3 more other lanthanides obtained。 The only drawback is that the proton-conducting ceramic  BaCeO3   chemical  groups  in  an  atmosphere  of  CO2   and  H2O  in  the displa

y stability is not  very  high,  it  is  easy  to  react  with  other  substances。  The  added  Ta 5+, In3+, Ga3+ isoelectric relatively  large  negative  ions  to  partially  replace  the  Ce4+  i ons can be very good  to  enhance  its  chemical  stability。Proton  conducting  ceramics have unique electrical conducting properties at elevated temperatures that make them suitable for a number of  electrochemical  device  applications  including  protonic  cer amic  fuel  cells,  steam  electrolyzers,  hydrogen  sensors,  hydrogen  permeation  membra

nes, steam permeation membranes, catalytic membrane reactors, etc。 However, the r efractory  nature  of  the  currently  prevailing  proton  conducting  ceramics,  with  barium

zirconates and cerates as representatives, results in significant challenges to their i mplementation  in  these  promising  applications。

Proton conducting ceramic has unique electrical properties  at  high  temperatures, they are suitable for many electrochemical device comprising a  proton  conducting ceramic fuel cells, steam electrolysis, a hydrogen gas sensor, a hydrogen permeable membrane, vapor permeable membrane, catalytic membrane reactors, etc。  。  Popular proton  conductive  ceramics  to  Ba,  Zr,  Ce  represented。

BaCe0。7In0。2Gd0。1O3-as conductive ceramic material has many advantages, after doping In its chemical stability increased conductivity doping Gd has  also  been  im proved,  and  the  group  is  BaCeO3  conductive  ceramic  material  is  a  proton conductin g  the  highest  conductivity  of  the  ceramic。  Common  BaCeO3   based  conductive cera

mics  sintered  require  relatively  harsh  conditions,  up  to  1700  ℃,  but  after  adding  a

sintering  aid  sintering  conditions  have  been  greatly  improved,  the  degree  to  about  1

300 ℃ sintered compact。 So we study the effects of different sintering aids on  the sintering  behavior  and  electrical  conductivity  samples  in  this  experiment。  Low  tem

perature solid phase reaction sintering method BaCe0。7In0。2Gd0。1O3-sintered samples, choose  a  different  sintering  aids,  influence  of  sintering  aids  on  the  sintering  charac

teristics BaCe0。7In0。2Gd0。1O3-ceramics, and on the future research directions It has  a certain  role  in  guiding。

Through solid reaction sintering Preparation of the sample obtained using X-ray diffraction  (XRD)  and  scanning  electron  microscopy  experiments  (SEM),  the  sampl es  were  found  to  belong  to  a  single  phase  perovskite  structure,  and  CuO  added  as a sintering aid sample density is very good,  after  the  match  had  sintering  curve  sa mples to verify this conclusion:  the  density  is  in  descending  order  is  CuO,  CoO,  N iO, Fe2O3。 While the electrical properties of the samples  after  the  test  was  found to make  adding  sample  CuO  as  sintering  aids  electrical  performance  is  relatively  goo