Results 71 to 80 of about 2,514 (156)

Energy Harvesting From CO2 Emissions: The Role of Gas Concentration, Flow, and Supporting Electrolyte

Advanced Sustainable Systems, Volume 10, Issue 8, August 2026.
Energy harvesting through Carbon dioxide capture has already been demonstrated to be feasible. However, a deeper understanding of the boundary conditions governing the process is still required. In this study, particular attention was devoted to the influence of external factors on harvesting performance.
Simone Martellone, Davide Molino, Pietro Zaccagnini, Giuseppe Ferraro, Silvia Di Martino, Sergio Bocchini, Andrea Lamberti   +6 more
wiley   +1 more source

Tailored Catalytic Microenvironments Enable Efficient Electrochemical Ammonia Production

Advanced Science, Volume 13, Issue 44, 7 August 2026.
This study shows that Co2+ substitution in inverse spinel FeFeCoO4 constructs an integrated catalytic microenvironment for efficient nitrate‐to‐ammonia reduction. Jahn–Teller distortion activates Fe sites for *H generation, while hard–soft acid–base regulated dual‐metal sites optimize proton‐coupled electron transfer and intermediate adsorption ...
Qi Zhang, Peimiao Zou, Huimin Zhang, Alex J. Brown, Yingjie Song, Marc Walker, Yisong Han, Kui Xie, Shanwen Tao   +8 more
wiley   +1 more source

Global change pattern of sedimentary nitrogen isotope during the Anthropocene epoch

Communications Earth & Environment
Nitrogen (N) cycling has been reshaped during the Anthropocene epoch, yet the global change pattern of sedimentary N stable isotope (δ15N) remains unclear.
Xin Li, Meng Lu, Jintai Wu, Liding Chen, Zhiming Zhang, Xun Wang, Jianjun Zhou, Kai Jensen, Xiaonan Zhang, Xiaolin Dou   +9 more
doaj   +1 more source

Recent research trends in the rational design strategies of carbon-based electrocatalysts for electrochemical ammonia synthesis

Carbon Trends
Ammonia electrosynthesis is the most sustainable way to produce carbon-free hydrogen carriers, which would pave the way for the foreseen hydrogen economy and carbon neutralization as it has the potential to replace the conventional Haber-Bosch process ...
Hyojung Lim, Jinuk Choi, Euihyeon Hwang, Sathyanarayanan Shanmugapriya, Gnanaprakasam Janani, Subramani Surendran, Heechae Choi, Gibum Kwon, Kyoungsuk Jin, Uk Sim   +9 more
doaj   +1 more source

Advancements in Graphdiyne‐Based Multiscale Catalysts for Green Hydrogen Energy Conversion

Advanced Intelligent Discovery, Volume 2, Issue 4, August 2026.
This review systematically explores the fundamental characteristics of graphdiyne (GDY), cutting‐edge field of GDY‐based multiscale catalysts within sustainable energy conversion systems.Special emphasis is placed on the structure‒property relationships in different reactions.
Qian Xiao, Lu Qi, Siao Chen, Yurui Xue
wiley   +1 more source

Ketazine‐Linked Covalent Organic Framework for Metal‐Free Electrocatalytic Nitrate‐to‐Ammonia Conversion

Angewandte Chemie, Volume 138, Issue 31, 27 July 2026.
A metal‐free fluorinated ketazine‐linked COF is introduced as an efficient electrocatalyst for nitrate reduction to ammonia under neutral conditions. Fluorine substitution enhances π–π stacking and crystallinity, enabling a Faradaic efficiency of 59.9% and an NH3 yield rate of 1639.9 µmol h−1 mgCOF−1 at −0.9 V versus RHE. This establishes an unexplored
Islam E. Khalil, Ashadul Adalder, Badr Elkamash, Narad Barman, Darosch Asgari, Luoxing Xiang, Warisha Tahir, Franziska Hess, Ranjit Thapa, Adisak Boonchun, Uttam Kumar Ghorai, Prasenjit Das, Arne Thomas   +12 more
wiley   +2 more sources

Opportunities and Challenges of the Electrosynthesis of Nitrites and Nitrates From Ammonia

ChemCatChem, Volume 18, Issue 16, 27 August 2026.
Future progress on the electrosynthesis of nitrates and nitrites requires an integrated approach to enable consolidation of the mechanistic understanding in the short‐term, robust operation of all components at the electrolyser prototype level in the medium‐term, and integration into renewable power networks for sustainable fertilizer production in the
Thi Mung Vu, Felipe Matamala‐Troncoso, Douglas R. MacFarlane, Hoang‐Long Du, Alexandr N. Simonov   +4 more
wiley   +1 more source

Ammonia Synthesis Over an Iron Catalyst with an Inverse Structure

Advanced Science
Achieving a substantial increase in the ammonia productivity of the Haber‐Bosch (HB) process at low temperatures has been a significant challenge for over 100 years.
Masashi Hattori, Kento Miyashita, Yuki Nagasawa, Ryo Suzuki, Michikazu Hara   +4 more
doaj   +1 more source

Insights Into Nitrate‐to‐Ammonia Electrocatalysis on Graphene‐Supported Asymmetric M1N3─M2N4 Dual‐Atom Catalysts

ChemCatChem, Volume 18, Issue 16, 27 August 2026.
Stability and surface‐state screening identify catalysts with accessible electrochemical potential windows for pristine‐site availability. Side‐on@bridge adsorption enables site‐specific P1/P2 branching, while joint evaluation of limiting potential and NH3 desorption highlights NiN3─ZnN4‐P1 and CuN3─CoN4‐P2 as pathways with balanced PCET requirements ...
Shaopeng Xu, Linlin Li, Yan Yan, Wei Li, Jiaojiao Chen, Linda Zhang, Piao Ma, Xunlei Ding, Hao Li   +8 more
wiley   +1 more source

Electrochemical Reduction of Nitrate to Ammonia on Transition‐Metal Sputtered Copper Foams

ChemElectroChem, Volume 13, Issue 15, 1 August 2026.
Thin, sputter‐deposited cobalt layers on copper foam significantly enhance electrochemical reduction of nitrate to ammonia, exhibiting an approximately threefold increase in Faradaic efficiency for ammonia, likely due to a synergistic two‐step conversion pathway involving both copper and cobalt sites.
Sabita Bhandari, Nick Hausen, Xin Wei, Michael Noyong, Regina Palkovits, Ulrich Simon   +5 more
wiley   +1 more source