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Overview of emerging catalytic materials for electrochemical green ammonia synthesis and process

Carbon Energy 2023年第12期5卷 31-82页

作者： Venkata Thulasivarma Chebrolu Daehee Jang gokana mohana rani Chaeeun Lim Kijung Yong Won Bae Kim Department of Chemical Engineering Pohang University of Science and Technology(POSTECH)PohangGyeongbukSouth Korea Department of Biological Sciences and Bioengineering Inha UniversityIncheonRepublic of Korea

The concept of“green-ammonia-zero-carbon emission”is an emerging research topic in the global community and many countries driving toward decarbonizing a diversity of applications dependent on fossil *** light of this,electrochemical nitrogen reduction reaction(ENRR)received great attention at ambient *** low efficiency(%)and ammonia(NH_(3))production rates are two major challenges in making a sustainable ***,hydrogen evolution reaction is another crucial factor for realizing this NH_(3)synthesis to meet the large-scale commercial ***,the(i)importance of NH_(3)as an energy carrier for the next future,(ii)discussion with ENRR theory and the fundamental mechanism,(iii)device configuration and types of electrolytic systems for NH_(3)synthesis including key metrics,(iv)then moving into rising electrocatalysts for ENRR such as single-atom catalysts(SACs),MXenes,and metal–organic frameworks that were scientifically summarized,and(v)finally,the current technical contests and future perceptions are ***,this review aims to give insightful direction and a fresh motivation toward ENRR and the development of advanced electrocatalysts in terms of cost,efficiency,and technologically large scale for the synthesis of green NH_(3).

关键词： electrochemical ammonia synthesis hydrogen energy carrier metal-organic-frameworks MXenes single-atom-catalysts

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Fabrication of MoS2 Petals‑Decorated PAN Fibers‑Based Triboelectric Nanogenerator for Energy Harvesting and Smart Study Room Touch Sensor Applications

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Advanced Fiber Materials 2024年第6期6卷 1825-1838页

作者： gokana mohana rani Kugalur Shanmugam Ranjith Seyed Majid Ghoreishian ATEzhil Vilian Changhyun Roh Reddicherla Umapathi Young‑Kyu Han Yun Suk Huh NanoBio High‑Tech Materials Research Center Department of Biological Sciences and BioengineeringInha UniversityIncheon 22212Republic of Korea Department of Energy and Materials Engineering Dongguk University-SeoulSeoul 100‑715Republic of Korea Department of Chemical Engineering University of South CarolinaColumbiaSC 29208USA Decommissioning Technology Division Korea Atomic Energy Research InstituteDaejeon 34057Republic of Korea Nuclear Science and Technology Quantum Energy Chemical EngineeringUniversity of Science and TechnologyDaejeon 34113Republic of Korea

Currently,the development of clean and green energy-harvesting solutions is becoming increasingly *** have long been considered as the most traditional and efficient technology for powering electronic ***,they have a limited lifetime and require constant observation and *** address this issue,triboelectric nanogenerator(TENG)has garnered considerable attention as a prospective sustainable power source for smart ***,several approaches for improving their output performance have been ***,we created a unique TENG based on densely packed molybdenum disulfide(MoS2)petals grown on electrospun polyacrylonitrile(PAN)fibers(MPF)using a hydrothermal *** MPF-TENG is used for mechanical energy-harvesting and smart study room touch sensor *** effects of pure MoS2 powder,PAN fibers,and MoS2 grown on the PAN fibers were ***2 addition enhanced the surface charge,surface roughness,and electrical *** MPF-TENG had a maximum triboelectric output voltage,current,charge,and average power density of 245.3 V,5.12µA,60.2 nC,and 1.75 W/m2,*** MPF-TENG remained stable for more than 10,000 *** MPF-TENG successfully illuminated blue LEDs,turned on a timer clock,and could be used in smart study rooms to generate *** study provides an effective method for improving the performance of TENG by growing MoS2 petals on PAN fibers,with promising applications in power supplies for portable electronic ***,the fabricated MPF-TENG was demonstrated to be a potential touch sensor for smart study rooms to save electricity.

关键词： Triboelectric nanogenerator Polyacrylonitrile fibers Molybdenum disulfide Energy harvesting Self-powered electronics Smart study room

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