Energy

5 open-access papers in Energy, free to watch.

4:26

Thermal sculpting of nanoconfined single-atom cavities enables urea electrosynthesis with near-unity selectivity

Boxuan Yang, Yuxin Zeng, Lifeng Yin, Yunrong Dai, Qingsong Hua

Fertilizer production helps feed nearly half the world, but it consumes huge amounts of energy and creates carbon dioxide. This study turns waste gases and wastewater into fertilizer inside a space far smaller than a human hair is wide. What if the key to making urea selectively is not a new molecule, but a cavity barely two nanometers wide? This study uses heat to sculpt those tiny spaces around single copper atoms.

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4:33

Redox regulation in O2 -tolerant [FeFe] hydrogenases: insights from two homologues

Rinat Khundoker, Sean H. Majer, Alexey Silakov

Most hydrogen-making enzymes fail when they meet air. But two nearly matching versions of one enzyme behave very differently: one recovers quickly, while the other gets stuck in a protected inactive state. What if two hydrogenases are about eighty-five percent identical, yet one is far more likely to shut down in oxygen, and that apparently disadvantage helps it survive oxygen exposure?

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4:16

Temperature-Dependent Electrocatalytic Methanol Oxidation Over a Pd/MnO2/Exfoliated Boron Ternary Composite in an Alkaline Medium

Mustapha Balarabe Idris, Bhekie B. Mamba, Xolile Godfrey Fuku

A fuel cell may run on methanol, but its most expensive working surface can become clogged by leftover carbon. This study combines three materials so each one handles a different part of the problem. What happens when a methanol fuel-cell catalyst is engineered as a three-part team, and then heated? This study finds that performance rises with temperature, but only up to a specific sweet spot: 323 kelvin.

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3:41

A robust multi-objective optimization algorithm for accurate parameter estimation for solar cell models

Manish Kumar Singla, Jyoti Gupta, Mohammed H. Alsharif, Mun-Kyeom Kim, Mohammad Aljaidi, Murodbek Safaraliev

A solar panel can be physically perfect yet mathematically misunderstood. This study finds a way to estimate the hidden numbers inside a panel more accurately, helping models predict how much power it can produce. Solar-cell models need parameters that manufacturer datasheets do not provide. This paper tackles that gap by combining particle-swarm exploration with rat-search exploitation, aiming to avoid local minima while estimating three- and four-diode models.

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4:14

Diamine Groups on the Surface of Silica Particles as Complex-Forming Linkers for Metal Cations

Veronika Tomina, N. V. Stolyarchuk, Olha Semeshko, Mariusz Barczak, Inna Melnyk

Cleaning industrial water is not only about removing toxic metals. It can also recover valuable metals for reuse. This study finds that a particle with more metal-catching groups is not always the better catcher. What if adding more metal-binding groups made a silica sorbent perform worse? This study shows that pore structure and group accessibility can matter more than simply counting nitrogen sites.

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