ニッケルコーティングされた活性炭繊維電極に基づく低コストの柔軟な超電容器の電気化学的評価
Paola G Vilchis-Gutiérrez1,2, José A Ávila-Niño3, Ma Dolores Durán-García1
1Universidad Autónoma del Estado de México, Cerro de Coatepec s/n, Ciudad Universitaria Toluca Estado de México 50000 Mexico mddurang@uaemex.mx.
RSC advances
|February 12, 2026
まとめ
研究者らは,綿の繊維,活性炭,ニッケルを用いた低コストの柔軟なスーパーキャパシティーを開発した. これらの材料のバランスを最適化することで,ウェアラブル・エレクトロニクスの高い性能と安定性が得られます.
科学分野:
- マテリアルサイエンス 材料科学
- 電気化学 電気化学について
- エネルギー貯蔵 エネルギー貯蔵
背景:
- フレキシブルなスーパーコンデンサは,ウェアラブル電子機器にとって極めて重要です.
- 費用対効果が高く,高性能な材料を開発することは,依然として課題です.
研究 の 目的:
- 綿の繊維電極を用いた低コストで柔軟な超電容器を作成する.
- 活性炭とニッケル含有量を制御することにより,電気化学的性能を最適化します.
主な方法:
- 綿の繊維を活性炭 (AC) インクで浸透して電極を製造する.
- スプッタリングを用いて電子をニッケル (Ni) でコーティングする.
- 特定の容量とサイクル安定性を含む電気化学性能の評価.
主要な成果:
- 最適化されたAC負荷 (0.2041g) とNi堆積 (0.002g) は,382.40 mF cm−2.2.の特異容量をもたらした.
- 適度なニッケルコーティングにより,電子輸送が強化され,抵抗が低下しました.
- 過剰なニッケルは,毛穴を遮断することによって容量を低下させましたが,デバイスの安定性を改善しました.
- 1000サイクル後に95.76%の安定性を達成しました.
結論:
- 活性炭とニッケル含有量のバランスをとることは,スーパーコンデンサの性能にとって非常に重要です.
- この研究は,柔軟で軽量でウェアラブルな超電容器を進歩させています.
- 持続可能なエネルギー貯蔵ソリューションへの道を提示します.
関連する概念動画
What is an Electrochemical Gradient?
128.5K
Adenosine triphosphate, or ATP, is considered the primary energy source in cells. However, energy can also be stored in the electrochemical gradient of an ion across the plasma membrane, which is determined by two factors: its chemical and electrical gradients.
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
128.5K
Carbon Skeletons
115.5K
Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side...
115.5K
The Carbon Cycle
44.1K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
44.1K
Standard Electrode Potentials
50.5K
On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
50.5K
Acid–Base Equilibria: Activity-Based Definition of pH
1.3K
For an ideal solution, the pH is defined as the negative logarithm of the hydrogen ion concentration. For a non-ideal solution, an accurate measurement of the pH must consider the negative logarithm of the hydrogen ion activity rather than concentration. In such a solution, the pH can be more accurately defined as the negative logarithm of a product of the hydrogen ion concentration and its activity coefficient.
In solutions of very low ionic strength—for example, pure water—the...
In solutions of very low ionic strength—for example, pure water—the...
1.3K
Secondary Active Transport
138.2K
One example of how cells use the energy contained in electrochemical gradients is demonstrated by glucose transport into cells. The ion vital to this process is sodium (Na+), which is typically present in higher concentrations extracellularly than in the cytosol. Such a concentration difference is due, in part, to the action of an enzyme “pump” embedded in the cellular membrane that actively expels Na+ from a cell. Importantly, as this pump contributes to the high concentration of...
138.2K


