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author:

Jiang, Xiancai (Jiang, Xiancai.) [1] (Scholars:江献财) | Li, Hongmei (Li, Hongmei.) [2] | Li, Shuolin (Li, Shuolin.) [3] | Huang, Shaowei (Huang, Shaowei.) [4] | Zhu, Changli (Zhu, Changli.) [5] | Hou, Linxi (Hou, Linxi.) [6] (Scholars:侯琳熙)

Indexed by:

EI Scopus SCIE

Abstract:

Spherical-structured nano-/micromaterials with tunable shell architectures and compositions are becoming increasingly important and attractive for electrochemical energy conversion and storage. Herein, we report the synthesis of novel Ni-Co alloy@carbon microspheres by calcining Co/Ni bimetallic metal-organic frameworks (MOFs) prepared by a facile solvothermal reaction. Their structures, dimensions and electrochemical performance can be optimized by simply tuning the Co/Ni molar ratio. Benefiting from the advantageous structural and compositional features, the obtained Ni-Co alloy@carbon microspheres display exceptional electrochemical performance when used as counter electrode (CE) catalysts for dye-sensitized solar cells (DSSCs). In particular, the optimized NiCo0.2@C CE delivers an impressive power conversion efficiency (PCE) of 9.30%, showing a similar to 15.7% enhancement compared to that of Pt CE (8.04%). Additionally, the NiCo0.2@C CE also demonstrates a good long-term electrochemical stability for the I-3 (-)/I- electrolyte. This work may provide new options for the design and preparation of efficient electrocatalysts with novel morphologies and desirable compositions.

Keyword:

Counter electrode Dye-sensitized solar cells Electrochemical performance Metal-organic frameworks Ni-Co alloy@carbon microspheres

Community:

  • [ 1 ] [Jiang, Xiancai]Fuzhou Univ, Coll Chem Engn, Xueyuan Rd 2, Fuzhou 350116, Fujian, Peoples R China
  • [ 2 ] [Li, Hongmei]Fuzhou Univ, Coll Chem Engn, Xueyuan Rd 2, Fuzhou 350116, Fujian, Peoples R China
  • [ 3 ] [Li, Shuolin]Fuzhou Univ, Coll Chem Engn, Xueyuan Rd 2, Fuzhou 350116, Fujian, Peoples R China
  • [ 4 ] [Huang, Shaowei]Fuzhou Univ, Coll Chem Engn, Xueyuan Rd 2, Fuzhou 350116, Fujian, Peoples R China
  • [ 5 ] [Zhu, Changli]Fuzhou Univ, Coll Chem Engn, Xueyuan Rd 2, Fuzhou 350116, Fujian, Peoples R China
  • [ 6 ] [Hou, Linxi]Fuzhou Univ, Coll Chem Engn, Xueyuan Rd 2, Fuzhou 350116, Fujian, Peoples R China

Reprint 's Address:

  • 侯琳熙

    [Hou, Linxi]Fuzhou Univ, Coll Chem Engn, Xueyuan Rd 2, Fuzhou 350116, Fujian, Peoples R China

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Source :

CHEMICAL ENGINEERING JOURNAL

ISSN: 1385-8947

Year: 2018

Volume: 334

Page: 419-431

8 . 3 5 5

JCR@2018

1 3 . 4 0 0

JCR@2023

ESI Discipline: ENGINEERING;

ESI HC Threshold:170

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 107

SCOPUS Cited Count: 111

ESI Highly Cited Papers on the List: 5 Unfold All

  • 2020-5
  • 2020-3
  • 2020-1
  • 2019-3
  • 2018-11

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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