Results 131 to 140 of about 20,872 (301)

Strategies to mitigate greenhouse gas and nitrogen emissions in Swiss agriculture: the application of an integrated sector model [PDF]

Environmental impacts of agricultural production, such as greenhouse gas (GHG) and nitrogen emissions, are of major concern for scientists and policy makers throughout the world.
Bernard Lehmann, Michael Hartmann, Robert Huber, Simon Peter   +3 more
core  

Engineering Biochar‐Derived Functional Materials for High‐Performance Supercapacitors: Design Principles, Mechanisms, and Scalable Strategies

Carbon Energy, EarlyView.
ABSTRACT Biochar has emerged as a useful and adaptable source of carbon for supercapacitor electrodes. Its value comes from the way biomass chemistry, thermal conversion, and activation conditions shape the resulting pore network, surface groups, and degree of carbon ordering.
Soumen Mandal, Avinash C. Mendhe, Mayna Roy, Neha S. Barse, Taejoon Park, Han‐Seung Lee, Haigun Lee   +6 more
wiley   +1 more source

Characteristics of rumen microbiota and Prevotella isolates found in high propionate and low methane-producing dairy cows

Frontiers in Microbiology
Ruminal methane production is the main sink for metabolic hydrogen generated during rumen fermentation, and is a major contributor to greenhouse gas (GHG) emission.
Takumi Shinkai, Shuhei Takizawa, Osamu Enishi, Koji Higuchi, Hideyuki Ohmori, Makoto Mitsumori   +5 more
doaj   +1 more source

Factors Influencing the Green House Gas Footprint of US Dairy Farms [PDF]

Environmental Economics and Policy, Livestock Production/Industries,
Adom, F., Clayton-Niederman, Z., Kellogg, W., Kemper, Nathan, Matlock, M., Pilgrim, R., Popp, Jennie S. Hughes, Shonnard, D., Thoma, Greg, Ulrich, Rick   +9 more
core   +1 more source

KI‐Doped α‐Mo2C Stably Catalyze Near‐Equilibrium CO2 to CO Beyond 1000 Hours

Carbon Energy, EarlyView.
Through iodine doping and effective stabilization of surface oxygen content, KI‐doped α‐Mo2C achieves a sustained equilibrium yield ratio of 0.95 over 1000 h at 400°C and 4 bar in reverse water–gas shift (RWGS) reaction. Furthermore, the catalyst has been successfully scaled up to the kilogram level, indicating considerable potential for industrial ...
Haipeng Wang, Chunshan Li, Zhiguo Lv, Tao Zhuang, Jinguang Hu, Fujin Sun, Chao Zhang   +6 more
wiley   +1 more source

Perspective: Enteric methane mitigation and its impact on livestock hydrogen emissions

Journal of Dairy Science
: In a hydrogen-based economy future, hydrogen leakage is becoming an environmental concern. Ruminants naturally produce small amounts of hydrogen, which is emitted in the environment along with other fermentation gases, such as the GHG methane and ...
Alexander N. Hristov, Susan Solomon
doaj   +1 more source

Microbial co-existence and stable equilibria in a mechanistic model of enteric methane production : a thesis presented in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Mathematics at Massey University, Manawatū Campus, New Zealand [PDF]

, 2016
Globally, 14.5% of all anthropogenic greenhouse gases come from ruminants. One of these is methane, which is produced in the rumen of ruminant animals. Feed is degraded by microbes to produce volatile fatty acids (which are absorbed by the animal) and
Wang, Yuancheng
core  

Oxidative Fast Pyrolysis Enabling Autothermal Production of Porous Functionalized Biochar and Anhydrosugar/Phenol‐Rich Bio‐Oil From Biomass

Carbon Energy, EarlyView.
Oxidative fast pyrolysis of biomass enables autothermal production of value‐added products. ABSTRACT Oxidative fast pyrolysis can potentially overcome the heat‐supply bottleneck of conventional fast pyrolysis by enabling autothermal operation while also tailoring product quality through controlled oxygen addition.
Bin Li, Mengge Song, Sunwen Xia, Kexin Jia, Wojciech Jerzak, Yusuf Makarfi Isa, Dongjing Liu, Xing Xie, Qingfa Zhang, Zhong Ma, Mingfeng Wang, Weiwei Liu, Shihong Zhang, Haiping Yang, Rock Keey Liew, Su Shiung Lam   +15 more
wiley   +1 more source

Eco‐Friendly Synthesis of Cobalt Phthalocyanine for High‐Efficiency CO2${\rm CO}_{2}$ Electroreduction

Chemistry – A European Journal, EarlyView.
A sustainable synthesis of cobalt phthalocyanine (CoPc) using low‐impact solvents yields high‐performance electrocatalysts with reduced waste (E‐factor 18.6). When integrated into gas diffusion electrodes, CoPc achieves up to 12% Faradays efficiency for CO2‐to‐methanol and 65% CO2‐to‐CO conversion, aligning with state‐of‐the‐art materials and enabling ...
Gloria Zanotti, Federica Palmeri, Venanzio Raglione, Abdolhamid Khodadadi, Camille Tabaries, Jerome Capitolis, Mathieu Prevot, Laurent Piccolo, Mahmoud Zendehdel, Roberto Flammini, Giorgio Contini   +10 more
wiley   +1 more source

Sunlight‐Driven Green Synthesis of Platinum Nanoparticles From Double‐Vacancy Halide Perovskite Precursors for Methanol Reforming

Chemistry – A European Journal, EarlyView.
ABSTRACT The development of synthetic procedures for preparing metal nanoparticles with controlled size using sunlight opens new avenues toward more sustainable methods with lower energy consumption. Herein, we propose the use of double‐vacancy halide perovskites as precursors for engineering highly crystalline and small platinum nanoparticles (< 3 nm)
Kevin Mego, Saray Chacón‐Ruiz, Pedro Ruiz‐Campos, Herme G. Baldoví, Pedro Atienzar   +4 more
wiley   +1 more source