Ultra-fast NH4+ Storage: Strong H Bonding between NH4+ and Bi-layered V2O5

By Shengyang Dong, Woochul Shin, Heng Jiang, Xianyong Wu, Zhifei Li, John Holoubek, W. Stickle, B. Key, Cong Liu, Jun Lu and 3 more. Chem, 2019

272 citations recorded by the source corpus.

Summary It is accepted that the performance of batteries is dominated by the properties of their electrode materials. However, this maxim is built from the practice that the majority of research efforts have been directed toward batteries that use metal ions as the charge carriers. Herein, we show that the use of NH4+ results in battery performance governed by the chemical nature of the ion-electrode interaction. Specifically, we show that H bonding between NH4+ and a bi-layered V2O5 electrode is coupled with prominent pseudocapacitive behavior. The importance of the H bonding is demonstrated by comparing the storage of NH4+ in V2O5 with storage of K+. In addition to having a higher capacity and longer life of 30,000 cycles, NH4+ storage is overwhelmingly more pseudocapacitive than the K+ storage. Furthermore, first-principle calculations reveal an intriguing ion rotation-diffusion mechanism of NH4+ inside the V2O5 structure, akin to swinging on monkey bars.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/2e375d69ce5c4b2b91fef4d88fc39344d05610fb

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

  1. S. Qiao
  2. M. Jaroniec
  3. Dongliang Chao
  4. L. Dai
  5. Yao Zheng
  6. Xiong Wen (David) Lou
  7. Y. Jiao
  8. Qiang Zhang

In Electronic, Optical and Magnetic Materials

  1. M. Jaroniec
  2. S. Qiao
  3. Dongliang Chao

Citations in the corpus