewable electricity under ambient conditions offers an alternative to the energy-intensive Haber−Bosch process. However, as a distinct core of...

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